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| Number | Title | Issue Date |
| 8114943 | Process for brominating butadiene/vinyl aromatic copolymers Butadiene copolymers are brominated in solution using bromine as the brominating agent. The bromination is conducted in the presence of an excess of an aliphatic alcohol, relative to the amount of bromine that is used. The bromination proceeds rapidly at mild condit... | 02/14/2012 |
| 7910662 | Halogenation processes The invention discloses improved processes to halogenate polymers. In particular, the invention discloses to improved processes to halogenate polymers made from C4-1012 isoolefins. ... | 03/22/2011 |
| 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 particular, the invention relates to halogenated copolymers of an isoolefin,... | 02/17/2009 |
| 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 than 15 wt. % containing repeating units derived from at least one iso... | 11/04/2008 |
| 7427651 | Process for producing conjugated diene copolymer rubber A process for producing a conjugated diene copolymer rubber which comprises initiating a copolymerization reaction in a reaction system containing a first conjugated diene compound and a first aromatic vinyl compound and completing the reaction, adding a first polyf... | 09/23/2008 |
| 7402542 | Construction material A structural material of a polystyrene base and the reaction product of the polystyrene base and a solid phosphate ceramic is applied as a slurry which includes one or more of a metal oxide or a metal hydroxide with a source of phosphate to produce a phosphate ceram... | 07/22/2008 |
| 7335706 | Method of making alkoxy functionalized rubbery polymers The present invention is directed to a method for synthesizing rubbery copolymers, such as styrene-butadiene rubber, or rubbery homopolymers, such as polybutadiene rubber, that are alkoxy functionalized, e.g., alkoxysilane functionalized, and provide desirable dispe... | 02/26/2008 |
| 7335712 | Process of producing a siloxy-functionalized polymer This invention relates to siloxy-functionalized polymers having the silicon of the siloxy group directly bonded to the end of a polymer chain through one or more carbon atoms, processes of producing the polymers, and initiators used to prepare the polymers. The poly... | 02/26/2008 |
| 7312171 | Method of binding structural material A structural material of a polystyrene base and the reaction product of the polystyrene base and a solid phosphate ceramic. The ceramic is applied as a slurry which includes one or more of a metal oxide or a metal hydroxide with a source of phosphate to produce a ph... | 12/25/2007 |
| 7294664 | Elastomeric blend for air barriers comprising grafted resin components A composition suitable for an air barrier such as an automotive tire innertube, innerliner, and aircraft tire innertube or innerliner, curing bladders, and other pneumatic devices is disclosed. The composition comprises an elastomer, a processing oil, and a grafted ... | 11/13/2007 |
| 7279531 | Rubbery polymers containing tin coupling agents and rubber compounds including the same The present invention is directed to rubbery polymers, such as polybutadiene rubber or styrene-butadiene rubber, that contain tin coupling agents and provide desirable dispersion of carbon black in rubber compounds, such as for use in tire treads. The tin coupling a... | 10/09/2007 |
| 7264868 | Overmolded grip The present invention discloses an article of manufacture comprising a soft thermoplastic elastomer composition overmolded onto a hard substrate, wherein the soft thermoplastic composition includes (a) 5 to 60 parts by weight of a thermoplastic resin, (b) 5 to 70 pa... | 09/04/2007 |
| 7241831 | Elastomeric compositions The present invention includes compositions suitable for air barriers such as innerliners where adhesion to tire carcass materials (e.g., SBR) and flexibility are desirable, as well as low air permeability. The invention includes a tire innerliner made by combining ... | 07/10/2007 |
| 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 lithium initiator selected from the group consisting of allylic lithium ... | 12/26/2006 |
| 7150919 | Overmolded grip The present invention discloses a thermoplastic elastomer composition which is comprised of (a) a thermoplastic resin selected from the group consisting of polyolefin resin, polyphenylene ether, and polystyrene, wherein the thermoplastic resin is present at a level ... | 12/19/2006 |
| 7151147 | Method for producing polymers using conjugated dienes and vinyl aromatic compounds, polymers produced according to said method and use thereof This invention relates to a process for producing polymerisates by anionic polymerization in an inert reaction medium using conjugated dienes and vinylaromatic compounds in the presence of a catalyst, co-catalyst, and randomizer. Further, the invention relates to th... | 12/19/2006 |
| 7151140 | Preparation method of diene copolymer having improved rolling resistance and wet traction The present invention provides a method for preparing a copolymer useful for the manufacture of tires by coupling the ends of a living polymer, obtained from copolymerization of a diene monomers in the presence of an organolithium initiator and a hydrocarbon solvent... | 12/19/2006 |
| 7148290 | Rubber composition for golf ball A rubber composition for a golf ball having excellent rebound characteristics and excellent durability, and showing good workability, which contains a base rubber, a co-crosslinking agent, an organic peroxide and an inorganic filler, wherein the base rubber includes... | 12/12/2006 |
| 7144962 | Method for surface treatment of rubber process for production of rubber articles, rubber compositions, rubber molding, and process for production thereof A method for the surface treatment of rubber, a process for production of a rubber article, and a rubber composition wherein a structure derived from a fluorine compound containing a fluoroalkyl at both ends of its molecule are joined to a polymer main chain of cros... | 12/05/2006 |
| 7112632 | Process for the preparation of low branch content polybutadiene A process for the preparation of low branch content polybutadiene comprising: (a) a first butadiene polymerisation stage; (b) treatment of the polymer solution obtained upon completion of stage (a) with a coupling ... | 09/26/2006 |
| 7098272 | Method for producing hydroxyl group-containing polymer particles The present invention provides a method for producing hydroxyl group-containing polymer particles including causing cross-linked polymer particles containing a (meth)acrylate polymer to react in the presence of a metal-containing ester-exchange reaction catalyst wit... | 08/29/2006 |
| 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 lithium initiator selected from the group consisting of allylic lithium ... | 07/11/2006 |
| 7064171 | Non-random styrene-butadiene rubber The present invention reveals a tire having a tread that is comprised of (1) 30 phr to 80 phr of a non-random styrene-butadiene rubber comprised of polymer chains that are derived from styrene and 1,3-butadiene, wherein from about 10 weight percent to about 50 weigh... | 06/20/2006 |
| 7030195 | Process for the preparation of polybutadiene with a low branching degree Process for the preparation of polybutadiene with a low branching degree which comprises: (a) a first polymerization step of butadiene in the presence of organic solvents and in the presence of a catalytic system comprising (a1) a derivative of neodymiu... | 04/18/2006 |
| 7001860 | Construction material and method A structural material of a polystyrene base and the reaction product of the polystyrene base and a solid phosphate ceramic. The ceramic is applied as a slurry which includes one or more of a metal oxide or a metal hydroxide with a source of phosphate to produce a ph... | 02/21/2006 |
| 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 |
| 6927269 | Functionalized elastomers This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having of the structural formula: ... | 08/09/2005 |
| 6897262 | Scavenger resin and processes for the use thereof Scavenger resins comprising pendant groups specific for the removal of primary amines form solution in the presence of secondary amines are provided. Processes for the use of these scavenger resins, especially in solid phase synthesis, for the removal of primary ami... | 05/24/2005 |
| 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 conversion that is at least 90% complete. A coupling agent is added to ob... | 03/29/2005 |
| 6838500 | Adhesive compositions and tapes comprising same An adhesive composition and tapes utilizing the adhesive compositions are disclosed. A tape utilizing the adhesive composition of the present invention particularly suitable for use in closure systems associated with air ducts and air connectors is disclosed. A comp... | 01/04/2005 |
| 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 |
| 6750296 | Polymer material with stable non-wetting surface The present invention provides block copolymers with semifluorinated LC side groups (single or monodendron groups). The block copolymers can be blended with a thermoplastic elastomer block copolymer, e.g., styrene-ethylene/butylene-styrene (SEBS) to provide a surfac... | 06/15/2004 |
| 6664319 | Rubber compound for golf ball and golf ball A golf ball is provided that includes a molded resilient inner core made of a rubber compound and a polymeric cover surrounding the inner core. The rubber compound is a halo-butyl rubber polymer and a carbon black filler in an amount of 80% to 100% by wei... | 12/16/2003 |
| 6627721 | Functionalized elastomers This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having of the structural formula: ##STR1## wherein R represe... | 09/30/2003 |
| 6602960 | Polymers and copolymers prepared or modified by using cobalt complexes A polymerization process comprising the steps of admixing a halogen-containing compound, monomer, and a cobalt complex.... | 08/05/2003 |
| 6583244 | Synthesis of rubber having a low vinyl content Metal salts of cyclic alcohols can be used as modifiers in lithium initiated solution polymerizations of diene monomers into rubbery polymers having a low vinyl content. For instance, such initiator systems can be used in the copolymerization of styrene a... | 06/24/2003 |
| 6566420 | EPDM rocket motor insulation A novel and improved EPDM formulation for a solid propellant rocket motor is described wherein hexadiene EPDM monomer components are replaced by alkylidene norbornene components and with appropriate adjustment of curing and other additives functionally-re... | 05/20/2003 |
| 6525140 | 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 conversion that is at least 90% complete. A coupling agent is ... | 02/25/2003 |
| 6461789 | Polymers, chemical amplification resist compositions and patterning process Polymers comprising fluorinated vinyl alcohol units and having acid labile groups partially introduced are novel. Using such polymers, resist compositions featuring transparency to excimer laser light and alkali solubility are obtained.... | 10/08/2002 |
| 6462142 | Processes for improved surface properties incorporating compressive heating of reactive gases An apparatus and method are used to modify the surface chemistry of an article. The article to be surface treated has at least a surface region that includes at least one polymer. The method comprises the steps of placing one or more articles into a close... | 10/08/2002 |
