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7608658 |
Amine-functionalized liquid polyisoprene
This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a...
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7462677 |
Sulfur containing initiators for anionic polymerization of monomers
An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic...
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7459507 |
Method for the termination of anionic polymerization using phosphate ester/water mixture
The present invention relates to a method for terminating anionic polymerization using phosphate ester/water mixture, more particularly to a novel method for terminating anionic polymerization...
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7405262 |
Preparation of functionalized anionic polymerization initiators
A process for preparing a functionalized polymerization initiator, the process comprising combining a functionalized styryl compound and an organolithium compound.
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7354531 |
Polymer electrolyte composition
A composition for use as a polymer electrolyte, wherein said composition includes one or more polar materials and one or more polyesters of formula III,
wherein each unit A may be identical or...
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7351777 |
Retarded anionic polymerization of vinyl aromatic monomers using insoluble or heterogeneous retardants
This invention is a process to manufacture high quality vinyl aromatic polymer that is essentially free of unreacted vinyl aromatic monomer using retarded anionic polymerization wherein the...
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7288612 |
Initiator composition and method for anionic polymerisation
The invention relates to an initiator composition for anionic polymerization, comprising at least one alkali metal hydride selected from LiH, NaH, and KH, and at least one organylaluminum compound,...
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7223827 |
Water control in a subsurface formation
A composition and a method of using the composition to adjust the permeability of a subsurface formation is disclosed. The composition is a water insoluble gel made by cross linking a water soluble...
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7202310 |
Polymers, processes for producing the same, and curable compositions produced therefrom
An alkenyl- or crosslinkable silyl-terminated vinyl polymer is provided. Such a functional group is introduced into its terminus at a high ratio, not via sulfur atoms. Those polymers can be...
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7179870 |
Method for the preparation of poly sg(a)-methylstyrene
The invention relates to a process for the preparation of poly(α-methylstyrene) by anionic polymerization of the α-methylstyrene monomer, said process successively comprising the following...
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7153920 |
Synthesis of functionalized high vinyl rubber
This invention is based upon the discovery that rubbery polymers having a high vinyl content and a low degree of branching can be synthesized with an initiator system that is comprised of (a) a...
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7153919 |
Use of sulfur containing initiators for anionic polymerization of monomers
An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic...
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7125940 |
Conjugated diene polymers and copolymer blocks and process for preparing same
Disclosed is a process for preparing polymers and copolymer blocks of conjugated dienes with varying amounts of branching comprising the use of a microstructure control agent and a microstructure...
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7119126 |
Polymer matrix material
The polymer matrix material includes a polymerization product of one or more monomers selected from the group of water-soluble, ethylenically-unsaturated acids and acid derivatives, and a...
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7105613 |
CO2 terminated rubber for plastics
A process for the manufacture of a baleable lithium carboxylate polymer. The process includes polymerizing at least one conjudated diene in the presence of an organolithium initiator to a...
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7074869 |
Synthesis of functionalized high vinyl rubber
This invention is based upon the discovery that rubbery polymers having a high vinyl content and a low degree of branching can be synthesized with an initiator system that is comprised of (a) a...
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7005484 |
Polymerization method
A method for making a polymer or oligomer comprising the steps of making a first monomer comprising a substituted aromatic or heteroaromatic group by providing an aromatic or heteroaromatic group...
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6995228 |
Copolymer of conjugated cyclodiene
A cyclic conjugated diene copolymer comprising a main chain comprised of (A) cyclic conjugated diene monomer units, (B) monomer units obtained from vinyl aromatic monomers each having a hydrogen...
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6982288 |
Medical compositions containing an ionic salt, kits, and methods
A hardenable medical composition (preferably, dental composition) that includes an ionic redox polymerization system and at least one secondary ionic salt that includes a cation selected from the...
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6979717 |
Anionic process design for rapid polymerization of polystyrene without gel formation and product produced there from
The extremely rapid anionic polymerization rate of polystyrene has made polymerization difficult to control and has prevented large-scale development. This invention uses batch polymerization to...
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6881795 |
CO2 terminated rubber for plastics
A process for the manufacture of a baleable lithium carboxylate polymer. The process includes polymerizing at least one conjudated diene in the presence of an organolithium initiator to a...
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6878797 |
Synthesis and applications of polymaleimide
A process for producing alkali metal polymaleimide salts by alkaline hydrolysis of maleimide polymers prepared by polymerization of maleimide monomers in the presence of a metal oxide and alcohol...
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6878789 |
Preparation process of acrylic acid ester polymer
A process for the preparation of an acrylic acid ester polymer, includes carrying out polymerization of an acrylic acid ester or block copolymerization of an acrylic acid ester and another...
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6872783 |
Method of preparation of coupled branched and linear polymer compositions
A continuous process for manufacture of a polymer including branched and linear components comprising first polymerizing conjugated diene(s) in the presence of an organometallic initiator to a...
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6869678 |
Removable pressure-sensitive adhesive and adhesive sheet of the same
A removable pressure-sensitive adhesive which, even when applied to metal sheets or to metallic members which have undergone a coating treatment, is inhibited from increasing in adhesive force with...
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6835269 |
Laminated film and method of producing the same
A laminated film exhibiting excellent interlayer adhesiveness obtained by extrusion-laminating a resin directly on a polyester film without effecting anchor-coating or without treating the molten...
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6790920 |
Process for removal of silicon compounds from solvents by selective absorption
Removing silicon species from hydrocarbon solvents such as cyclohexane by flowing the hydrocarbon solvent through a selective adsorbent selected from the group consisting of aluminas,...
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6787661 |
Tin-containing organolithium compounds and preparation thereof
The present invention relates to a tin-containing organolithium compound which can be used as anionic polymerization initiators, represented by the following formula (1): R 4−x Sn(Y a —Z m...
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6777511 |
Process for producing poly (meth) acrylates having reduced metal content
An industrially excellent process for producing a poly(meth)acrylate having a reduced metal content which comprises contacting a mixture of a poly(meth)acrylate and an organic solvent with an...
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6767976 |
Process for polymerizing a methacrylic ester or an acrylic ester
(1) A methacrylic ester or an acrylic ester is anionically polymerized, using a polymerization initiator compound comprising an addition reaction product of a conjugated diene compound and an...
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6762259 |
Process for the production of living (co)polymers and use of the (co)polymers
The purpose of the present invention is to provide polymerization catalyst which can produce quite efficiently (co)polymer having number average molecular weight and number of molecules which are...
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6759498 |
Process for producing styrene resin reduced in content of low-molecular ingredient
A process for producing a styrenic resin with a small content of low molecular weight components, comprising a continuous anionic polymerization process wherein a raw material system having the...
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6756448 |
Styrene copolymer
The present invention relates to a styrene copolymer and the method of preparing the same through the steps described in the following: a step of making a living polymer with an active anion by...
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6727335 |
Polymeric phosphinic acids and salts thereof
The invention relates to polymeric phosphinic acids and their salts of the formula (I) in which X is hydrogen or a 1/m metal of valency m, R 1 and R 2 are identical or different and are...
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6716935 |
Continuous process for the production of controlled architecture materials under high solids loading conditions
The present invention discloses a continuous process for the production of polymerized controlled architectures materials under high solids loading conditions. The materials are made under stirred,...
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6686420 |
Pneumatic tire having a component containing high trans styrene-isoprene-butadiene rubber
The invention is directed to a pneumatic tire having at least one component comprising a vulcanizable rubber composition, wherein the vulcanizable rubber composition comprises, based on 100 parts...
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6664357 |
Method for the preparation of a stable anaerobic/UV/visible light curable adhesive
An improved process for manufacturing a dual cure anaerobic/ultraviolet adhesive. The process includes the first step of mixing a polymerizable (meth)acrylate ester monomer, such as methacrylic...
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6660800 |
Process for making crosslinked polyvinylpyrrolidone
A process for making crosslinked polyvinylpyrrolidone (PVP-P) is disclosed. Crosslinker generation, followed by polymerization of NVP, gives a polymer containing up to 4 wt. % of residual NVP. An...
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6657028 |
Anionic polymerization process
A batch process for the anionic polymerization of a styrenic monomer is described. The process brings together a liquid saturated hydrocarbon diluent, an ether promoter, an organolithium initiator...
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6613858 |
Solution of dilithium polymerization initiator
A block copolymer having narrow molecular weight distribution and excellent symmetrical property or a telechelic polymer having, equally at both terminals thereof, a functional group can be...
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6579949 |
Preparation of low hysteresis rubber by reacting a lithium polymer with a sulfur containing reagent
A vulcanized elastomeric composition of matter comprises the reaction product of a sulfur-containing reagent with an anionic living polymer, the reagent being selected from the group consisting of...
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6576728 |
Process for preparing styrene-isoprene rubber
This invention is based upon the discovery of certain anionic initiator systems can be used to initiate the solution polymerization of conjugated diolefin monomers into rubbery polymers having a...
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6562923 |
Process for the preparation of a dilithiated initiator and anionic polymerization process
The present invention relates to a process for the preparation of a dilithiated initiator usable in anionic polymerization, a process for the preparation by anionic polymerization of a living diene...
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6521733 |
Tapered aromatic-vinyl/conjugated-diene copolymer rubber, process for producing the same and rubber composition
A tapered aromatic vinyl-conjugated diene copolymer rubber having a ratio W 0.6Mp /W Mp in the range of 0.65-0.9 or 1.1-1.3 wherein Mp is molecular weight of a copolymer molecule corresponding to...
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6512066 |
Process for making crosslinked polyvinylpyrrolidone with low swell volume
A two-step, base-catalyzed process for making crosslinked polyvinylpyrrolidone (PVP-P) having a low swell volume is disclosed. A crosslinker is generated “in situ” in the first step by heating...
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6492469 |
Increased throughput in the manufacture of anionic polymers by reduction in polymers by reduction in polymer cement viscosity through the addition of metal alkyls
The present invention is an improvement upon the known method of anionically polymerizing monomers by contacting the monomers with an anionic polymerization initiator which is an organo-substituted...
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6489262 |
Initiation system and process for anionic (co) polymerization of (Meth) acrylic, vinylaromatic and/or diene monomers
The present invention relates to an initiation system composed of the reaction product of at least one cyclic siloxane and at least one organometalic compound of sufficient reactivity to open the...
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6482908 |
Template-directed ring-closing metathesis and ring-opening metathesis polymerization of functionalized dienes
Functionalized cyclic olefins and methods for making the same are disclosed. Methods include template-directed ring-closing metathesis (“RCM”) of functionalized acyclic dienes and...
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6476133 |
Method for producing a solution of diene polymers in vinyl aromatic compounds and method for producing resistant vinyl aromatic polymers by polymerizing the same solution
A process for preparing a solution of high molecular weight polymers of conjugated dienes in a vinylaromatic hydrocarbon by anionic polymerization of the diene in the presence of an alkyllithium as...
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6462143 |
Gel-free process for making functionalized anionically polymerized polymers
This invention relates to a gel-free process for making functionalized polymers. When multi-alkali metal initiators are used to make these polymers anionically, the process comprises anionically...
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