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Block Copolymer patents

      

This page is updated frequently with new Block Copolymer-related patent applications.




new patent 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


new patent 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).. .

Block copolymer
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.
Kyoto University

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..
Arkema France

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..
Kyoto University

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.
Cerestech, Inc.

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

Metap-2 inhibitor polymersomes for therapeutic administration

Described herein are metap-2 inhibitors and compositions and formulations thereof, and more particularly compositions and formulations of metap-2 inhibitors wherein the metap-2 inhibitor is associated with a block copolymer comprising a hydrophilic polymer moiety and a hydrophobic polymer moiety. The present invention also relates to compositions and formulations comprising metap-2 inhibitors for oral administration or administration via routes such as topical or ocular administration.
Children's Medical Center Corporation

Electrical component comprising insulating resin molded article, and stabilizing flame retardance

Provided is an electric component equipped with a live electrical part and an insulating resin molded article that is molded from a thermoplastic resin composition and is in contact with the live electrical part, wherein: the thermoplastic resin composition includes (a) 60 to 80 parts by mass of a polyphenylene ether resin or a mixture of a polyphenylene ether resin and a styrene resin, (b) 60 to 80 parts by mass of a hydrogenated block copolymer, (c) 5 to 30 parts by mass of a flame retardant, and (d) 0.1 to 3 parts by mass of titanium oxide (in an amount corresponding to 100 parts by mass of the total of (a) to (c)).. .
Asahi Kasei Chemicals Corporation

Organic thin-film transistor and manufacturing same

Provided are an organic thin-film transistor including: a gate electrode, an organic semiconductor layer, a gate insulating layer, and a source electrode and a drain electrode on a substrate, in which the organic semiconductor layer contains an organic semiconductor and a block copolymer, and the block copolymer is at least one selected from specific block copolymers such as a styrene-(meth)acrylate ester block copolymer and may be phase-separated, and a method for manufacturing an organic thin-film transistor, which includes an organic semiconductor containing a phase-separated block copolymer, including: applying a coating solution which contains an organic semiconductor and a block copolymer for film formation; and heating the obtained film so that the block copolymer is self-assembled.. .
Fujifilm Corporation

Method for preparing hot-melt adhesive composition and hot-melt adhesive composition prepared thereby

Disclosed is a method for preparing a hot-melt adhesive composition and a hot-melt adhesive composition prepared thereby. The method comprises: preparing and mixing raw materials, including a butyl rubber, an ethylene propylene diene (epdm) rubber, a styrene block copolymer, an amorphous poly-alpha-olefin (apao) and a tackifier resin; and performing vacuum degassing of the mixed raw materials, wherein the styrene block copolymer comprises a styrene-isoprene-styrene (sis) rubber.
Okong Corporation

Structured block copolymers

New polyvinylamide and/or acryl acid-based copolymers. The new structured block copolymers are based on the block copolymerization of n-vinyl formamide (nvf) with other monomers by using a bifunctional initiator.
Kemira Oyj

Dual core golf ball having negative-hardness-gradient thermoplastic inner core and steep positive-hardness-gradient thermoset outer core layer

A golf ball includes a thermoplastic hnp inner core layer having a center hardness less than the surface hardness to define a positive hardness gradient. An outer core layer is disposed about the inner core and is formed from a thermoset rubber composition.
Acushnet Company

Chemoepitaxy etch trim using a self aligned hard mask for metal line to via

A method of forming metal lines that are aligned to underlying metal features that includes forming a neutral layer atop a hardmask layer that is overlying a dielectric layer. The neutral layer is composed of a neutral charged di-block polymer.
International Business Machines Corporation

Composition containing a block copolymer and a lubricating an internal combustion engine

The invention provides a lubricating composition containing an oil of lubricating viscosity and a block copolymer. The block copolymer may contain (a) a hydrophobic first block having c1-30 alkyl (meth)acrylic units, wherein at least 50 wt % of the c1-30 alkyl (meth)acrylic units are c12-15 alkyl (meth)acrylic units, and up to 50 wt % of the c1-30 alkyl (meth)acrylic units are c16-20 alkyl (meth)acrylic units, with the proviso that alkyl groups of the c1-30 alkyl (meth)acrylic units have an average total number of carbon atoms of at least 8; and (b) a second block having (meth)acrylic units further having a heteroatom-containing group providing a polar group.
The Lubrizol Corporation

Styrenic block copolymers as thermally-activated viscosifiers for oilfield applications

Provided herein is a dispersion composition comprising a blend of a semi-crystalline, selectively hydrogenated block copolymer and a low polarity fluid for oilfield applications. The block copolymer comprises blocks of semi-crystalline hydrogenated polybutadiene, blocks of poly(mono alkenyl arenes), and blocks of hydrogenated, non-crystalline conjugated dienes.
Kraton Polymers U.s. Llc

Heat activated gels for cable filling applications

Provided herein is a composition containing a hydrogenated blend of a semi-crystalline, selectively hydrogenated block copolymer, a selectively diblock copolymers lacking semi-crystalline blocks, and a low polarity fluid for cable filling applications. The block copolymer comprises blocks of semi-crystalline hydrogenated polybutadiene, blocks of poly(mono alkenyl arenes), and blocks of hydrogenated, non-crystalline conjugated dienes.
Kraton Polymers U.s. Llc

Composition for soft skins and uses thereof

A composition is disclosed, comprising a block copolymer, at least one homopolymer or copolymer of butene, and at least one olefin homopolymer or copolymer, wherein said block copolymer has hydrogenated low-vinyl polybutadiene end blocks with a specific gravity>0.85 g/cc, and a controlled distribution midblock of polyalkenyl arene/hydrogenated diene. Although the block copolymer has a preferred linear structure as a triblock copolymer, it may also be branched or radial coupled copolymer that has at least 2 arms or more.
Kraton Polymers U.s. Llc

Additives for orientation control of block copolymers

A film layer comprising a high-chi (χ) block copolymer for self-assembly and a surface active polymer (sap) was prepared on a substrate surface that was neutral wetting to the domains of the self-assembled block copolymer. The block copolymer comprises at least one polycarbonate block and at least one other block (e.g., a styrene-based block).
International Business Machines Corporation

Machine direction oriented film for labels

The invention relates to a label comprising a face material having a machine direction oriented multilayer plastic film structure comprising at least one skin layer and a core layer. The core layer comprises at least one of polypropylene homopolymer or polypropylene random copolymer or polypropylene block copolymer or mixture of two or more thereof and at least one modifier..
Upm Raflatac Oy

Metap-2 inhibitor polymersomes for therapeutic administration

The present invention provides methods to treating inflammation related disease and disorders such as an autoimmune disease and autoimmune related uveitis by administering compositions and formulations comprising metap-2 inhibitors as disclosed herein. The composition comprises a formulation of a fumagillol derivative that retains anti-inflammation activity and is associated with a block copolymer comprising a hydrophilic polymer moiety and a hydrophobic polymer moiety..
Children's Medical Center Corporation

Resin composite electrolytic copper foil, copper clad laminate and printed wiring board

The solution is to form a roughened surface having a plurality of minute projections, a surface roughness (rz) within a range of 1.0 μm to 3.0 μm and a lightness value of not more than 30 on one surface of an electrolytic copper foil (a), and form a layer of a resin composition (b) containing a block copolymerized polyimide resin (a) having a structure that imide oligomers of a first structural unit and a second structural unit are bonded alternately and repeatedly on the roughened surface.. .

2-dimensional patterning employing tone inverted graphoepitaxy

After formation of a template layer over a neutral polymer layer, a self-assembling block copolymer material is applied and self-assembled. The template layer includes a first linear portion, a second linear portion that is shorter than the first linear portion, and blocking template structures having a greater width than the second linear portion.
International Business Machines Corporation

Methods of forming different sized patterns

A method includes forming a template portion to provide a first opening trench portion surrounding a first isolated pattern, and forming an array of pillars on an underlying layer; forming a separation wall layer including first separation wall portions surrounding sidewalls of the pillars, and forming second separation wall portions covering sidewalls of the first opening trench portion; forming a block copolymer layer on the separation wall layer; forming first domains in gaps between the pillars, and forming second domains surrounding and separating the first domains by annealing the block copolymer layer; forming second openings by selectively removing the first domains; forming third openings between the second openings, and forming a fourth opening adjacent to the first isolated pattern by selectively removing the pillars and the template portion; and forming fifth openings, which extend from the second and third openings and penetrate the underlying layer, and forming a sixth opening, which extends from the fourth opening and penetrates the underlying layer.. .
Sk Hynix Inc.

Compositions and methods for pattern treatment

Pattern treatment compositions comprise a block copolymer and an organic solvent. The block copolymer comprises a first block and a second block.
Rohm And Haas Electronic Materials Llc

Compositions and methods for pattern treatment

Pattern treatment compositions comprise a block copolymer and an organic solvent. The block copolymer comprises a first block and a second block.
Rohm And Haas Electronic Materials Llc

Pattern treatment methods

Pattern treatment methods comprise: (a) providing a semiconductor substrate comprising a patterned feature on a surface thereof; (b) applying a pattern treatment composition to the patterned feature, wherein the pattern treatment composition comprises a block copolymer and a solvent, wherein the block copolymer comprises a first block and a second block, wherein the first block comprises a unit formed from a first monomer comprising an ethylenically unsaturated polymerizable group and a hydrogen acceptor group, wherein the hydrogen acceptor group is a nitrogen-containing group, and the second block comprises a unit formed from a second monomer comprising an ethylenically unsaturated polymerizable group and a cyclic aliphatic group; and (c) rinsing residual pattern treatment composition from the substrate, leaving a portion of the block copolymer bonded to the patterned feature. The methods find particular applicability in the manufacture of semiconductor devices for providing high resolution patterns..
Rohm And Haas Electronic Materials Llc

Pattern treatment methods

Pattern treatment methods comprise: (a) providing a semiconductor substrate comprising a patterned feature on a surface thereof; (b) applying a pattern treatment composition to the patterned feature, wherein the pattern treatment composition comprises a block copolymer and a solvent, wherein the block copolymer comprises a first block and a second block, wherein the first block comprises a unit formed from a first monomer comprising an ethylenically unsaturated polymerizable group and a hydrogen acceptor group, wherein the hydrogen acceptor group is a nitrogen-containing group, and the second block comprises a unit formed from a second monomer comprising an ethylenically unsaturated polymerizable group and an aromatic group, provided that the second monomer is not styrene; and (c) rinsing residual pattern treatment composition from the substrate, leaving a portion of the block copolymer bonded to the patterned feature. The methods find particular applicability in the manufacture of semiconductor devices for providing high resolution patterns..
Rohm And Haas Electronic Materials Llc



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


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    This listing is a sample listing of patent applications related to Block Copolymer for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Block Copolymer with additional patents listed. Browse our RSS directory or Search for other possible listings.


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