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7550539 |
Partially neutralized chlorosulfonated polyolefin elastomers
At least partially neutralized chlorosulfonated ethylene/alpha-olefin elastomers containing 0.5-10 weight percent chlorine and 0.25 to 5 weight percent sulfur are prepared from...
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7550538 |
Chlorosulfonated propylene/olefin elastomers
Chlorosulfonated propylene/olefin elastomers containing 0.5-55 weight percent chlorine and 0.15 to 5 weight percent sulfur are prepared from metallocene catalyzed propylene/olefin copolymer base...
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7511105 |
One-pot process and reagents for preparing long chain branched polymers
A one-pot polymerization process of preparing long chain branching polymers is provided. Also described is a “T” reagent that serves as a link between main and side chains of an inventive long...
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7491773 |
Halogenated polymers with new sequence distributions
The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel halogenated polymers with new sequence distributions. In...
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7446153 |
Preparation of brominated styrenic polymers or resins
Bromination of styrenic polymer is carried out in a closed reaction system to retain HX coproduct (where HX is HBr or HCl, or both) in the bromination reaction mixture at superatmospheric pressure....
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7446151 |
Process for production of high-isoprene butyl rubber
The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less...
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7432332 |
Polymer halogenation process with catalyst recovery
The present invention relates to a method for recovering antimony catalysts wherein the formation of insoluble solids is reduced.
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7416766 |
Bottles made from metallocene polypropylene for delivery of fragrances
Bottles made of metallocene polypropylene (mPP) for storage and dispensing reservoirs for fragrance compositions, in particular fragrance oils, are described. The mPP bottles can be used in warmer...
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7402633 |
Halogenated terpolymers of isobutylene, diolefin monomer and styrenic monomer
A halogenated butyl polymer having improved properties, the butyl polymer derived from a monomer mixture comprising a C 4 to C 8 monoolefin monomer, a C 4 to C 14 multiolefin monomer and a...
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7368510 |
Organic semiconductor copolymers containing oligothiophene and n-type heteroaromatic units
An exemplary organic semiconductor copolymer includes a polymeric repeat structure having a polythiophene structure and an electron accepting unit. The electron accepting unit has at least one...
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7354975 |
Chlorinated polyolefins and process for their production
Uniform chlorinated polyolefins which can give crosslinked rubbers and thermoplastic elastomers with excellent low-temperature rubber elasticity, compression set and fatigue strength, and a process...
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7351771 |
Process for regenerating 2-chlorotrityl resins
The present invention relates to a recycling process for the preparation of solid phase bonded 2-chlorotrityl chloride (2-CTC resin) useful for solid phase peptide synthesis, wherein active...
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7345114 |
Method for producing chlorinated vinyl chloride resin
According to the present invention, during or after the process of separating an aqueous solution of hydrochloric acid by-produced from a chlorinated vinyl chloride resin slurry obtained by...
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7273908 |
Chlorosulphonated ethylene-α-olefin copolymer and method for producing the same
A chlorosulphonated ethylene-α-olefin copolymer having a chlorine content of 0.5-20% by weight and a glass transition temperature in differential scanning calorimetry (DSC) of −50° C. or lower...
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7235610 |
Aqueous dispersion, process for producing the same, and use
The purpose of the invention is to provide a novel aqueous dispersion that allows high solidification and that has good adherence and gasohol resistance to polyolefin substrates even on...
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7208553 |
Fluoropolymer curing system
A composition of a fluoropolymer comprising interpolymerized units of nitrogen-containing cure site monomer and a catalyst comprising a compound having the formula:
wherein HA is an acid, each...
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7208552 |
Binder resin compositions, production process and use thereof
The invention provides a novel binder resin composition with good adherence onto prime materials of polyolefin, poly (vinyl chloride), polycarbonate, PET, ABS and nylon, and also with excellent...
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7014781 |
Methods and articles for maintaining hydantoinylated polymers in a biocidally active state
A composition and the method for sustaining the biocidal activity of chlorinated polystyrene hydantoin beads. The method comprises supplying a continuous low level halogen concentration to the...
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7001966 |
Method for the production of isobutene polymers
The present invention relates to a process for preparing an isobutene polymer using a cyclopentene derivative as initiator and to the isobutene polymer obtainable by means of the process and to...
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6992148 |
Recovery of antimony catalyst residues from bromination reaction mixtures
A process for brominating a styrenic polymer in an organic solvent in the presence of an antimony trihalide catalyst such that a reaction mass containing brominated styrenic polymer in an organic...
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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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6890996 |
Branched polyvinyl imidazoline acid salt, polymeric flocculant comprising same, and process for preparing same
The present invention provides a branched polyvinyl imidazoline acid salt which, when used in waste water treatment, especially sewage treatment, forms flocs and decreases the water content of a...
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6875821 |
Process for production of partially protected poly(hydroxystyrene)s
A process for making poly(hydroxystyrene)s whose phenolic hydroxyl groups are partially protected by acid-decomposable or -eliminable groups, by which the degree of deblocking of the phenolic...
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6858679 |
Compositions providing improved functionalization of terminal anions and processes for improved functionalization of terminal anions
Compositions including one or more anionic polymerization initiators and one or more additives for improving functionalizing efficiency of living polymer anions are disclosed. The present invention...
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6852802 |
Organic polymer material, process for producing the same, and heavy-metal ion remover comprising the same
An object of the present invention is to provide a heavy metal ion scavenger having more excellent scavenging performance than previously. In order to attain this object, organic polymer materials...
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6828389 |
Method for producing polymer-bonded 2-chlorotrityl-chloride
A method for producing polymer-bound 2-chlorotrityl chloride of the formula (I): wherein is a polymer support, preferably cross-linked polystyrene, by reacting a corresponding carboxylic acid...
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6812295 |
Functionalized initiators for anionic polymerization, protected functionalized polymers, deprotected analogues thereof, and methods of making the same
The present invention provides functionalized electrophiles, their analogous initiators, and processes for preparing these compounds. The present invention also relates to homotelechelic,...
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6806307 |
Synthesis and use of chain-coupled polymeric sulfide compounds in rubber formulations
The invention provides chain-coupled polymeric sulfide compounds for use as the elastomeric component in vulcanizable elastomeric compositions comprising silica, carbon black or mixtures thereof....
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6794457 |
Fluoropolymer curing system containing a nitrogen cure site monomer
A composition comprising a fluoropolymer comprising interpolymerized units derived from a nitrogen-containing cure site monomer; and a catalyst composition comprising a compound having the general...
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6767960 |
Process for preparing high impact vinyl aromatic polymer by continuous anion polymerization method
The present invention is to provide a continuous anion polymerization method for preparing transparent high impact vinyl aromatic polymer comprising the steps of: i) charging and polymerizing vinyl...
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6639022 |
Process for the preparation of superabsorbent polymers from polyacrylonitriles
A process for the preparation of superabsorbent polymers by alkaline hydrolysis of polyacrylonitrile emulsions is disclosed. In an embodiment of the invention the process comprise preparing a PAN...
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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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6545100 |
Halogenated, high molecular weight, gel-free isobutene copolymers with elevated double bond contents
The present invention relates to halogenated, low-gel, high molecular weight isoolefin multiolefin copolymers, in particular to halogenated, low-gel, high molecular weight butyl rubbers, and...
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6541573 |
Method for eliminating formamide from polymerizates containing n-vinyl formamide units
A process for the elimination of formamide from polymers containing N-vinylformamide units involves treating formamide-containing polymers with from 1 to 2 mol-equivalents of an acid or a base,...
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6512051 |
Elastomer composition
An elastomer composition including an elastomer having a functional group, and a compound having a functional group, in which corresponding functional groups form a cross-link by at least one of an...
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6486265 |
Method for surface modification of molded article of plastic and method for modifying polymer
An invented method for the surface modification of a molded plastic treats a molded plastic with an oxygen-atom-containing gas such as oxygen, carbon monoxide, a nitrogen oxide, or a sulfur oxide...
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6426391 |
Fluorination in liquid or supercritical carbon dioxide
A method of fluorinating a substance comprises providing a reaction mixture comprising a liquid or supercritical carbon dioxide reaction medium, a first reactant, and a second reactant, wherein the...
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6372866 |
Process for producing cationic emulsion
A process for producing a cationic emulsion stable to alkalis having an average particle diameter of 0.01 to 0.1 micron, in which, using as an emulsifier, a water-soluble polymer A 2 obtained by...
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6327521 |
Process control method for vented polymerizers
A method for controlling the properties of the product polymer of a polymerization process to improve the process productivity and product quality in both batch and continuous production of...
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6277924 |
Solid golf ball
The present invention provides a solid golf ball which attains long flying distance and is superior in hit feeling and durability. The present invention provides a solid golf ball in which at least...
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6274689 |
Random isomonoolefin/allyl styrene copolymers and functionalized derivatives thereof
The invention provides a copolymer of an isomonoolefin having from 4 to 7 carbon atoms and containing a copolymerized alkenyl styrene moiety represented by the formula I: ##STR1## where m=0-2,...
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6218485 |
Process for producing narrow polydispersity alkenylphenol polymer
A process for producing a monodisperse polymer which has a number-average molecular weight from 1,000 to 100,000 and a molecular weight distribution Mw (weight-average molecular weight)/Mn...
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6194120 |
Organic photochromic compositions and method for fabrication of polymer waveguides
Optical waveguides prepared by irradiating selected regions of positive photochromic polymeric materials with actinic radiation are disclosed. The photochromic materials undergo an irreversible...
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6184309 |
Selected deprotection of protected functional polymers
A process for removing a protecting group from a polymer. Protected functional groups of a polymer may be deprotected by treating the polymer in the presence of an acid catalyst, including organic...
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6103831 |
Water soluble dye complexing polymers
This invention relates to dye complexing polymers, and, more particularly, to water soluble poly(vinylpyridine betaines) containing a quaternary nitrogen and a carboxylate salt. The polymers herein...
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6096834 |
Hydrolyzable delivery system using crosslinked polymeric resins as vehicles
This invention provides a method of preparing a polymeric delivery system for active ingredients. The delivery system is formed either by attaching the active ingredient to a linker through a...
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6077909 |
Low chlorine content compositions for use in lubricants and fuels
Methods are revealed for producing polyolefin substituted carboxylic acylating agents having less than 1000 ppm chlorine, and reaction products formed therefrom such as dispersants. The carboxylic...
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6051659 |
Highly sensitive positive photoresist composition
Positive resists sensitive to UV, electron beam, and x-ray radiation which are alkaline developable are formulated from a polymer material comprising recurrent structures having alkaline soluble...
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6018001 |
Process for producing contact lens with hydrophilic surface and contact lens obtained thereby
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5977233 |
Brominated syndiotactic polystyrene and the use thereof
The present invention provides a method of producing a flame-retardant polymer comprising mixing one or more polymeric base resins with a source of brominated syndiotactic polystyrene that displays...
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