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Block Copolymer patents



      
           
This page is updated frequently with new Block Copolymer-related patent applications. Subscribe to the Block Copolymer RSS feed to automatically get the update: related Block RSS feeds. RSS updates for this page: Block Copolymer RSS RSS


Polyester/polycarbonate block copolymers via one-pot, neat ring opening polymerization

Xerox

Polyester/polycarbonate block copolymers via one-pot, neat ring opening polymerization

Date/App# patent app List of recent Block Copolymer-related patents
01/15/15
20150018498
 Purification of functionalized triblock copolymers via methanol trituration patent thumbnailPurification of functionalized triblock copolymers via methanol trituration
A method of making a pure block copolymer includes forming a crude block copolymer; heating a solution of the crude block copolymer and alcohol; and cooling the solution to promote precipitation of a purified block copolymer, wherein an amount of impurities remaining in the purified block copolymer is from about 0 to about 5 wt % based on a total weight of the purified block copolymer; a ratio of a polydispersity index of the crude block copolymer to a polydispersity index of the purified block copolymer is from about 1.02 to about 1.25; a ratio of a molecular weight of the crude block copolymer to a molecular weight of the purified block copolymer is from about 0.75 to about 1.0; and a ratio of a number average molecular weight of the crude block copolymer to a number average molecular weight of the purified block copolymer is from about 0.65 to about 1.. .
Xerox Corporation
01/15/15
20150018496
 Polyester/polycarbonate block copolymers via one-pot, neat ring opening polymerization patent thumbnailPolyester/polycarbonate block copolymers via one-pot, neat ring opening polymerization
The instant disclosure describes polyester synthesis processes, including processes for the ring-opening polymerization (rop) of cyclic organic monomer components and components comprising a functional group using an organocatalyst system to effect rop-based block copolymer preparation.. .
Xerox Corporation
01/15/15
20150018483
 Method for generation of nanoparticles patent thumbnailMethod for generation of nanoparticles
A discrete nanostructure formed by a method comprising providing an aliphatic multi-block copolymer. The aliphatic multi-block copolymer includes at least one polyester block and at least one functionalized polycarbonate block.
Xerox Corporation
01/15/15
20150018476
 Fluorinated acrylate block copolymers with low dynamic surface tension patent thumbnailFluorinated acrylate block copolymers with low dynamic surface tension
The present invention relates to a composition, comprising a binder resin, a block copolymer which comprises at least a block a and a block b, wherein the block a comprises monomer units derived from a compound selected from (meth)acrylic acid, a (meth)acrylic acid ester, a (meth)acrylamide, a vinyl aromatic compound, or any mixture thereof, the block b comprises monomer units derived from a compound selected from a fluorinated (meth)acrylic ester having the following formula (i): h2c═c(r1)(c(0)orf-1), wherein r1 is h or methyl; and rf-1 is an organic residue containing a perfluorinated c4-6alkyl group, a fluorinated alpha-olefin having the following formula (ii): h2c═ch(rf-2) (ii) wherein rf-2 is an organic residue containing a perfluorinated c4-6 alkyl group, i.e. —(cf2)3-5—cf3 or any mixture thereof..
Basf Se
01/15/15
20150018461
 Adhesive composition and method patent thumbnailAdhesive composition and method
An adhesive composition contains a block copolymer hot melt adhesive and a vapor releasing vapor corrosion inhibitor mixed with the block copolymer hot melt adhesive, the vapor corrosion inhibitor being in the form of particles suspended in the adhesive composition, the particles preferably having a maximum dimension of less than about 30 microns. One improvement results from inclusion in the adhesive mixture of a titanium and/or zirconium containing coupling agent, either separately or as part of the vci particles.
Transhield Technology As
01/15/15
20150017868
 Hot melt adhesive containing a hydrogenated styrenic block copolymer and an ethylene vinyl acetate copolymer exhibiting low blocking force patent thumbnailHot melt adhesive containing a hydrogenated styrenic block copolymer and an ethylene vinyl acetate copolymer exhibiting low blocking force
A hot melt adhesive composed of an ethylene vinyl acetate copolymer, a hydrogenated styrenic block copolymer, a tackifying resin, and a liquid plasticizer. The preferred ethylene vinyl acetate copolymer has a vinyl acetate content between 8 and 28 percent by weight, and the preferred hydrogenated styrenic block copolymer is a styrene-ethylene-butylene-styrene having about 30% styrene content and essentially no diblock.
Bostik, Inc.
01/15/15
20150017547
 Electrochemical devices based on block copolymers patent thumbnailElectrochemical devices based on block copolymers
The present invention relates generally to electrolyte materials. According to an embodiment, the present invention provides for a solid polymer electrolyte material that has high ionic conductivity and is mechanically robust.
Seeo, Inc
01/15/15
20150017392
 Reflective films, articles and methods of making the same patent thumbnailReflective films, articles and methods of making the same
A reflective film or article including a substrate, a smoothing layer adjoining and extending across at least a portion of the first major surface of the substrate, a tie layer having a first major surface adjoining and extending across at least a portion of the second major surface of the substrate, and a metallic layer adjoining and extending across at least a portion of the second major surface of the tie layer. The smoothing layer includes poly(methyl methacrylate) and a first block copolymer having at least two endblock polymeric units and at least one midblock polymeric unit derived from first and second monoethylenically unsaturated monomers selected from a methacrylate, acrylate, vinyl ester, or combination thereof, respectively, each endblock having a glass transition temperature (tg) of at least 50° c., and each endblock having a tg no greater than 20° c..
3innovative Properties Company
01/15/15
20150017177
 Injectable, non-aqueous suspension with high concentration of therapeutic agent patent thumbnailInjectable, non-aqueous suspension with high concentration of therapeutic agent
An injectable, nonaqueous suspension including at least one therapeutic agent suspended in a single component vehicle. The single component vehicle is a single amphiphilic material, such as a polyethoxylated castor oil or derivative thereof, a polyoxyethylene alkyl ether, a polyoxyethylene sorbitan fatty acid ester, a polyoxyethylene stearate, a block copolymer of polyethylene oxide-polypropylene oxide-polyethylene oxide, a block copolymer of polypropylene oxide-polyethylene oxide-polypropylene oxide, a tetra-functional block copolymer of polyethylene oxide-polypropylene oxide, or a tetra-functional block copolymer of polypropylene oxide-polyethylene oxide.
Durect Corporation
01/15/15
20150013908
 Etching apparatus patent thumbnailEtching apparatus
An etching apparatus includes a controller configured to control a high frequency power supply to supply a high frequency power to a mounting table for etching a polymer layer formed on a base layer placed on the mounting table, using plasma generated from a predetermined gas supplied from a gas supply source by the high frequency power, the polymer layer having a periodic pattern of a first polymer and a second polymer formed by self-assembling the first polymer and the second polymer of a block copolymer that is capable of being self-assembled, the high frequency power being set for etching the polymer layer using the generated plasma such that the second polymer is removed and a pattern of the first polymer is formed for subsequently etching the base layer using the pattern of the first polymer as a mask.. .
Tokyo Electron Limited
01/15/15
20150013741

Thermoelectric conversion material


The present invention provides a thermoelectric conversion material of which the structure is controlled to have nano-order microscopic pores and which has a low thermal conductivity and has an improved thermoelectric performance index. In the thermoelectric conversion material having a thermoelectric semiconductor layer formed on a block copolymer substrate that comprises a block copolymer having microscopic pores, wherein the block copolymer comprises a polymer unit (a) formed of a monomer capable of forming a homopolymer having a glass transition temperature of 50° c.
Lintec Corporation
01/08/15
20150011700

Preparation, purification and use of high-x diblock copolymers


This invention relates to the preparation and purification of high-x (“chi”) diblock copolymers. Such copolymers contain two segments (“blocks”) of polymers with significantly different interaction parameters and can be used in directed self-assembly applications..
E.i. Du Pont De Nemours And Company
01/08/15
20150011687

Aqueous pigment dispersion liquid and aqueous pigment inkjet ink using same


The present invention is an aqueous pigment dispersion liquid for inkjet comprising a pigment and a pigment dispersant. The pigment dispersant is at least any one of a graft copolymer and a block copolymer each comprising a polymer chain a and a polymer chain b, wherein the polymer chain a comprises 20 to 60 mass % of a constituent unit derived from a first cycloalkyl group-containing (meth)acrylate, 10 to 35 mass % of a constituent unit derived from (meth)acrylic acid, and 5 to 70 mass % of a constituent unit derived from another (meth)acrylate and the polymer chain b comprises at least any one of a constituent unit derived from a second cycloalkyl group-containing (meth)acrylate and a constituent unit derived from a vinyl monomer or (meth)acrylate having an aromatic ring..
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
01/08/15
20150011447

Additives for fuels and oils comprising functionalised diblock copolymers


Concentrates containing specific functionalised diblock copolymers serve as effective additives for improving the cold flow behaviour of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.. .
01/08/15
20150011089

Pattern formation method


According to one embodiment, a pattern formation method includes forming a layer above an underlying layer. The layer includes a block copolymer.
Kabushiki Kaisha Toshiba
01/08/15
20150010869

Methods of providing patterned chemical epitaxy templates for self-assemblable block copolymers for use in device lithography


A method of forming a patterned chemical epitaxy template, for orientation of a self-assemblable block copolymer including first and second polymer blocks, on a surface of a substrate, the method including applying a primer layer of a primer composition to the surface, the primer composition including a first polymer moiety having a chemical affinity with the first polymer blocks and a second polymer moiety having a chemical affinity with the second polymer blocks, selectively exposing the surface, the primer layer and any overlying layer to actinic radiation to provide exposed and unexposed regions, to render labile the first polymer moiety in the exposed region, and removing the labile first polymer moiety from the exposed region to deplete the primer layer surface in the exposed region of first polymer moiety to form the patterned chemical epitaxy template.. .
Asml Netherlands B.v.
01/08/15
20150010849

Polymerized ionic liquid block copolymers as battery membranes


The present invention is directed to compositions useful for use in separators for use in lithium ion batteries, and membranes, separators, and devices derived therefrom.. .
The Trustees Of The University Of Pennsylvania
01/08/15
20150010765

Polyolefin elastomer formulations


Disclosed are olefin block copolymer formulations comprising polyethylene and polypropylene that provide improved adhesion properties to polypropylene while maintaining desired flexural modulus characteristics and are particularly suited for overmolded goods.. .
Dow Global Technologies Llc
01/08/15
20150010747

Polypropylene-based resin composition and foam sheet


Provided is a polypropylene-based resin composition which gives uniform and fine cells and from which a foamed sheet and thermoform excellent in appearance, thermoformability, impact resistance, lightness, stiffness, heat resistance, heat insulating properties, oil resistance and the like can be produced. A polypropylene-based resin composition comprising (x) 5 to 99% by weight of a polypropylene resin having a structure with long chain branches, and (y) 1 to 95% by weight of a propylene-based block copolymer produced by sequential polymerization, which block copolymer comprises (y-1) a propylene (co)polymer and (y-2) a propylene-ethylene copolymer, said resin (x) having properties (x-i) to (x-iv) and said block copolymer (y) having properties (y-i) to (y-v), and the like..
Japan Polypropylene Corporation
01/08/15
20150010743

Films including a copolymer, articles and methods


A film including poly(vinylidene fluoride) and a block copolymer with at least two endblock polymeric units that are each derived from a first monoethylenically unsaturated monomer selected from a methacrylate, acrylate, styrene, or combination thereof; and at least one midblock polymeric unit is derived from a second monoethylenically unsaturated monomer selected from a methacrylate, acrylate, vinyl ester, or combination thereof, each endblock having a glass transition temperature of at least 50° c., and each midblock having a glass transition temperature no greater than 20° c. The film may further include poly(methyl methacrylate).
3innovative Properties Company
01/08/15
20150010490

Anti-adhesion polymer composition capable of supporting growth factor


The present invention relates to an anti-adhesion polymer composition capable of supporting growth factor, which effectively exhibits anti-adhesion function and, at the same time, has an excellent adhesive property so as to be able to easily and continuously adhere to a wound site, has antibacterial and hemostatic properties, and is composed of an injectable formulation suitable for use in minimally invasive surgery, laparoscopic surgery or the like. The anti-adhesion polymer composition capable of supporting growth factor comprises: 24-50 wt % of a polyethyleneglycol-polypropyleneglycol-polyethyleneglycol (peg-ppg-peg) block copolymer having a polyethyleneglycol (peg) content of 65-85 wt % and a molecular weight of 6,000-20,000 da; 0.03-5 wt % of gelatin; 0.03-5 wt % of chitosan; and distilled water..
Cg Bio Co., Ltd.
01/01/15
20150005605

Diffusion barriers and spacer membranes for enzymatic in-vivo sensors


An electrode system is disclosed for measuring a concentration or presence of an analyte under in-vivo conditions, where the electrode system includes at least one electrode with immobilized enzyme molecules and an improved diffusion barrier that controls diffusion of the analyte from body fluid surrounding the electrode system to the enzyme molecules. The diffusion barrier includes a hydrophilic polyurethane or a block copolymer having at least one hydrophilic block and at least one hydrophobic block.
Roche Diagnostics Operations, Inc.
01/01/15
20150005466

Ab block copolymer dispersants having an ink vehicle soluble block


The present disclosure provides a block copolymeric dispersant composition, wherein the dispersant composition includes an a block and a b block, wherein the a block is a segment having a block size of about 5 to about 18 units, is substantially free of hydroxyethylmethacrylate, and makes up at least 50% by weight of a monomer, having the following structure: ch2═crc(o)o(chr1ch2o)nr2, wherein r and r1 are h, or methyl; r2 is alkyl of 1-4 carbon atoms or phenyl; and n is about 1 to about 20; and the b block is a segment including an ionic monomer and at least one hydrophobic monomer; and wherein the dispersant is neutralized.. .
E I Du Pont De Nemours And Company
01/01/15
20150005436

Resealable thermoplastic elastomer articles


A thermoplastic elastomer (tpe) composition is provided which contains a blend of a hydrogenated styrenic block copolymer (sbc) having a number average molecular weight (mn) greater than about 200,000 daltons (da), a polypropylene, a mineral oil, and at least one filler. The composition has a hardness less than about 80 shore a and is resealable.
West Pharmaceutical Services, Inc.
01/01/15
20150004402

Intumescent coating composition comprising particulate poly(phenylene ether)


An intumescent coating composition having improved char yield, while maintaining its physical, mechanical, and esthetic properties comprises (a) particulate poly(phenylene ether), wherein the mean particle size of the poly(phenylene ether) is 1 to 100 micrometers; (b) a film-forming binder; (c) an acid source; (d) a blowing agent; and (e) optionally, a carbon source other than the particulate poly(phenylene ether); wherein polyolefins, homopolystyrenes, rubber-modified polystyrenes, styrene-containing copolymers, and hydrogenated and unhydrogenated block copolymers of an alkenyl aromatic compound and a conjugated diene are all absent from the composition. A method of forming the intumescent coating composition comprises: mixing the particulate poly(phenylene ether), the film-forming binder, the acid source, and the blowing agent, wherein the particulate poly(phenylene ether) has a glass transition temperature, and wherein the mixing is carried out at a temperature below the glass transition temperature of the particulate poly(phenylene ether)..
Sabic Innovative Plastics Ip B.v.
01/01/15
20150004394

Polypropylene-based resin composition and foam sheet


Provided is a polypropylene-based resin composition which gives uniform and fine cells and from which a foamed sheet and thermoform excellent in appearance, thermoformability, impact resistance, lightness, stiffness, heat resistance, heat insulating properties, oil resistance and the like can be produced. A polypropylene-based resin composition comprising (x) 5 to 99% by weight of a polypropylene resin having a structure with long chain branches, and (y) 1 to 95% by weight of a propylene-based block copolymer produced by sequential polymerization, which block copolymer comprises (y-1) a propylene (co)polymer and (y-2) a propylene-ethylene copolymer, said resin (x) having properties (x-i) to (x-iv) and said block copolymer (y) having properties (y-i) to (y-v), and the like..
Japan Polypropylene Corporation
01/01/15
20150004379

Preparation, purification and use of high-x diblock copolymers


This invention relates to the preparation and purification of high-x (“chi”) diblock copolymers. Such copolymers contain two segments (“blocks”) of polymers with significantly different interaction parameters and can be used in directed self-assembly applications..
E I Du Pont Nemours And Company
01/01/15
20150001567

Solid state light and forming


Optical assemblies comprising an optical device and a composition comprising a resin-linear organosiloxane block copolymer are disclosed. In some embodiments, the organosiloxane block copolymers has a weight average molecular weight of at least 20,000 g/mole and includes 40 to 90 mole percent disiloxy units of the formula [r12sio2/2] arranged in linear blocks each having an average of from 10 to 400 disiloxy units [r12sio2/2] per linear block, 10 to 60 mole percent trisiloxy units of the formula [r2—sio3/2] arranged in non-linear blocks each having a weight average molecular weight of at least 500 g/mol, and 0.5 to 25 mole percent silanol groups.
Dow Corning Torray Co., Ltd.
12/25/14
20140378617

Preparation of amphiphilic block polymers by controlled radical micellar polymerisation


The present invention relates to the preparation of block copolymers, which can be used in particular as rheology agents, suitable, inter alia, for oil extraction, comprising a step of radical micellar polymerisation wherein the following are brought into contact in an aqueous medium: —hydrophilic monomers, dissolved or dispersed in the aqueous medium; —hydrophobic monomers in the form of a micellar solution, i.e. Containing, in a dispersed state, micelles comprising these hydrophobic monomers; —at least one radical polymerisation initiator; and —at least one radical polymerisation control agent.
Rhodia Operations
12/25/14
20140378592

Neutral layer polymers, methods of manufacture thereof and articles comprising the same


Disclosed herein is a block copolymer comprising a first segment and a second segment that are covalently bonded to each other and that are chemically different from each other; where the first segment has a first surface free energy and where the second segment has a second surface free energy; and an additive copolymer; where the additive copolymer comprises a surface free energy reducing moiety where the surface free energy reducing moiety has a lower surface free energy than that of the first segment and the second segment; the additive copolymer further comprising one or more moieties having an affinity to the block copolymer; where the surface free energy reducing moiety is chemically different from the first segment and from the second segment; where the additive copolymer is not water miscible; and where the additive copolymer is not covalently bonded with the block copolymer.. .
Rohm And Haas Electronics Materials Llc
12/25/14
20140378566

Foam composition with olefin block copolymer gel particles


The present disclosure is directed to a composition and articles containing the composition. The composition comprises a foam and a plurality of gel particles dispersed in the foam.
Dow Global Technologies Llc
12/25/14
20140377965

Directed self-assembly (dsa) formulations used to form dsa-based lithography films


An illustrative dsa formulation disclosed herein includes a block copolymer material, a casting solvent and at least one plasticizer agent. An illustrative method disclosed herein includes depositing a liquid dsa formulation on a guide layer, performing a spin-coating process to form a dsa-based material layer comprised of the liquid dsa formulation above the guide layer, wherein the dsa-based material layer includes at least one plasticizing agent and, after performing the spin-coating process, performing at least one heating process on the dsa-based material layer while at least some of the plasticizing agent remains in the dsa-based material layer so as to enable phase separation of block copolymer materials..
Globalfoundries Inc.
12/25/14
20140377956

Pattern forming method


According to one embodiment, first, on a process object, a hydrophilic guide pattern including a first hole forming pattern having a first hole diameter and a second hole forming pattern having a second hole diameter is formed. Then, above the guide pattern, a frame pattern having a first opening region in a forming region of a plurality of the first hole forming patterns and a second opening region in a forming region of a plurality of the second hole forming patterns is formed.
Kabushiki Kaisha Toshiba
12/25/14
20140377576

Adhesion promoter composition for polyolefin substrate


The present disclosure is directed to an adhesion promoter composition comprising of a solvent and a functionalized olefin block copolymer, and articles with the adhesion promoter composition applied thereto. The adhesion promoter composition can be halogen-free..
Dow Global Technologies Llc
12/25/14
20140377535

Blends of block copolymer and acrylic adhesives


Pressure sensitive adhesive compositions containing 92 to 99.9 parts of a block copolymer adhesive composition and 0.1 to less than 8 parts of an acrylic adhesive composition are described. Tapes including such adhesives, and methods of making such tapes are also described..
3m Innovative Properties Company
12/25/14
20140377533

Blends of block copolymer and acrylic adhesives


Pressure sensitive adhesive compositions containing 92 to 99.9 parts of a block copolymer adhesive composition and 0.1 to less than 8 parts of an acrylic adhesive composition are described. Tapes including such adhesives, and methods of making such tapes are also described..
3m Innovative Properties Company
12/25/14
20140377518

Orientation control layer polymers, methods of manufacture thereof and articles comprising the same


Disclosed herein is a method comprising disposing a first composition comprising a first block copolymer upon a substrate; where the first block copolymer comprises a first segment and a second segment that are covalently bonded to each other and that are chemically different from each other; where the first segment has a first surface free energy and where the second segment has a second surface free energy; and disposing a second composition comprising an second copolymer upon a free surface of the first block copolymer; where the second copolymer comprises a surface free energy reducing moiety; where the surface free energy reducing moiety has a lower surface free energy than the first surface free energy and the second surface free energy; the second copolymer further comprising one or more moieties having an affinity to the first block copolymer; where the surface free energy reducing moiety is chemically different from the first segment and from the second segment.. .
Rohm And Haas Electronic Materials Llc
12/25/14
20140377511

Methods for sealing the edges of multi-layer articles


Methods for preparing edge-sealed multi-layer film articles include applying a sealant composition to a multi-layer film article that includes at least one polymeric film layer, and permitting the sealant composition to dry to form an edge-sealed article. The sealant composition includes at least one solvent capable of softening, penetrating or dissolving the polymeric film layer of the multi-layer film article, and at least one polymer dissolved in the solvent.
3m Innovative Properties Company
12/25/14
20140377481

Terpene/isoolefin copolymers having substantially heterogeneous compositional distribution and displaying thermoplastic elastomeric properties


Copolymers having a substantially heterogeneous composition distribution and strong uv absorption comprise the direct reaction product of an isoolefin and at least one terpene having the molecular formulae of (c5h8)n where n is equal to or greater than two, and optionally additional monomers. More specifically, the invention relates to copolymers of isobutylene and alloocimene that exhibit thermoplastic elastomeric properties and exhibit strong filler interaction.
University Of Akron
12/25/14
20140377465

Neutral layer polymers, methods of manufacture thereof and articles comprising the same


Disclosed herein is a block copolymer comprising a first segment and a second segment that are covalently bonded to each other and that are chemically different from each other; where the first segment has a first surface free energy and where the second segment has a second surface free energy; and an additive copolymer; where the additive copolymer comprises a surface free energy reducing moiety where the surface free energy reducing moiety has a lower surface free energy than that of the first segment and the second segment; the additive copolymer further comprising one or more moieties having an affinity to the block copolymer; where the surface free energy reducing moiety is chemically different from the first segment and from the second segment; where the additive copolymer is not water miscible; and where the additive copolymer is not covalently bonded with the block copolymer.. .
Dow Global Technologies Llc
12/25/14
20140377193

Oral care compositions


Oral care compositions comprising a crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide, together with an ethylene oxide-propylene oxide block copolymer. Some embodiments further comprise a calcium abrasive, e.g.
Colgate-palmolive Company
12/25/14
20140375934

Multi-block copolymer


Provided are a multi-block copolymer, a pressure-sensitive adhesive composition, a method of preparing a multi-block copolymer, a pressure-sensitive adhesive polarizing plate, and a liquid crystal display device. The pressure-sensitive adhesive composition including the multi-block copolymer may have excellent durability regardless of a temperature and/or humidity.
Lg Chem, Ltd.
12/25/14
20140374257

Method for melt processing sulfonated block copolymers and articles comprising optionally amine modified sulfonated block copolymers


Wherein het together with the nitrogen to which it is bonded represents an optionally substituted 5- or 6-membered hetero cycle.. .
12/18/14
20140371698

Sound absorbing non-woven material, sound absorbing multilayer film, and laminates made thereof


An ostomy appliance includes a sound absorbing film comprising a triblock copolymer including polystyrene blocks and vinyl-bond rich rubber mid-block, and a sound absorbing non-woven material comprising the triblock copolymer including polystyrene blocks and vinyl-bond rich rubber mid-block. The ostomy appliance has improved sound absorbing properties to insulate flatulence noise..
Hollister Incorporated
12/18/14
20140371377

High flow, hydrogenated styrene-butadiene-styrene block copolymers and applications


The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hsbs) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hsbss) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min at 230° c. Under 2.16 kg mass according to astm d1238.
Kraton Polymers Us Llc
12/18/14
20140371376

Adhesive paste with increased temperature stability and use thereof for an adhesive tape


The invention relates to an adhesive paste containing at least • a vinyl aromatic block copolymer • at least one adhesive resin • a second copolymer based on a vinyl aromatic and on an unsaturated anhydride, wherein the vinyl aromatic content is preferably at least 50 mol %.. .
Tesa Se
12/18/14
20140371317

Silicone resin emulsions


The present disclosure relates to compositions comprising: i) an aqueous silicone emulsion comprising; a) 0.5 wt % to 95 wt % of a silicone gum, resin, or psa, b) 0.1 to 90 wt % of an ethylene oxide/propylene oxide block copolymer, and sufficient amount of water to sum all ingredients of the silicone gum emulsion to 100 weight percent, ii) a healthcare active, and iii) an optional enhancer(s).. .
Dow Corning Corporation
12/18/14
20140370718

Etch process for reducing directed self assembly pattern defectivity using direct current positioning


A method for preparing a patterned directed self-assembly layer for reducing directed self-assembly pattern defectivity using direct current superpositioning is provided. A substrate having a block copolymer layer overlying a first intermediate layer, said block copolymer layer comprising a first phase-separated polymer defining a first pattern and a second phase-separated polymer defining a second pattern in said block copolymer layer is provided.
Tokyo Electron Limited
12/18/14
20140370717

Etch process for reducing directed self assembly pattern defectivity


Provided is a method for preparing a patterned directed self-assembly layer, comprising: providing a substrate having a block copolymer layer comprising a first phase-separated polymer defining a first pattern in the block copolymer layer and a second phase-separated polymer defining a second pattern in the block copolymer layer; and performing an etching process to selectively remove the second phase-separated polymer while leaving behind the first pattern of the first phase-separated polymer on the surface of the substrate, the etching process being performed at a substrate temperature less than or equal to about 20 degrees c. The method further comprises providing a substrate holder for supporting the substrate, the substrate holder having a first temperature control element for controlling a first temperature at a central region and second temperature control element at an edge region of the substrate and setting a target value for the first and the second temperature..
Tokyo Electron Limited
12/18/14
20140370712

Methods of forming a pattern and devices formed by the same


The inventive concepts provide methods of forming a pattern. In the method, a block copolymer layer may be formed on a neutral layer having an uneven structure and then phase separation is induced.
12/18/14
20140370442

Block copolymers and lithographic patterning using same


Block copolymers and methods of making patterns of organic thin films using the block copolymers. The block copolymers comprise a fluorinated block.
Cornell University
12/18/14
20140370243

Polydiorganosiloxane polyoxamide copolymers


Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups.
3m Innovative Properties Company
12/18/14
20140370188

Absorptive polarizer and production method therefor


The present invention relates to an absorptive polarizer and a method for manufacturing the same, and more particularly, to an absorptive polarizer which includes a nano-composite layer in which nanoparticles including a light absorptive element or an oxide or compound thereof are selectively contained in a block copolymer having a first block and a second block which are separately aligned therein, thereby exhibiting excellent durability even when it is exposed under hot and humid environments for a long time, and having polarization degree and transmittance substantially equal to or greater than those of any typical absorptive polarizer manufactured through drawing, as well as a method of easily preparing such an absorptive polarizer as described above at low production costs.. .
Dongwoo Fine-chem Co., Ltd.
12/18/14
20140370073

Biologically degradable compositions for medical applications


A medical article is disclosed, comprising a biologically degradable ab block copolymer and a biologically degradable polymer that is capable, at equilibrium and at room temperature, of absorbing less than about 5 mass % water.. .
Abbott Cardiovascular Systems Inc.
12/18/14
20140367144

Halogen-free flame-retardant resin composition, and wire and cable using the same


A halogen-free flame-retardant resin composition includes a base polymer including not less than 5 mass % of an ethylene-α-olefin block copolymer having a melting point of not less than 118° c. And a glass transition temperature (tg) of not more than −40° c., and a metal hydroxide added in an amount of 50 to 250 parts by mass per 100 parts by mass of the base polymer..
Hitachi Metals, Ltd.
12/11/14
20140364788

Adhesive interface bandage


Said adherent interface dressing comprises a non-adherent cohesive gel formed from a hydrophobic elastomeric matrix consisting of a styrene-(ethylene/butylene)-styrene or styrene-(ethylene/propylene)-styrene triblock elastomer optionally associated with a styrene-(ethylene/butylene) or styrene-(ethylene/propylene) diblock copolymer; said elastomer being highly plasticized by means of a mineral oil, and containing dispersed therein a small quantity of hydrophilic particles of a hydrocolloid; and a flexible open-mesh fabric, said fabric comprising threads coated with the non-adherent cohesive gel in such a way as to leave the meshes substantially unsealed, characterized in that the fabric is a heat-set knit with weft yarns, said yarns being continuous multifilament yarns with non-elastic filaments, whereof the extensibility in the transverse direction measured in accordance with standard en 13726-4 is between 0.01 and 0.5 n/cm.. .
12/11/14
20140364567

Styrene-siloxane triblock copolymers as membranes for selective transport of alcohols and other organic compounds in aqueous mixtures


The present disclosure relates to high molecular weight polystyrene-polydialkylsiloxane-polystyrene (“sds”) triblock copolymer compositions and methods of separating one or more organic compounds from an aqueous solution using membranes derived from sds triblock copolymers. The methods may be used to separate the one or more organic compounds from an aqueous solution produced in a fermentation process.
12/11/14
20140364566

Scale-up process of bifunctionalized triblock copolymers with secondary and tertiary amines, with application in dewatering and desalting of heavy crude oils


A chemical synthesis process is provided for the functionalization of monodispersed triblock copolymer (poew-popy-poew) with secondary or tertiary amines at a semi-industrial level in glass reactors having a capacity between 1 l and 100 l. The process includes two stages where the first stage uses an alkylsulfonyl or arylsulfonyl chloride to obtain better leaving groups, and the second stage is the nucleophilic substitution with secondary or tertiary amines, to obtain the bifunctionalized triblock copolymers.
12/11/14
20140364555

High flow, hydrogenated styrene-butadiene-styrene block copolymers and applications


The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hsbs) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hsbss) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min at 230° c. Under 2.16 kg mass according to astm d1238.
12/11/14
20140364532

High flow, hydrogenated styrene-butadiene-styrene block copolymers and applications


The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hsbs) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hsbss) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min at 230° c. Under 2.16 kg mass according to astm d1238.
12/11/14
20140363572

Composite membrane


A method of making a composite membrane comprising the steps of forming a discriminating layer upon a surface of a porous support by sequentially applying immiscible coating solutions upon the support, wherein one coating solution comprises a crosslinking agent and another coating solution comprises a block copolymer, and the block copolymer comprises sacrificial segments and durable segments including reactive pendent groups which react with the crosslinking agent and form a crosslinked matrix comprising micro-domains of the sacrificial segments, and removing at least a portion of the sacrificial segments to yield pores.. .
12/11/14
20140363072

Self-assemblable polymer and methods for use in lithography


A method and system to analyze various dimensional parameters of a structure, such as a self-assembled block copolymer structure whether formed by graphoepitaxy or chemical epitaxy. The method involves image processing including median filtering and feature detection to determine critical dimension information, and optionally the use of a hough transform to find periodicity values and to determine placement errors..
12/11/14
20140360975

Poly(cyclohexylethylene)-polyacrylate block copolymers, methods of manufacture thereof and articles comprising the same


Disclosed herein is a block copolymer comprising a first block derived from a cyclo-alkyl vinyl monomer, a hydrogenated vinyl aromatic polymer or a hydrogenated vinyl pyridine polymers; and a second block derived from an acrylate monomer. Disclosed herein too is a method comprising reacting a first block derived from a cyclo-alkyl vinyl monomer, a hydrogenated vinyl aromatic polymer or a hydrogenated vinyl pyridine polymers with an initiator to form a macroinitiator; and polymerizing a second block onto the first block to form a block copolymer; where the second block is derived by polymerizing an acrylate monomer; and where the block copolymer has a chi parameter of greater than or equal to about 0.05, when measured at a temperature of 200° c.
12/11/14
20140360347

High density unidirectional fabric for soft ballistics applications


A ballistic article is comprised of high density fibers, where the linear mass density of the fibers is greater than 2000 dtex as measured by astm d1907 and the fibers in each layer have a total areal density greater than 100 g/m2. In one example, the ballistic article has two sheets comprising para-aramid fibers in a styrene and isoprene block copolymer matrix material..
12/04/14
20140357827

Curable compositions of resin-linear organosiloxane block copolymers


Curable compositions of “resin-linear” organosiloxane block copolymers comprising a superbase catalyst are disclosed. The addition of a superbase catalyst to compositions of certain resin-linear organosiloxane block copolymers results in curable compositions having faster cure rates, and improved mechanical strength and/or thermal stability over similar compositions without the superbase catalyst.
12/04/14
20140357773

Silicone resin emulsions


A process for preparing silicone emulsions is disclosed based on using an ethylene oxide/propylene oxide block copolymer as the emulsifier. The silicone emulsions comprise: a) 0.5 wt % to 95 wt % of a silicone resin or pressure sensitive adhesive (psa), b) 0.1 to 90 wt % of a ethylene oxide/propylene oxide block copolymer, and sufficient amount of water to sum to 100 weight percent.
12/04/14
20140357759

Rubber composition, rubber elastomer, tire and block copolymer


A rubber composition by which a rubber elastic body having both of excellent low rolling resistance and wet skid resistance and also having excellent mechanical strength and wear resistance can be obtained, a rubber elastic body, a tire, and a block copolymer are provided. The rubber composition of the present invention comprises a block copolymer (a) comprising a block (a-1) of a conjugate diene and an aromatic vinyl and a block (a-2) of a conjugate diene or the diene and an aromatic vinyl, a specific polymer (b) other than the copolymer, and a filler (c), wherein the block copolymer (a) has a specific functional group; the block copolymer (a) has two glass transition temperatures separated from each other by 5° c.
12/04/14
20140357083

Directed block copolymer self-assembly patterns for advanced photolithography applications


Embodiments of methods and an apparatus for utilizing a directed self-assembly (dsa) process on block copolymers (bcps) to form a defect-free photoresist layer for feature transfer onto a substrate are provided. In one embodiment, a method for performing a dry development process includes transferring a substrate having a layer of block copolymers disposed thereon into an etching processing chamber, wherein at least a first type and a second type of polymers comprising the block copolymers are aggregated into a first group of regions and a second group of regions on the substrate, supplying an etching gas mixture including at least a carbon containing gas into the etching processing chamber, and predominately etching the second type of the polymers disposed on the second groups of regions on the substrate in the presence of the etching gas mixture..
12/04/14
20140356405

Antimicrobial constructs


The invention is based on the recognition that known antimicrobial compounds, such as nisin or other lantibiotics, can be made to form a long lasting antimicrobial surface coating by linking the peptide with a block polymer, such as pluronic® f108 or an end group activated polymer (egap) in a manner to form a flexible tether and/or entrap the peptide. The entrapped peptide provides antimicrobial action by early release from entrapment while the tethered peptide provides longer lasting antimicrobial protection.
12/04/14
20140356315

Triblock copolymer and use therefor


Each cnr is independently a polymer segment having a repeating unit containing as part of a pendant group a cyclic nitroxide radical that binds to the polymer main chain via a linking group having at least one imino group or ether bond, and peg is a segment containing poly(ethylene glycol).. .
11/27/14
20140350189

Catalyst composition comprising shuttling agent for tactic/ atactic multi-block copolymer formation


(c) a chain shuttling agent.. .
11/27/14
20140350164

Block copolymer composition for hot melt adhesive


Provided is a block copolymer composition for a hot melt adhesive, which can provide a hot melt adhesive composition having excellent softening agent retainability, heat resistance and transparency. Disclosed is a block copolymer composition for a hot melt adhesive, comprising a block copolymer a and a block copolymer b each having a particular structure, characterized in that the aromatic vinyl monomer unit content of the block copolymer a is 30% to 50% by weight; the aromatic vinyl monomer unit content of the block copolymer b is 15% to 25% by weight; a content of the aromatic vinyl monomer units relative to all polymer components of the block copolymer composition is 18% to 45% by weight; the weight ratio (a/b) of the block copolymer a with respect to the block copolymer b is 20/80 to 80/20; and the ratio (mwa/mwb) of the weight average molecular weight of the block copolymer a (mwa) with respect to the weight average molecular weight of the block copolymer b (mwb) is 0.65 to 1.5..
11/27/14
20140350063

Biotherapeutics for the treatment of infectious diseases


An occlusive dressing made with an elastomeric gel and one or more active agents is described. The elastomeric gel contains a plasticizing oil phase and a block copolymer agent.


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Block Copolymer topics: Block Copolymer, Calcium Carbonate, Monovalent, Line Array, Semiconductor, Pyrrolidone, Hydrogen Peroxide, Propylene Oxide, Ethylene Oxide, Organosiloxane

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