Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7868100 | 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 C4 to C8 monoolefin monomer, a C4 to C14 multiolefin monomer and a styrenic monomer with a catalyst syst... | 01/11/2011 |
| 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 C4 to C8 monoolefin monomer, a C4 to C14 multiolefin monomer and a styrenic monomer with a catalyst syst... | 07/22/2008 |
| 7385010 | Hydrogenation of diene-based polymer latex The present invention relates to a process for the hydrogenation of the carbon-carbon double bonds in diene based polymer latex. ... | 06/10/2008 |
| 7345115 | Organic solvent-free hydrogenation of diene-based polymers A process is provided for the hydrogenation of carbon-carbon double bonds in polymers by treatment of the polymers with hydrogen in the presence of rhodium-based catalysts and in the complete absence of organic solvent. ... | 03/18/2008 |
| 7319123 | 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 initiator, and optionally as additional functional group resulting f... | 01/15/2008 |
| 7294768 | Soybean variety 0384279 The invention relates to the soybean variety designated 0384279. Provided by the invention are the seeds, plants and derivatives of the soybean variety 0384279. Also provided by the invention are tissue cultures of the soybean variety 0384279 and the plants regenera... | 11/13/2007 |
| 7262250 | Scorch-retardant composition The present invention relates to the prevention of scorching before crosslinking of a thermoplastic and/or elastomeric composition with peroxides or azo compounds. This is achieved by using a family of specific nitroxides as additive. ... | 08/28/2007 |
| 7241841 | Hydrogenated copolymers of unsubstituted and substituted conjugated dienes The random, hydrogenated copolymers according to the present invention of unsubstituted conjugated dienes and substituted conjugated dienes, having a glass transition temperature of ≦−60° C., an enthalpy of fusion of ≦100 J/g and a content of residual double ... | 07/10/2007 |
| 7235615 | Synthetic polymers with highly-functionalized liquid-rubber chain-end moieties A method is provided for synthesizing a polymer that has highly-functionalized chain-end moieties. The method functionalizes liquid rubber to terminate a metallic or organometallic initiated living polymer. After the living polymer has been terminated with the funct... | 06/26/2007 |
| RE39617 | Butadiene polymers having terminal functional groups Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70% Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly low... | 05/08/2007 |
| 7202308 | Hydrogenation method for unsaturated block copolymers and hydrogenated unsaturated block copolymers Use is made, for selectively hydrogenating the olefinic double bonds of block copolymers, at least one block of which comprises olefinic double bonds, using a catalyst based on a metal from Group VIII in a medium comprising an organic solvent for the copolymer and a... | 04/10/2007 |
| RE39559 | Butadiene polymers having terminal functional groups Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70%. Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lo... | 04/10/2007 |
| 7199175 | Tread for a tire having a rigidity gradient A tire tread comprising a rubber composition based on (phr: parts by weight per hundred parts of elastomer): (i) a diene elastomer; (ii) more than 50 phr of an inorganic filler as reinforcing filler; | 04/03/2007 |
| 7186782 | Hydrogenation catalyst composition and process for hydrogenation of conjugated diene polymer A process for hydrogenation of an unsaturated polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in t... | 03/06/2007 |
| 7186783 | Process for preparaing partially hydrogenated butadiene polymers The present invention relates to a process for preparing a partially hydrogenated butadiene polymer comprising no more than 3 mol % 1,2-butadiene-recurring units (A) and no more than 3 mol % ethylene recurring units (D), calculated on the total content mol/mol of re... | 03/06/2007 |
| 7176262 | Hydrogenated vinyl-polybutadienes The hydrogenated vinyl-polybutadienes according to the present invention have degrees of hydrogenation of from 20 to 100%, Mooney viscosities in the range of from 10 to 150 Mooney units (ML 1+4/100° C.), glass transition temperatures (Tg) of ≦−57° C... | 02/13/2007 |
| 7165584 | Rubber compositions and vulcanizates comprising nylon-containing copolymers A tire comprising a tread, where the tread includes a vulcanized rubber, from about 5 to about 80 parts by weight of a nylon-containing block copolymer per 100 parts by weight of the vulcanized rubber, and from about 1 to about 100 parts by weight filler per 100 par... | 01/23/2007 |
| 7148292 | Method for hydrogenation of polymers in dispersed medium The invention concerns a method for hydrogenation of unsaturated polymers in dispersed medium based on an oxidation-reduction system containing hydrazine, an oxidant such as a peroxide and optionally a carboxylic acid. The hydrogenation rate can reach 100% in certai... | 12/12/2006 |
| 7120343 | Optical fiber with epoxidized polyolefin based coating An optical fiber having at least one epoxidized polyolefin based polymer coating. The coating is formed from a crosslinkable composition having (a) at least one epoxidized polydiene oligomer having a first and a second end, the oligomer having at least one hydrocarb... | 10/10/2006 |
| 7019084 | Tire with rubber composition The present invention relates to the preparation of rubber compositions for tire tread and tire sidewall component applications. A tire is provided having tread of such composition designed for relatively heavy loads such as, for example, truck tires. A tire having ... | 03/28/2006 |
| 7019095 | Ethylene-vinyl alcohol copolymer and process for producing the same An ethylene-vinyl alcohol copolymer, represented by the formula (1): wherein n represents a number in the range of 15 to 15,000, and a method of producing an ethylene-vinyl alcohol copolymer wherein an 1,4 -polybutadien... | 03/28/2006 |
| 7019086 | Process for producing modified polymer A process for producing a modified polymer having, in the molecule thereof, an organic group(s) introduced thereinto and derived from a compound(s) having a free radical comprising reacting a polymer such as an elastomer with a compound having the free radical stabl... | 03/28/2006 |
| 7005469 | Modified rubber, process for producing the same, and composition The invention relates to: a modified rubber having a specific structure modified with a compound having two or more epoxy groups in the molecule; and a process for producing a modified rubber which includes copolymerizing a vinylaromatic hydrocarbon and a conjugated... | 02/28/2006 |
| 6996318 | Optical fiber with epoxidized polyolefin based coating An optical fiber having at least one epoxidized polyolefin based polymer coating. The coating is formed from a crosslinkable composition having (a) at least one epoxidized polydiene oligomer having a first and a second end, the oligomer having at least one hydrocarb... | 02/07/2006 |
| 6977276 | Oil extended rubber and composition containing low PCA oil The invention is directed to an oil extended rubber and composition comprising: a solution polymerized elastomer derived from isoprene and optionally at least member of the group consisting of conjugated dienes and vinyl aromatic monomers; and from about 5 to about ... | 12/20/2005 |
| 6969737 | Adhesion promoter for cord-reinforced rubber and metal or polymer substrate/rubber composites A rubber composition including a natural or synthetic rubber, and an adhesive resin capable of unexpected adhesion to metal, polymer and glass substrates, particularly cords in radical tires, hoses, conveyor belts, transmission belts, and the like by the addition of... | 11/29/2005 |
| 6967229 | Carbon-carbon initiators for use in golf balls A golf ball comprising a core and a cover, wherein at least the core or the cover comprises an elastomeric composition comprising a base polymer and a carbon-carbon initiator. ... | 11/22/2005 |
| 6960632 | 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 C4 to C8 monoolefin monomer, a C4 to C14 multiolefin monomer and a styrenic monomer with a catalyst syst... | 11/01/2005 |
| 6951906 | Process for hydrogenating a conjugated diene polymer This invention relates to a process for selectively hydrogenating the unsaturated double bonds of conjugated diene units of a homopolymer or copolymer. By using a highly active novel homogeneous organo titanium catalyst represented by formula (I) and lithium hydride... | 10/04/2005 |
| 6943250 | Protected aminofunctionalized polymerization initiators and methods of making and using same Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality is part of a heterocyclic radical and includes a protecting group. ... | 09/13/2005 |
| 6884832 | Adhesion promoter for cord-reinforced rubber and metal or polymer substrate/rubber composites A rubber composition including a natural or synthetic rubber, and an adhesive resin capable of unexpected adhesion to metal, polymer and glass substrates, particularly cords in radical tires, hoses, conveyor belts, transmission belts, and the like by the addition of... | 04/26/2005 |
| 6881797 | Process for hydrogenation of conjugated diene polymer A process for hydrogenation of a conjugated diene polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds ... | 04/19/2005 |
| 6881453 | Optical film A film which is a single polymer film and has a smaller phase difference as the wavelength becomes shorter. This film is made from an olefin-based polymer which has an alicyclic group in the side chain, such as hydrogenated polystyrene, the amount of the alicyclic g... | 04/19/2005 |
| 6867265 | Process for improved coupling of rubbery polymers Rubbery polymers made by anionic polymerization can be coupled with tin halides or silicon halides to improve the characteristics of the rubber for use in some applications, such as tire treads. In cases where the rubbery polymer was synthesized utilizing a polar mo... | 03/15/2005 |
| 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 also provides compositions including one or more electrophiles and o... | 02/22/2005 |
| 6841642 | Processability butyl rubber and process for production thereof A butyl polymer having improved processability is described, together with a process for production thereof. The butyl polymer derived from a reaction mixture which contains: (i) a monomer mixture comprising a C4 to C7 monoolefin monomer (preferably isobutylene) and... | 01/11/2005 |
| 6838526 | Modified conjugated diene polymer and method of producing the same and rubber composition A novel modified conjugated diene polymer is obtained by polymerizing a conjugated diene compound with a specified catalyst consisting of components (a)-(c) and then reacting with at least one specified compound selected from the group consisting of components (d)-(... | 01/04/2005 |
| 6815509 | Method for hydrogenation of polymer A process for hydrogenating a polymer, which process comprises contacting a polymer containing an olefinic unsaturated group with hydrogen in the presence of a hydrogenation catalyst to hydrogenate the olefinic unsaturated group of the polymer, and recycling at leas... | 11/09/2004 |
| 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. In particular, the invention provides anionically polymerized polymers... | 10/19/2004 |
| 6794428 | Carbon black coupler A coupler is described for use in carbon black filled rubber compositions. The coupler includes an amine group and a thiol group or a polysulfidic linkage. The coupler improves the interaction of the carbon black with the rubber as measured by a decrease in the tan ... | 09/21/2004 |
