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7615522 |
Polymers produced by atom transfer radical polymerisation technique with structurally modified terminal groups
The present invention relates to a block copolymer prepared by ATRP, wherein the polymer chain terminal group is structurally modified with the functionally effective group of a lubricant or...
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7608669 |
Preparation of impact-resistant thermoplastic materials on the basis of styrene/butadiene copolymers with polydisperse blocks
This invention describes the obtainment of impact-resistant materials from a block copolymer that comprises as monomers an alkadiene (conjugated diene) and a vinyl aromatic compound, which is used...
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7579401 |
Solid polymer electrolyte
An object of the present invention is to provide a practical solid polymer electrolyte that exhibits excellent thermal characteristics, physical characteristics, and ionic conductivity, and in...
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7560503 |
Gels from high molecular weight block copolymers
The present invention relates to gels prepared from novel anionic block copolymers of aromatic vinyl compounds and conjugated dienes. The block copolymers include a high molecular weight linear...
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7547746 |
Golf ball containing centipede polymers
The present invention relates generally to golf balls containing a centipede polymer in one or more core layers, one or more cover layers, one or more intermediate layers.
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7544740 |
Multi-layer nano-particle preparation and applications
A multi-layer nano-particle composition including a polymer core and at least two additional layers is provided. The nano-particles have a mean average diameter less than about 100 nm. The...
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7524899 |
Blends of styrene/butadiene block copolymers
A blend comprising
a) from 5 to 40% by weight of a linear block copolymer of vinylaromatic monomers and dienes of the structure (I) S 1 —(B/S) 1 —S 2 having a flexible phase fraction (B/S) 1 ...
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7504454 |
Process for the preparation of block copolymers for tire tread compositions, and these copolymers
A process for the preparation of a functionalized, coupled or starred block copolymer which is usable in a sulphur-cross-linkable rubber composition of reduced hysteresis in the cross-linked state,...
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7470747 |
Block copolymer mixture and heat shrinkable film using it
A block copolymer mixture comprising block copolymers (A), (B) and (C) each block comprising vinyl aromatic hydrocarbon and conjugated diene monomer units:
wherein block (A) comprises from...
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7449518 |
High temperature block copolymers and process for making same
A novel process for preparation of block copolymers containing, for example, alpha-methyl-styrene/styrene glassy blocks is claimed, where the glassy blocks contain 25-50 mol % alpha-methyl-styrene...
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7393898 |
Block copolymer composition
To provide a block copolymer composition having a good balance in transparency and impact resistance, and particularly having an excellent impact resistance, by making a molded product of injection...
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7358298 |
Pressure-sensitive adhesive/adhesive and block copolymer suitable for use therein
The present invention provides an adhesive composition containing a block copolymer, wherein the block copolymer has a polymer block (A) which is principally composed of a α-methyl styrene unit,...
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7332546 |
Ring-opened azlactone telechelic polymer
A curable composition is described comprising a Michael donor component, a polyacryl component, and 1) an ethylenically unsaturated monomer having a reactive azlactone functional group, or 2) an...
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7323517 |
Composition and process for enhancing controlled free radical polymerization
The present invention relates to a composition and process for enhancing the controlled radical polymerization in the presence of nitroxyls and nitroxylethers by adding a chain transfer agent...
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7312277 |
Mass polymerized rubber-modified monovinylidene aromatic copolymer composition
Disclosed is a mass polymerized rubber-modified monovinylidene aromatic copolymer composition with an excellent balance of physical and mechanical properties especially low temperature impact, and...
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7307124 |
Hot-melt adhesive composition for non-wovens
Hot-melt adhesive compositions used in non-woven assemblies, comprising:
(a) 100 parts by weight of a block copolymer of the formula S-(I/B)-S, wherein S represents a predominantly...
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7304112 |
Azlactone telechelic polymer
A curable composition is described comprising a Michael donor component, a polyacryl component, and 1) an ethylenically unsaturated monomer having a reactive azlactone functional group, or 2) an...
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7304110 |
Polymer, process for producing the polymer and curable composition containing the polymer
This invention provides a production method of a vinyl polymer having a functional group at a molecular chain terminus which comprises adding a compound (I) having a functional group and an...
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7271207 |
Bituminous composition
A bituminous composition which comprises a bituminous component and a block copolymer which comprises at least two blocks of a conjugated diene and at least two blocks of a monovinylaromatic...
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7244788 |
Polymer and process for producing polymers
A method of producing a polymer or a stellar polymer which comprises polymerizing a vinyl monomer in the manner of living radical polymerization and adding a compound having two or more...
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7232864 |
Coupled radial anionic polymers
The present invention is a coupled radial anionic polymer comprising a polyhedral oligosilsesquioxane [POSS] of the formula [R—SiO 3/2 ] n . POSS compounds having R=vinyl, glycidyldimethyl silyl,...
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7220798 |
Process for preparing block copolymer and resulting composition
Lithium-terminated polymers of one or more conjugated dienes and of one or more mono alkenyl arenes are coupled by reaction with an alkoxy silane coupling agent having the formula R x...
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7205360 |
Preparation process for block copolymers for tire tread compositions, and such copolymers
A preparation process for a copolymer having two blocks usable in a sulphur-cross-linkable rubber composition of reduced hysteresis in the cross-linked state, such a block copolymer in which one of...
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7186779 |
Block copolymer compositions, having improved mechanical properties and processability
A composition to be used for the manufacture of mono- or multilayer films for food-wrap applications comprising from 5 to 40 wt % of a styrenic block copolymer, a polyolefin in an amount of at...
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7179864 |
Polymer nano-strings
A polymer nano-string composition is provided. The polymer nano-strings can include a poly(alkenylbenzene) core, and a surface layer comprising poly(conjugated diene). The nano-strings have a mean...
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7160952 |
Process for preparing linear block copolymer
The present invention relates to a linear block copolymer and a process for preparing the same, particularly to a linear block copolymer and a process for preparing the same which can improve...
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7144961 |
Thermoplastic elastomer composition
The present invention provides a thermoplastic elastomer composition which is not only satisfactory in rubber-like characteristics and moldability but also satisfactory in both permanent...
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7115684 |
High gloss rubber modified monovinylidene aromatic polymers produced by a mass polymerization process
The present invention relates to a mass polymerized rubber-modified polymeric composition comprising a continuous matrix phase of a polymer of a monovinylidene aromatic monomer, and optionally, an...
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7105611 |
Thermoplastic elastomer composition
An object of the present invention is to provide a thermoplastic elastomer composition which is highly flexible while maintaining vibration damping properties, as a feature of an isobutylene...
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7105608 |
Copolymer of propylene with a conjugated diene and a process of preparing the same
The present invention provides a new copolymer of propylene and a conjugated diene having a carbon-carbon double bond in a side chain, wherein a molar ratio of a total of 1,2-adducts and...
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7074860 |
Composition and process for enhancing controlled free radical polymerization
The present invention relates to a composition and process for enhancing the controlled radical polymerization in the presence of nitroxyls and nitroxylethers by adding a chain transfer agent...
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7067591 |
Block copolymers and process for their preparation
A block copolymer having structural formula A-B or A-B-A, wherein A is a crystallizable isotactic polypropylene block segment and B is an amorphous olefin elastomeric block segment; the novel...
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7067583 |
Tear resistant adherent gels, composites, and articles
Adherent gels and adherent gel composites which can be made by applying a tear resistant adherent gel of SEEPS onto one or more selected substrates of foam, plastic, fabric, metal, concrete, wood,...
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7056985 |
End-capped polymer chains and products thereof
According to an aspect of the present invention, a method is provided in which a double diphenylethylene compound is reacted with a polymer that contains a carbocationically terminated chain...
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7041755 |
Ring-opened azlactone photoiniferters for radical polymerization
Photoiniferters for controlled radical polymerizations are described. The photoiniferters have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
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7037980 |
Monovinylarene/conjugated diene copolymers having lower glass transition temperatures
We disclose a monovinylarene/conjugated diene block copolymer, comprising: (i) a random (conjugated diene x /monovinylarene y ) m block, wherein x is about 2.5 wt % to about 10 wt %, y is from...
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7022766 |
Olefin block copolymer, viscosity index improver for lubricating oils and lubricating oil composition
The present invention provides an olefin block copolymer for a viscosity index improver capable of preparing a lubricating oil composition having excellent low temperature properties and excellent...
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7005394 |
Tackified thermoplastic-epoxy pressure sensitive adhesives
A pressure sensitive adhesive composition comprised of: a) 75 to 99.9 weight percent of a tackified thermoplastic polymer component comprising 1) 1–99 weight percent of a thermoplastic polymer...
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6998446 |
Unbalanced multi-block SBS and method for the preparation thereof
The present invention relates to the unbalanced multi-block styrene-butadiene-styrene (SBS) and provides the copolymer represented by the following structure, mB1*S1−lB2−S2−sB3,
...
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6960631 |
Catalyst composition and process for producing copolymer
A method for block copolymerization of a conjugated diene and an aromatic vinyl compound, which comprises the steps of carrying out homopolymerization of the conjugated diene in the presence of a...
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6956100 |
Polyamide resin-containing varnish and its use
An object of the present invention is to provide a polyamide resin composition from which the solvent is easily removed during film formation and which gives a film or adhesive layer reduced in...
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6956084 |
Nano-particle preparation and applications
A nano-particle composition including a poly (alkenylbenzene) core and a poly (conjugated diene) or a poly(alkylene) surface layer is provided. The nano-particles have a mean average diameter less...
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6953824 |
Thermoplastic elastomer composition, formed article of the same and composite formed article of the same
A thermoplastic elastomer composition excellent in softness, permanent compression set (both short- and long-term), and controlled in bleed-out of the softening agent as well as a formed article...
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6946525 |
Composition comprising polymers having a star structure, the polymers, and their use
A composition, comprising, in an appropriate medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of...
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6939906 |
Block copolymer composition
Disclosed is a block copolymer composition comprising a block copolymer (I) comprising at least two polymer blocks (each polymer block (S) comprising vinyl aromatic hydrocarbon monomer units) and...
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6921793 |
Rubber compositions and vulcanizates including comb-branched polymers
A vulcanizate comprising a rubber, and a damping component that is prepared by preparing a mixture of living polymers that include living polymers with at least two living ends and living polymers...
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6916884 |
Method for block polymer synthesis by controlled radical polymerization in the presence of a disulphide compound
The invention concerns a method for preparing a first generation polymer comprising a step which consists in radical polymerization of a composition containing: at least an ethylenically...
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6916879 |
Core-hydrogenated block copolymers having an asymmetric structure
The invention relates to core-hydrogenated block copolymers composed of vinyl aromatic monomers and dienes having at least two blocks S, which are of different molecular weights and ate comprised...
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6911510 |
Azlactone chain transfer agents for radical polymerization
Chain transfer agents for controlled radical polymerizations (RAFT) are described. The chain transfer agents have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
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6903165 |
Process for producing epoxidized diene polymer
A process for producing an epoxidized diene polymer includes: dispersing or suspending a diene polymer (C) having a ball-reduced particle size of 0.05-20 mm in a medium (A) in the presence of...
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