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| Number | Title | Issue Date |
| 8183326 | Functionalized polymer A polymer includes directly bonded aromatic pendent groups and at least one moiety defined by one of the following formulas >N—N═CR1R2 or —N═N—CR1R2— where R1 and R2 (a... | 05/22/2012 |
| 8163855 | Method for bulk polymerization A method for polymerizing conjugated diene monomer into polydienes, the method comprising: polymerizing conjugated diene monomer within a liquid-phase polymerization mixture that includes conjugated diene monomer, a lanthanide-based catalyst system, dicyclopentadien... | 04/24/2012 |
| 8158725 | Functionalized polymers and tires therefrom A method for preparing a functionalized polymer, the method comprising providing a reactive polymer, where the reactive polymer includes a carbon anion, an oxygen anion, a sulfur anion, or a nitrogen anion, reacting the reactive polymer with carbon disulfide to form... | 04/17/2012 |
| 8158700 | Method of improving affinity between filler and polymers having a low degree of unsaturation Provided is a composition comprising at least one polymer having a degree of unsaturation of no more than about 50 mol %; a filler selected from the group consisting of carbon black, silica, and mixtures thereof; and a polymeric additive comprising a functional end ... | 04/17/2012 |
| 8148486 | Amine-containing alkoxysilyl-functionalized polymers An amine-containing alkoxysilyl-functionalized polymer, a method of preparing a reactive polymer functionalized with an alkoxysilane functionalizing agent and further reacted with an amino alcohol, the resulting polymer, and vulcanizates thereof. ... | 04/03/2012 |
| 8138248 | Method to improve cold flow resistance of polymers A method for preparing a polymeric composition, the method comprising providing a polymer cement including a polymer and a solvent, introducing an acetal or ketal of an alditol with the polymer cement, and isolating at least a portion of the polymer and the acetal o... | 03/20/2012 |
| 8124677 | Modified asphalt binders and asphalt paving compositions A modified asphalt binder composition prepared by combining asphalt binder, phosphorus pentasulfide, and less than 2.5 parts by weight unsaturated polymer, per 100 parts by weight asphalt binder, to thereby produce a modified asphalt binder composition characterized... | 02/28/2012 |
| 8119736 | Branched polymers and methods for their synthesis and use Branched polymers including multi-branched polymers, functionalized branched polymers, star-branched polymers, and dendigraft polymers. Methods for the synthesis of branched polymers and method for the use of branched polymers in tire components are also included. | 02/21/2012 |
| 8114921 | Hybrid polymer and method for making A macromolecule includes a polymer directly tethered or bonded to a polyatomic functionality. The polyatomic functionality can be located at a terminus of the polymer and can be generated concurrent with or soon after formation of the polymer. The macro-molecule can... | 02/14/2012 |
| 8106117 | Method to improve cold flow resistance of polymers A method for reducing the cold flow of a polymeric composition of matter by introducing polymer with the combination or reaction product of (i) an acetal or ketal of an alditol and (ii) (a) a hydrocarbylated boric acid, (b) an organoaluminum compound, or (c) both a ... | 01/31/2012 |
| 8101697 | Multi-functionalized high-trans elastomeric polymers A method for preparing multi-functional high-trans elastomeric polymers that have various applications such as in vulcanizable rubber compositions, moisture curable resin compositions, as well as other areas. ... | 01/24/2012 |
| 8097674 | Amino alkoxy-modified silsesquioxanes in silica-filled rubber with low volatile organic chemical evolution A vulcanizable rubber composition is presented that comprises an elastomer; a reinforcing filler selected from silica, carbon black, and mixtures thereof, a cure agent; and an amino alkoxy-modified silsesquioxane (AMS) comprising one or more compounds selected from ... | 01/17/2012 |
| 8088868 | Polymers functionalized with protected oxime compounds A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing conjugated diene monomer by employing a lanthanide-based catalyst to form a reactive polymer, and (ii) reacting the reactive polymer with a protected oxime compound.... | 01/03/2012 |
| 8071671 | Tread compositions with improved dynamic storage modulus A process for forming a tire component, the process comprising the steps of introducing a vulcanizable polymer, a curative, a first carbon black characterized by an iodine adsorption number, per ASTM D1510, that is greater than 60 g/kg, and a second carbon black cha... | 12/06/2011 |
| 8063165 | Functional polymers prepared with sulfur-containing initiators A method for forming a polymer including a sulfur-containing functional group, the method comprising introducing a sulfur-containing initiator defined by the formula with conjugated diene monomer and optionally copolymeriza... | 11/22/2011 |
| 8063153 | Functionalized polymer with linking group A functionalized polymer includes an elastomer, a terminal functional group including at least one heteroatom, and a unit intermediate the elastomer and the functional group; the intermediate unit includes a terminal moiety which, in its anionic form, is less basic ... | 11/22/2011 |
| 8058357 | Vulcanizable compositions and tire treads prepared therewith A method for preparing a tire tread, the method comprising vulcanizing a vulcanizable composition comprising a rubber component including a functionalized polymer and a cure system, where the cure system includes sulfur and a disulfide compound represented by the fo... | 11/15/2011 |
| 8058351 | Method for preparing low molecular weight polymers A process for producing low molecular weight polymers, the process comprising partially hydrogenating an unsaturated polymer to form a partially hydrogenated polymer, and reacting the partially hydrogenated polymer with an acyclic alkene in the presence of a metathe... | 11/15/2011 |
| 8053621 | Solvent treatment methods and polymerization processes employing the treatment methods A method for treating a hydrocarbon solvent, the method comprising continuously introducing a hydrocarbon solvent to a liquid medium containing hydrogen ions; allowing the hydrocarbon solvent to be in contact with the liquid medium for at least 1 minute; continuousl... | 11/08/2011 |
| 8039545 | Functionalized polymers A functionalized polymer includes a polymer chain and a terminal group linked to the chain through a functionality that contains one or more urethane groups. The functionalized polymer can be provided by reacting a nucleophile with a polymer having terminal iso(thio... | 10/18/2011 |
| 8030410 | Method for generating free radical capable polymers using carbonyl-containing compounds Provided is a method comprising reacting the anionic living end of a polymer that is end capped with a steric hindering compound with a carbonyl-containing compound to produce a polymer with a homolytically cleaveable group. An engineered plastic may then be produce... | 10/04/2011 |
| 8017696 | Tire compositions and vulcanizates thereof having improved silica reinforcement Vulcanizable elastomeric compositions and vulcanizates are prepared by employing a titanium compound. The titanium compound is believed to enhance the reaction between a silica particle and a silica-reactive compound. ... | 09/13/2011 |
| 8017695 | Method for producing functionalized cis-1,4-polydienes having high cis-1,4-linkage content and high functionality This invention relates to a method for producing functionalized cis-1,4-polydienes having a combination of a high cis-1,4-linkage content and a high functionality, the resulting polymers and the vulcanized products containing the polymers. The functionalized cis-1,4... | 09/13/2011 |
| 8008377 | Modified asphalt binders and asphalt paving compositions A process for preparing a modified asphalt binder composition, the process comprising mixing asphalt, an unsaturated polymer, and an organothionating agent to form a modified asphalt composition. ... | 08/30/2011 |
| 7999029 | Polyhedral-modified polymer A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain ci... | 08/16/2011 |
| 7998554 | Hydrophobic surfaces with nanoparticles Hydrophobic surfaces with water contact angles greater than 120 degrees are created by the deposition of nano-particles. A process for the synthesis of suitable nano-particles is described as well as a process for the deposition of the particles. ... | 08/16/2011 |
| 7994236 | Technique for purifying polymer compositions A method for preparing a polymer product, the method comprising polymerizing conjugated diene monomer, optionally together with vinyl aromatic monomer, within a hydrocarbon solvent by employing a lithium-containing initiator, thereby forming a living polymer cement,... | 08/09/2011 |
| 7981990 | Synthesis of a liquid polymer and a functionalized polymer A method comprising: (a) forming a living liquid polymer, wherein said living liquid polymer is anionically initiated and comprises a cation; (b) adding a functional initiator precursor of the formula FI-H, wherein H is hydrogen and FI is a functional group, said H ... | 07/19/2011 |
| 7964656 | Method of improving carbon black dispersion in rubber compositions A method for forming a vulcanizable composition of matter, the method comprising providing a polymer cement or latex comprising at least one rubber, adding at least one processing aid to the cement or latex to form a modified rubber cement or latex, isolating the ru... | 06/21/2011 |
| 7960463 | Tire treads including aluminum hydroxycarbonate Particular embodiments are directed toward a rubber mixture comprising (i) a rubber; and (ii) a filler component, where the filler component includes a filler selected from the group consisting of amorphous aluminum hydroxycarbonate, amorphous aluminum hydroxyoxycar... | 06/14/2011 |
| 7951876 | Multi-functional polymers A multi-functional polymer defined by the formula (Q-R¦n—Z—P2—Y where (Q-R)n is a functionality cluster, Q is a functional group, R is a multi-valent organic group, P2 is a long-chain polymer, n ... | 05/31/2011 |
| 7943696 | Use of sulfur containing initiators for anionic polymerization of monomers A vulcanized rubber composition comprising the vulcanization product of a functional polymer, where the functional polymer is defined by the formula where R is selected from C1 to C6 trialkyl-silyl gro... | 05/17/2011 |
| 7935184 | Method of preparing imidazolium surfactants The present invention provides a method for preparing an imidazolium surfactant using a mixing apparatus. The present invention also provides a nano-composite comprising a clay and the imidazolium surfactant, and a composition comprising a polymer and the nano-compo... | 05/03/2011 |
| 7932316 | Processable rubber composition A composition that includes functionalized polymers and one or more types of particulate filler exhibits both an increased gum Mooney viscosity and a decreased compound Mooney viscosity relative to a comparable composition that includes only one such functionalized ... | 04/26/2011 |
| 7928159 | Enhancing interactivity between amine-functionalized polymers and particulate fillers A process for providing interaction between particulate filler and a functionalized polymer involves a composition that includes at least three components: (1) a polymer that includes a functional group including an acidic cation of a primary or secondary amine func... | 04/19/2011 |
| 7923478 | Nanoporous polymeric material and preparation method A nanoporous material is provided. The pores of the nanoporous material are formed between nanoparticles that have a polymeric surface layer. The nanoporous material is produced by (a) suspending the nanoparticles in a medium material, wherein the nanoparticles are ... | 04/12/2011 |
| 7915375 | Metathesis interpolymers having terminal functional group(s) The disclosure relates to unsaturated metathesis interpolymers having at least one or more specified terminal functional groups. The interpolymers are prepared by metathesis polymerization, and are selected from 1,5-cyclooctadiene and cyclopentene, 1,5-cyclooctadien... | 03/29/2011 |
| 7915368 | Method for making alkoxy-modified silsesquioxanes A method is presented for making alkoxy-modified silsesquioxanes (AMS) or co-alkoxy-modified silsesquioxanes (co-AMS,) comprising the steps of (a) combining as a reaction mixture (i) water, (ii) an acid-stable solvent for the water, (iii) a solid strong cationic hyd... | 03/29/2011 |
| 7906592 | Polymers functionalized with imide compounds containing a protected amino group A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with an imide compound containing a protected amino group. ... | 03/15/2011 |
| 7902309 | Process and catalyst system for polydiene production Compositions and polydiene production processes involving catalyst systems comprising at least one lanthanide-containing compound, at least one alkylating agent, at least one halogen source, and at least one N,N-dihydrocarbylhydroxylamine. ... | 03/08/2011 |
