This page is updated frequently with new Block Copolymer-related patent applications.
|Scattering layer and preparing the same, and organic light-emitting diode display device comprising the same|
Provided are a scattering layer and a method for preparing the same, and an organic light-emitting diode display device prepared thereby. The scattering layer is formed by coating a block copolymer solution of a polybutadiene-polystyrene onto a substrate to form a film, and then subjecting the film to treatment of curing and annealing.
Boe Technology Group Co., Ltd.
|Polymer composition comprising poly-lactide-polybutadiene based block copolymer|
The present invention also relates to a process for preparing said composition. The present invention also relates to an article comprising said composition..
|Poly(beta-methyl-delta-valerolactone) block polymers|
Block copolymers include a poly β-methyl-δ-valerolactone (pmvl) block. The pmvl blocks can be formed from biosynthesized β-methyl-δ-valero lactone (mvl).
Regents Of The University Of Minnesota
|Films and articles made with thermoplastic block copolymers|
The present invention relates to printing blankets, pipe liners, conveyor belts, inflatable articles, collapsible containers, protective clothing, and other types of coated fabrics that are manufactured with a thermoplastic block copolymer (tbc). This tbc can be a thermoplastic polyurethane (tpu), a copolyester (cope), a copolyamide (copa) or a polyurethaneurea (tpuu).
Lubrizol Advanced Materials, Inc.
|Block copolymer complex coacervate core micelles for enzymatic catalysis in organic solvent|
Disclosed are complex coacervate core micelles comprising an enzyme capable of hydrolyzing organophosphorus compounds, such as nerve agents, and, for example, their use in remediation or decontamination of stockpiles of chemical weapons.. .
Massachusetts Institute Of Technology
|Film for liquid packaging containers and liquid packaging container|
A film for a liquid packaging container, comprising at least one of a layer containing a resin composition (x) containing a polypropylene resin (a) and at least one of a hydrogenated block copolymer (b), the hydrogenated block copolymer (b) being a hydrogenated product of a block copolymer containing a polymer block (a) mainly containing an aromatic vinyl compound unit, and a polymer block (b) mainly containing an isoprene (ip) unit, a butadiene (bd) unit, or isoprene (ip) and butadiene (bd) units, in the resin composition (x), the hydrogenated block copolymer (b) having a phase separation structure having formed therein both (i) an island phase having a long axis of 1 μm or more, or a bicontinuous structure, and (ii) an island phase having a long axis of 300 nm or less, and in the resin composition (x), the mass ratio ((a)/((a)+(b))) of the polypropylene resin (a) and the hydrogenated block copolymer (b) being from 61/100 to 95/100.. .
Kuraray Co., Ltd.
|Multilayer film including odor barrier layer having sound dampening properties|
A multilayer film including an odor barrier layer having sound dampening properties is provided. The odor barrier layer is formed from a polyamide modified with a functionalized vinyl-bond rich triblock copolymer..
|Oil recovery aid|
Compositions for increasing corn oil recovery and embodiments of methods for using the composition for corn oil separation are described. The composition(s) incorporate an admixture that includes a polymer selected from a polyglycol ester, a polyethyleneoxide-polypropyleneoxide block copolymer, a poloxamine, or a mixture thereof.
Phibro Animal Health Corp.
|Polylactide based compositions|
Embodiments of polylactide based compositions are disclosed herein. The compositions may comprise at least one first polymer selected from polylactide-polybutadiene (pla-pb) block copolymer, polylactide-urethane-polybutadiene block copolymer, or a mixture thereof; and at least one second polymer selected from polylactide, polylactide-urethane, or a mixture thereof.
Total Research & Technology Feluy
|Block copolymer and associated photoresist composition and forming an electronic device|
A block copolymer useful in electron beam and extreme ultraviolet photolithography includes a first block with units derived from a base-solubility-enhancing monomer and an out-of-band absorbing monomer, and a second block having a low surface energy. Repeat units derived from the out-of-ban absorbing monomer allow the copolymer to absorb significantly in the wavelength range 150 to 400 nanometers.
Rohm And Haas Electronic Materials Llc
Amphiphilic block copolymer; composition, membrane, and separation module thereof; and methods of making same
An amphiphilic block copolymer comprises a poly(phenylene ether) block or a poly(phenylene ether) copolymer block and a hydrophilic block or graft. A method of making the amphiphilic block copolymer comprises polymerization of a hydrophilic ethylenically unsaturated monomer in the presence of poly(phenylene ether) or a poly(phenylene ether) copolymer to make the amphiphilic block copolymer.
Sabic Global Technologies B.v.
Hydrogenated block copolymer having alkoxysilyl group and use therefor
Provided are: an alkoxysilyl group-containing hydrogenated block copolymer produced by introducing an alkoxysilyl group into a hydrogenated block copolymer that is obtained by hydrogenating 90% or more of unsaturated bonds of a block copolymer that includes at least two polymer blocks [a] and at least one polymer block [b], the polymer block [a] including a repeating unit derived from an aromatic vinyl compound as a main component, the polymer block [b] including a repeating unit derived from a linear conjugated diene compound as a main component, and a ratio (wa:wb) of a weight fraction wa of the polymer block [a] in the block copolymer to a weight fraction wb of the polymer block [b] in the block copolymer being 20:80 to 60:40; a method for producing the same; a solar cell element encapsulating material; a sheet; a laminated sheet; a multilayer sheet; and a method for encapsulating a solar cell element. The alkoxysilyl group-containing hydrogenated block copolymer exhibits low hygroscopicity, a low water vapor permeability, transparency, weatherability, and flexibility, maintains excellent adhesion to glass even when exposed to a high-temperature/high-humidity environment for a long time, and can encapsulate a solar cell element without applying a special waterproof treatment..
Thermoplastic elastomer composition, stopper for medical container, and medical container
This thermoplastic elastomer composition comprises: 100 parts by mass of a hydrogenated block copolymer (a); from 3 to 50 parts by mass of a polypropylene-based resin (b), from 5 to 100 parts by mass of a polyphenylene ether resin (c), and from 50 to 200 parts by mass of a non-aromatic softener (d), the hydrogenated block copolymer (a) is able to be formed by hydrogenating a block copolymer that comprises at least one polymer block a comprising a vinyl aromatic hydrocarbon compound monomer unit as a primary component and at least one polymer block b comprising a conjugated diene compound monomer unit as a primary component, and a weight average molecular weight of the hydrogenated block copolymer (a) is from 100,000 to 350,000.. .
Asahi Kasei Kabushiki Kaisha
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
An aqueous suspension concentrate containing: (a) a first active ingredient comprising one or more triazolopyrimidine, triazolone, pyrazole or oxazole herbicides; (b) optionally, a second active ingredient, (c) a dispersant comprising a comb polymer; (d) a nonionic, alkoxylated surfactant or a block copolymer surfactant, and (e) optionally, a re-dispersing agent, wherein said aqueous suspension concentrate exhibits an acidic ph within the range from about greater than about 2 to about 4.. .
Neutral hard mask and its application to graphoepitaxy-based directed self-assembly (dsa) patterning
A material stack is formed on the surface of a semiconductor substrate. The top layer of the material stack comprises at least an organic planarization layer.
International Business Machines Corporation
Misfit p-type transparent conductive oxide (tco) films, methods and applications
A p-type transparent conductive oxide (tco) mixed metal oxide material layer formed upon a substrate has a formula m1xm2yoz generally, caxcoyoz more specifically, and ca3co4o9 most specifically. Embodiments provide that the p-type tco mixed metal oxide material may be formed absent an epitaxial crystalline relationship with respect to the substrate while using a sol-gel synthesis method that uses a chelating polymer material and not a block copolymer material..
Method of fabricating a bpm template using hierarchical bcp density patterns
The embodiments disclose a method including patterning a template substrate to have different densities using hierarchical block copolymer density patterns in different zones including a first pattern and a second pattern, using a first directed self-assembly to pattern a first zone in the substrate using a first block copolymer material, and using a second directed self-assembly to pattern a second zone in the substrate using a second block copolymer material.. .
Seagate Technology Llc
Precursor polyelectrolyte complexes compositions
The invention relates to compositions and methods of treatment employing compositions comprising polyelectrolyte complexes. The compositions include a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge and a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge.
The Clorox Company
Hot-melt pressure-sensitive adhesive
To provide a hot-melt pressure-sensitive adhesive which is easily coated, has a weak odor, high stability with time, and is also excellent in adhesive force retention performance from a low temperature range to a high temperature range. A hot-melt pressure-sensitive adhesive comprising: an amorphous polystyrene resin (a) having a number-average molecular weight of 50,000 or more; and a thermoplastic block copolymer (b) which is a copolymer of vinyl-based aromatic hydrocarbons and conjugated diene compounds..
Henkel Ag & Co. Kgaa
Multiblock copolymer films, methods of making same, and uses thereof
A method for forming an isoporous graded film comprising multiblock copolymers and isoporous graded films. The films have a surface layer and a bulk layer.
Process for the preparation of an aqueous emulsion of a midblock sulfonated block copolymer
The present invention concerns aqueous emulsions and a process for preparing aqueous emulsions of a midblock sulfonated styrenic block copolymer comprising at least two non-sulfonated polymer end-blocks a and at least one sulfonated block b, comprising the steps of providing a cement of a midblock sulfonated styrenic block copolymer in the apolar solvent, mixing the cement with a co-solvent to form a mixture, emulsifying the mixture in the absence of a surfactant with water to produce an emulsion, and removing the hydrocarbon solvent and any optional co-solvent from the emulsion to produce the aqueous emulsion. The resulting emulsion of the midblock sulfonated styrenic block copolymer has relatively small particle diameters..
Kraton Polymers U.s. Llc
Process for the preparation of an aqueous emulsion of a midblock sulfonated block copolymer
The present invention provides an aqueous emulsion and a process for preparing an aqueous emulsion of a midblock sulfonated styrenic block copolymer comprising at least two non-sulfonated polymer end-blocks a and at least one 5 sulfonated block b comprising the steps of providing a cement of a midblock sulfonated styrenic block copolymer in a non-polar solvent wherein the non-polar solvent is a hydrocarbon compound comprising from 5 to 12 carbon atoms with a boiling point of less than 100 degree celsius or mixture of such compounds, mixing the cement with a co-solvent to form a mixture, emulsifying the mixture optionally in the 10 presence of an emulsifier with water to produce an emulsion, and removing the hydrocarbon solvent and optionally the co-solvent from the emulsion to produce the aqueous emulsion. The resulting emulsion of the midblock sulfonated styrenic block copolymer has relatively small particle diameters..
Kraton Polymers U.s. Llc
Active-light-ray-curable inkjet white ink and image forming method
Through the active-light-ray-curable inkjet white ink according to the present invention, the ink including a pigment, a dispersing agent, a wax, a photopolymerizable compound, and a photopolymerization initiator, and being capable of a sol-gel phase transition by a temperature change, the pigment including titanium dioxide surface-coated with alumina, the content of the titanium dioxide being 10% by mass to 15% by mass of the total mass of the ink, the ink including sodium ions in a mass ratio of 200 ppm or lower with respect to the pigment, and the dispersing agent including a comb-shaped block copolymer having a tertiary amine group, even when titanium dioxide is used as the pigment, the viscosity of the ink can be restrained from increasing, luster equivalent to that of another color is obtained, and clogging of a recording head for ink discharge is reduced.. .
Konica Minolta, Inc.
Brush block copolymer electrolytes and electrocatalyst compositions
Provided herein are copolymer electrolytes and electrocatalyst platforms, including brush block copolymers, triblock brush copolymers and pentablock brush copolymers. The copolymers described have beneficial chemical, physical and electrical properties including high ionic conductivity and mechanical strength.
California Institute Of Technology
Highly permeable double-skinned forward osmosis membrane for anti-fouling in the emulsified oil-water separation process
A double-skinned membrane that includes a polymeric support having a thickness of 20 to 500 nm, a first surface and a second surface opposed to each other; a polymeric thin film layer having a thickness of 1 to 1000 nm and covering the first surface; and a sulfonated pentablock copolymer layer having a thickness of 1 to 1000 nm and covering the second surface. Also disclosed is a method of preparing the above-described double-skinned membrane..
Kraton Polymers U.s. Llc
Method of forming graphene nanopattern, graphene-containing device, and manufacturing the graphene-containing device
Methods of forming a graphene nanopattern, graphene-containing devices, and methods of manufacturing the graphene-containing devices are provided. A method of forming the graphene nanopattern may include forming a graphene layer on a substrate, forming a block copolymer layer on the graphene layer and a region of the substrate exposed on at least one side of the graphene layer, forming a mask pattern from the block copolymer layer by removing one of a plurality of first region and a plurality of second regions of the block copolymer, and patterning the graphene layer in a nanoscale by using the mask pattern as an etching mask.
Samsung Electronics Co., Ltd.
Gel cleaning compostion
Cleaning compositions in the form of a self-adhesive aqueous gel are provided. The aqueous gel may be a rigid, “hard” aqueous gel that resists deformation of its shape.
S.c. Johnson & Son, Inc.
Composition and use thereof, oil-based drilling fluid and a raising shearing force of oil-based drilling fluid
A composition and use thereof are disclosed herein. The composition comprises at least two selected from the group of amphiphilic block copolymer, polyurethane and acidic ionic compound.
Sinopec Research Institute Of Petroleum Engineering
Fluorinated acrylate block copolymers with low dynamic surface tension
Or any mixture thereof.. .
Block copolymer composition, production method therefor, and film
Ar1b-db-ar2b (b). .
Block copolymer comprising catechol ,segment and inorganic nanoparticles coated by said block copolymer, as well as producing block copolymer comprising catechol, segment and producing inorganic nanoparticles coated by said block copolymer
A block copolymer including a catechol segment represented by formula (1).. .
The present application provides the block copolymers and their application. The block copolymer has an excellent self assembling property and phase separation and various required functions can be freely applied thereto as necessary..
Lg Chem, Ltd.
Multilayer film, methods of manufacture thereof and articles comprising the same
Disclosed herein is a multilayer film comprising a first layer and a second layer; and a tie layer; where the tie layer comprises a crystalline block composite and where the tie layer is disposed between the first layer and the second layer; the first layer being disposed on a first surface of the tie layer; the second layer being disposed on a second surface of the tie layer; where the second surface is opposedly disposed to the first surface; where the crystalline block composite comprises a crystalline ethylene based polymer, a crystalline alpha-olefin based polymer and a block copolymer comprising a crystalline ethylene block and a crystalline alpha-olefin block.. .
Dow Global Technologies Llc
Multi-polymer compositions for transdermal drug delivery
Multi-polymer compositions for the transdermal delivery of drugs, such as amine-functional drugs, in a flexible, finite form are described. The compositions comprise a polymer matrix that includes a drug or a pharmaceutically acceptable salt thereof and a polymer matrix comprising acrylic polymer(s), polyisobutylene polymer(s) and styrene-isoprene-styrene block copolymer(s).
Noven Pharmaceuticals, Inc.
Compositions and methods relating to reduced mucoadhesion
The present invention generally relates to reducing the mucoadhesive properties of a particle. In some embodiments, the particle is coated with and/or associated with a (poly(ethylene glycol))-(poly(propylene oxide))-(poly(ethylene glycol)) triblock copolymer.
The Johns Hopkins University
Method for reducing of the appearance of fine lines and wrinkles on the skin with a concentrated polymeric composition
The present invention provides a method for reducing the appearance of wrinkles on skin cosmetic comprising the steps of providing instructions to a user, said instructions directing said user to apply the composition to the periphery of a user's face and not directly to said wrinkles, wherein said composition comprises from about 20 wt. % to about 80 wt.
Elc Management Llc
Fixed-array anisotropic conductive film using conductive particles with block copolymer coating
Structures and manufacturing processes of an acf array and more particularly a non-random particles are transferred to the array of microcavities of predetermined configuration, shape and dimension. The manufacturing process includes fluidic filling of conductive particles surface-treated with a block copolymer composition onto a substrate or carrier web comprising a predetermined array of microcavities.
Trillion Science, Inc.
Electrophoretic dispersion liquid, manufacturing electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device, and electronic apparatus
According to the invention, an electrophoretic dispersion liquid includes at least one type of an electrophoretic particle, and a dispersion medium, in which the content of transition metal of group 8 elements derived from a catalyst which is used to generate at least one of a block copolymer (a particle surface treatment agent) used to form the electrophoretic particle and the dispersion medium is in a range of greater than 0 ppm to equal to or less than 2 ppm in the electrophoretic dispersion liquid.. .
Seiko Epson Corporation
Lubricating member for razor cartridges
The invention relates to a lubricating member for a razor cartridge comprising a water soluble polymer and a silicone polyether block copolymer comprising from 1 to 50%, by weight of polyethylene oxide, from 20% to 90%, polypropylene oxide and from 1% to 20%, by weight of silicone for improved lubrication.. .
The Gillette Company
Lubricating members for razor cartridges
The invention relates to a lubricating member for a razor cartridge comprising a lipophilic structurant and a silicone polyether block copolymer and optionally a liquid phase, which can be manufactured in a simple one batch process without thermal degradation and exhibiting improved lubricating and skin care properties over a sustained period.. .
The Gillette Company
Block copolymer composition and adhesive composition
A block copolymer composition including: 10% by mass or more and 90% by mass or less of a component (a), and 10% by mass or more and 90% by mass or less of a component (b), wherein the component (a) is a block copolymer containing a polymer block (a) primarily including a vinyl aromatic monomer unit and a polymer block (b) primarily including a conjugated diene monomer unit, wherein the block copolymer has a weight average molecular weight of 30,000 or higher and 150,000 or lower; and the component (b) is a block copolymer containing a polymer block (a) primarily including a vinyl aromatic monomer unit and a polymer block (b) primarily including a conjugated diene monomer unit.. .
Japan Elastomer Co., Ltd.
Puroduction readily dispersible cellulose composition, readily dispersible cellulose composition, cellulose dispersion resin composition, and prodaction water-based dispersant for cellulose
An object of the present invention is to provide a technology of dispersing cellulose readily in a hydrophobic substance such as a resin by treating cellulose being a hydrophilic substance in a system that contains water as a main medium with a polymer dispersant, which has been developed for dispersing a fine and hydrophobic substance such as a pigment, in a simple and efficient manner without conducting surface modification of nanocellulose or other treatments. The object is solved by a process for producing a readily dispersible cellulose composition, the process including dissolving a polymer dispersant having a block copolymer structure having a resin-affinitive segment a and a cellulose-adsorptive segment b in a hydrophilic organic solvent solution, adding a surface active agent to the resultant solution, thereafter adding water to the resultant mixture to prepare an aqueous dispersion treatment agent containing the polymer dispersant, and adding the obtained aqueous dispersion treatment agent to cellulose in a water-containing state or in a dry state, thereby obtaining a readily dispersible cellulose composition.
Process for the nanostructuring of a block copolymer film using a nonstructured block copolymer based on styrene and on methyl methacrylate, and nanostructured block copolymer film
The invention relates to a block copolymer film nanostructured in nanodomains at a predetermined temperature, obtained from a basic block copolymer which is nonstructured at said predetermined temperature, and at least one block of which comprises styrene and at least another block of which comprises methyl methacrylate. The block copolymer film is useful for forming nano-lithography masks..
Polymer dispersant for cellulose, aqueous dispersion treatment agent containing same, readily dispersible cellulose composition, cellulose dispersion resin composition, and dispersant-containing resin composition for cellulose dispersion
An object of the present invention is to provide a high-performance polymer dispersant that can be applied to cellulose being a hydrophilic substance, and another object of the present invention is to provide a technology for practical application of obtaining a cellulose-dispersed resin composition that realizes stable dispersion of cellulose in a simpler manner and in an environmentally conscious manner that never uses a large amount of organic solvents when the polymer dispersant for cellulose is applied to cellulose and disperses the cellulose in a thermoplastic resin. These objects are achieved by providing a polymer dispersant for cellulose, being a polymer compound including a block copolymer structure having a resin-affinitive segment a and a cellulose-adsorptive segment b, the polymer compound synthesized by a reversible chain transfer catalyzed polymerization (rtcp) method not using any of a heavy metal, a nitroxide compound, and a sulfur-based compound, using an organic iodine compound as an initiation compound, and using a phosphorus compound, a nitrogen compound, an oxygen compound, or a carbon compound as a catalyst..
Compositions and methods for improved encapsulation of functional proteins in polymeric vesicles
Methods of preparing polymersome-encapsulated functional protein suspensions may include thermally blending an amount of a block copolymer with an amount of a low molecular weight polyethylene glycol (peg) for at least 30 minutes, mixing and cooling a resulting peg/polymer formulation to room temperature, adding an aliquot of a solution of the functional protein to a sample containing the peg/polymer formulation, and performing at least three dilution steps in which polymersomes that are generated are progressively saturated with the functional protein. The aliquot of the solution of the functional protein added may have a to the peg/polymer sample of around 0.5:1 to 1.5:1 by volume, and the thermal blending may be performed at 90-100° c..
Vindico Nanobio Technology Inc.
Liquid compositions for hair removal devices
The invention relates to liquid compositions for use with hair removal devices comprising a silicone polyether block copolymer comprising from 1% to 50%, by weight of polyethylene oxide, from 20% to 90% by weight of polypropylene oxide and from 1% to 20%, by weight of silicone for improved lubrication.. .
The Gillette Company
Ion exchange membrane and manufacturing method therefor
The present invention relates to an ion exchange membrane and a manufacturing method therefor and, more specifically, to an ion exchange membrane comprising a cross-linked sulfonated triblock copolymer and carbon nanotube, which is utilizable in a redox flow energy storage device, etc. Due to high ion conductivity, mechanical strength and ion selectivity.
Postech Academy-industry Foundation
Selective laser ablation in resists and block copolymers for high resolution lithographic patterning
Various embodiments of the invention demonstrate selective laser ablation processes as a means to create a block copolymer derived lithographic pattern through the selective removal of one block. Three block copolymer systems described ps-b-phost, p2vp-b-ps-b-p2vp, and p2vp-b-ps-b-p2vp where the p2vp is infiltrated with platinum pt.
The Regents Of The University Of California
Cell culture support and associated cell growth and release
A cell culture support comprising a substrate, and a dual stimuli responsive block copolymer immobilized on the substrate, wherein the dual stimuli responsive block copolymer is both thermoresponsive and ph responsive. A method of culturing cells comprising the cell culture support having a dual stimuli responsive copolymer immobilized on a substrate, wherein the dual stimuli responsive copolymer is thermoresponsive and ph responsive; and growing the cells on the cell culture support.
General Electric Company
Article comprising pressure-sensitive adhesive stripes
An article including a release liner with an adhesive layer disposed thereon, the adhesive layer including a plurality of stripes of a first pressure-sensitive adhesive and of a second pressure-sensitive adhesive, arranged in a generally alternating pattern. The first pressure-sensitive adhesive is a silicone-based pressure-sensitive adhesive that includes a silicone block copolymer elastomer comprising hard segments that each comprise at least one polar moiety, and the second pressure-sensitive adhesive is an organic polymeric pressure-sensitive adhesive..
3m Innovative Properties Company
Coatings for plastic substrates
Disclosed is a coating composition comprising a resinous binder prepared from a reaction mixture comprising (a) a first component; (b) a second component; and (c) a third component comprising a block copolymer having (i) a first block comprising units having functional groups reactive with at least one of the first and second components and (ii) a second block comprising units having functional groups that promote adhesion to a polymeric substrate, provided that the first component, the second component, and the block copolymer differ from each other. The block copolymer may also be used as an additive in a coating composition..
Ppg Industries Ohio, Inc.
Non-aqueous dispersant, color material dispersion liquid for color filter, color filter, liquid crystal display device and organic light-emitting display device
Disclosed is a non-aqueous dispersant which is a graft copolymer comprising a constitutional unit represented by the following general formula (ii) and at least one kind selected from the group consisting of a constitutional unit represented by the following general formula (i) and a constitutional unit represented by the following general formula (i′), or which is a block copolymer comprising a block portion containing a constitutional unit represented by the following general formula (iii) and a block portion containing at least one kind selected from the group consisting of a constitutional unit represented by the following general formula (i) and a constitutional unit represented by the following general formula (i′):. .
Dai Nippon Printing Co., Ltd.
Thermoplastic elastomer compositions having biorenewable content
Thermoplastic elastomer compositions, in particular derived from one or more styrenic block copolymers wherein at least one styrenic block copolymer comprises a controlled distribution copolymer block including a conjugated diene and a mono alkenyl arene, a plurality of biorenewable materials, preferably a softener and one or more synergistic additives such as a polar polymer; a synergistic block copolymer such as a relatively high molecular weight styrenic block copolymer; and/or filler. Numerous desirable articles can be formed from the compositions.
Propylene copolymer for bopp heat seal film layers
A propylene-comonomer block copolymer may have a molecular weight distribution mw/mn of at least 1.7, a percentage of enthalpy measured between ti and [tm−18° c.] of at least 20% of the total enthalpy, and a ratio e1/co of at least 0.80. The propylene-comonomer block copolymer may be produced by polymerizing propylene in the presence of at least one comonomer and a bridged metallocene catalyst.
Total Research & Technology