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| Number | Title | Issue Date |
| 7405265 | Method of preparing catalyst for polymerization of aliphatic polycarbonate and method of polymerizing aliphatic polycarbonate Disclosed is a method of preparing a catalyst for polymerization of aliphatic polycarbonates and a method of polymerizing an aliphatic polycarbonate. This method includes reacting a zinc precursor and organic dicarboxylic acid in a non-ionic surfactant-included solu... | 07/29/2008 |
| 7339007 | Low sediment process for thermally reacting highly reactive polymers and enophiles A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high temperature in the presence of a free radical inhibitor. The polyalke... | 03/04/2008 |
| 7312281 | Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity An anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity comprising the steps of polymerization, purification, transesterification, purification, catalyst removal, and solvent exchange. The resultant polymer in solution can be... | 12/25/2007 |
| 7300981 | Abrasion resistant elastomeric compositions The present invention includes elastomeric compositions of BIMS elastomers suitable for abrasion resistant, high traction and/or barrier articles. The compositions and articles made from those compositions of the inventions can be described in any number of embodime... | 11/27/2007 |
| 7259199 | Tire with rubber containing in-situ resin There is disclosed a pneumatic tire having a component containing a rubber composition comprising (A) a sulfur-vulcanized rubber compound; and (B) the reaction product of (1) a methylen... | 08/21/2007 |
| 7129299 | Sulphonated comb polymers having a selected lithium/sodium ratio and preparations including such polymers Water-soluble and/or water-dispersible comb polymers comprising a polymer main chain and polyester side-arms which contain sulfonic acid groups and which are linked to the polymer main chain via ester groups, wherein said side-arms have been at least partially neutr... | 10/31/2006 |
| 7084212 | Vulcanization accelerators The present invention relates to vulcanization accelerators constituted by compounds, derived from secondary amines, belonging to the class of enamines and to a process for their preparation. ... | 08/01/2006 |
| 7030193 | Nitrite compositions The present invention relates to a polymer composite containing at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound, at least one polyhalogenated hydrocarbon, optionally at least one filler and optionally at... | 04/18/2006 |
| 7026408 | Sulphonated comb polymers and preparations, in particular hair cosmetic preparations, based on such sulphonated comb polymers Water-soluble and/or water-dispersible comb polymers consisting of a polymer main chain and polyester side-arms which contain sulphone groups and are linked to said polymer main chain via ester groups. ... | 04/11/2006 |
| 6969743 | Method for utilizing sulfuric acid/peroxide liquid mixture A technique of utilizing a sulfuric acid/peroxide liquid mixture, for example, its waste liquid material, is to be developed so that the waste liquid can be re-utilized and effectively applied to obviate the problem resulting from disposal. To this end, there is pro... | 11/29/2005 |
| 6932132 | Tire with rubber sidewall containing trans polybutadiene and brominated copolymer A pneumatic rubber tire having a sidewall of a rubber composition of elastomers comprised primarily of a combination of a brominated copolymer of isobutylene and para-methylstyrene and high trans 1,4-polybutadiene polymer, of which a minor portion thereof is one or ... | 08/23/2005 |
| 6864324 | Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity An anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity comprising the steps of polymerization, purification, transesterification, purification, catalyst removal, and solvent exchange. The resultant polymer in solution can be... | 03/08/2005 |
| 6759483 | Preparation of homo-, co- and terpolymers of substituted styrenes A novel one-pot cost efficient process for the preparation of homo-, co- and terpolymers of p-hydroxystyrene or substituted p-hydroxystyrene and alkyl acrylates. The process involves polymerization of esters of p-hydroxystyrene (or its substituted analogs), alkyl ac... | 07/06/2004 |
| 6727323 | Process for reducing odor emission in aqueous polymer dispersions and in polymer powders A process for reducing odor emission in aqueous polymer dispersions and in polymer powders comprises admixing an aqueous dispersion of a polymer obtained by free-radical polymerization of one or more ethylenically unsaturated monomers, after conclusion of the polyme... | 04/27/2004 |
| 6602961 | Fluorine-containing elastomer composition A fluorine-containing elastomer composition comprising a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) and perfluoro(ω-cyanoalkyl vinyl ether) and a bisaminophenyl compound represented by the following general formula as a curing ... | 08/05/2003 |
| 6444759 | Rubber vulcanizates having improved ageing properties The invention relates to a vulcanizable rubber composition comprising a rubber, sulfur or a sulfur donor, a vulcanization accelerator, a protective agent and 0.1 phr or more of an N,N'-disubstituted p-phenylenediamine protective agent is present in the fo... | 09/03/2002 |
| 6417285 | Method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes The present invention provides a method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes, in which after polymerization, the copolymers are treated with multi-functional sulfur halides in the presence of a catalyst... | 07/09/2002 |
| 6313231 | Superabsorbent resin composition A superabsorbent resin composition comprising the following components (A), (B) and (C), wherein (A) is a superabsorbent resin, (B) is a metal compound containing at least one metal A selected from the group consisting of titanium and zirconium and (C) is a ch... | 11/06/2001 |
| 6207757 | Rubber composition, method of adding and blending the composition and vehicle tire made from the composition A rubber composition which contains a rubber mixture that can be vulcanized with a vulcanizing agent, which includes at least one rubber component, at least one filler having nucleophilic groups, gel particles comprising a rubber, having a particle size b... | 03/27/2001 |
| 6096423 | Surface-treated metal component for reinforcing structures for manufactured products made of elastomeric material and an article of manufacture comprising the same A surface-treated metal component for reinforcing structures for manufactured products made of vulcanized elastomeric material, in which the said component is coated with a layer of metal alloy and in which the said alloy is an alloy ZnMoX in which X is a... | 08/01/2000 |
| 6080332 | Procedure for the anti-scaler production for coating the polymerizing reactor and respective resultant product The invention comprises a novel process for producing an anti-scaler coating for monomer polymerization reactors comprising mixing hydroxymethansulphincal acid with 1-naphthol. The invention also comprises an anti-scaling product obtained by this novel pr... | 06/27/2000 |
| 6072009 | Methods for vulcanizing elastomers using monomeric distillate by-product The specification discloses a method for vulcanizing an elastomer using as the cure promoter the monomeric distillate by-product from the clay-based dimerization of an unsaturated fatty acid mixture, preferably a tall oil fatty acid mixture. The distillat... | 06/06/2000 |
| 6057392 | Thermomechanically mixing rubber compounds containing an alkyl (C12 -C22) ester of a fatty acid A method is disclosed for processing a rubber composition comprising thermomechanically mixing the rubber composition while maintaining a rubber temperature in a range of from 160° C. to 190° C. for a period of time ranging from 4 to 8 minutes, wherein ... | 05/02/2000 |
| 5965094 | Polymerization process with anti-scaling agents According to the invention, there are provided a novel process for preparing an anti-scaling coating on the walls of a polymerization vessel by using aromatic compounds reacted with sodium hydroxymethanesulphinate, and an anti-scaling coating obtained by ... | 10/12/1999 |
| 5891956 | Water-soluble polymers and compositions thereof Water-soluble polymers including functionalization from the group of amino groups, carboxylic acid groups, phosphonic acid groups, phosphonic ester groups, acylpyrazolone groups, hydroxamic acid groups, aza crown ether groups, oxy crown ethers groups, gua... | 04/06/1999 |
| 5869580 | Process for the preparation of crosslinkable thermoplastic and/or elastomeric polymer compositions with extensions of search time A crosslinkable composition of a polymeric thermoplastic and/or elastomeric material which is susceptible to scorching when processed at elevated temperatures, prior to crosslinking, in the presence of a free radical initiator, is protected against such s... | 02/09/1999 |
| 5849847 | Telechelic polystyrene/polyethylene copolymers and processes for making same Polyalkenylaromatic-polyethylene copolymers are prepared using protected functional organolithium initiators. Polymerization of an alkenylsubstituted aromatic monomer followed by ethylene, results in a protected functional block polystyrene-co-polyethylen... | 12/15/1998 |
| 5830817 | Accelerator combinations A vulcanization accelerator combination based on di-(C6 -C12 alkyl)dithiophosphates for vulcanizing non-polar rubbers, comprising the following components: (a) a di-(C6 -C12 alkyl)dithiophosphate; (b) one or mor... | 11/03/1998 |
| 5717026 | Polyvinyl alcohol-based fiber and method of manufacture A polyvinyl alcohol-based fiber having a gel elastic modulus of 0.05×10-3 to 8.0×10-3 g/cm.multidot.dr, a hot water shrinkage (Wsr) of 10% or higher, and a strength of 3 g/d or higher.... | 02/10/1998 |
| 5696193 | Immunoassay elements comprising polymers containing vandium IV (V+4) ions A dry immunoassay analytical element, for assaying a ligand, comprising in the following order: (a) a layer containing a labeled ligand; (b) a spreading layer; (c) a receptor layer containing a fixed concentration of an immobilized receptor for the labeled lig... | 12/09/1997 |
| 5688871 | Rubber composition containing a flavan compound and a method for producing a vulcanized rubber containing same The present invention relates to a method for producing a vulcanized rubber by compounding in a kneading step at a relatively high temperature, a rubber and a flavan compound of the formula (I) ##STR1## wherein R1, R2, R4 | 11/18/1997 |
| 5504164 | Curing systems for compositions containing halogenated copolymers of isobutylene and para-methylstrene The present invention provides for sulfur curable compositions containing a halogenated copolymer of a C4 to C7 isomonoolefin, e.g., isobutylene and a para-alkylstyrene, e.g., para-methylstyrene, and further containing a polyunsatura... | 04/02/1996 |
| 5496900 | Vulcanizable compositions based on modified acrylic rubbers Elastomeric copolymer obtained by the polymerization of: a) a monomer selected from those having general formula CH2 .dbd.CR'--CO--OR, wherein R is a monofunctional radical selected from linear or branched C1-C6 alkyl radicals; b) (meth)acrylonitril... | 03/05/1996 |
| 5439980 | Process for preparing polymer A polymer comprising at least one polymer chain is produced by polymerizing, in the presence of a radical generating source and an iodide compound, at least one monomer M1 having a radically polymerizable unsaturated bond between a carbon atom ... | 08/08/1995 |
| 5416167 | Vulcanizable rubber compositions containing salts of partial carboxylic acid esters Vulcanizable rubber compositions are disclosed which contain partial polycarboxylic acid esters or their salts. Vulcanizates obtained from the compositions are readily processible and are found to have reduced compression set and high tension values, in p... | 05/16/1995 |
| 5391621 | 1,3,4-thiadiazole curing systems for chlorine containing polymers The present invention provides an improved curing system for chlorinated polymers and blends thereof with more highly unsaturated eleastomers, using an organopolysulfide derivative of 2,5-dimercapto-l,3,4-thiadiazole as a curing agent.... | 02/21/1995 |
| 5385980 | Curable halobutyl rubber/poly-epihalohydrin rubber blends A curable halobutyl rubber/polyepihalohydrin rubber blend comprises a cure system consisting essentially of (a) sulfur, (b) sulfur accelerator, (c) zinc-containing promoter, (d) urea or urea derivative vulcanization accelerator and, optionally, (e) di- or... | 01/31/1995 |
| 5328953 | Rubber compositions with alkoxyalkanoic acid having improved processability vulcanisate properties Alkyloxyalkanoic acids, salts or esters having the formula R1 --O--(CR3 R4)x CO2 R2 where R1 represents an alkyl or alkenyl group, or a hydroxy- or alkoxy- substituted alkyl or alkenyl gro... | 07/12/1994 |
| 5326828 | Tetrabenzylthiuram disulfide/urea cured elastomeric composition The current invention relates to the use of tetrabenzylthiuram disulfide/urea curative package for thermosetting rubber elastomers in an environmentally sound method of eliminating undesirable nitrosamines. The unique curative package synergistically incr... | 07/05/1994 |
| 5272215 | Modified plastic elastomer block copolymers A thermoplastic elastomeric block copolymer comprising olefin elastomeric mid block units and terminal polystyrene units having substitution in an amount sufficient to raise the glass transition temperature of the polymer. The substitution comprises cyclo... | 12/21/1993 |
