Patent application number | Description | Published |
20120071583 | POLYMER COMPOSITIONS WITH IMPROVED COLD FLOW - A method for preparing a polymeric composition, the method comprising providing a polymer cement including a polymer and a solvent; introducing a cold-flow inhibitor with the polymer cement, where the cold-flow inhibitor is selected from the group consisting of vicinal diamides, vicinal diureas and vicinal amide-ureas; and isolating at least a portion of the polymer and the cold-flow inhibitor from the solvent to provide a polymeric composition including the polymer and the cold-flow inhibitor. | 03-22-2012 |
20120259056 | COMPOSITIONS AND METHOD FOR PRODUCING POLY-AMINOFUNCTIONALIZED POLYMERIZATION INITIATORS AND CORRESPONDING POLYMERS - Compositions and methods for producing polymerization initiators comprising at least two protected primary amine groups. Polymers prepared using such polymerization initiators can comprise a residue of the polymerization initiator and can initially comprise the at least two protected primary amine groups. Such polymers can undergo a deprotection process thereby yielding a polymer having one or more unprotected primary amine groups. Polymers having primary amine groups can be employed in rubber compositions, which have a variety of potential applications, such as, for example, in tire manufacturing. | 10-11-2012 |
20120259082 | VINYL MODIFIER COMPOSITION AND PROCESSES FOR UTILIZING SUCH COMPOSITION - An oxolanyl compound-containing composition comprising specified amounts of the meso-isomer of one or more of the oxolanyl compounds of specified structure is provided. Also provided are methods for the use of such compositions as vinyl content modifiers in polymerization processes. Formula (I) | 10-11-2012 |
20130030133 | ANIONIC POLYMERIZATION METHODS FOR PRODUCING FUNCTIONALIZED POLYMERS - A process for producing functional polymer, the process comprising the steps of reacting an anionic initiator including a functional group with a stabilizing monomer to produce a stabilized initiator, reacting the stabilized initiator with monomer capable of being anionically polymerized to produce a polymer, and terminating the polymer. | 01-31-2013 |
20130066008 | AMINOSILANE INITIATORS AND FUNCTIONALIZED POLYMERS PREPARED THEREFROM - Metallated aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing an aminosilane-functionalized polymer using the metallated aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallated aminosilane compounds results in rubber compositions for use in tires comprising an aminosilane functionalized polymer. | 03-14-2013 |
20130116360 | MIXING OF TELECHELIC RUBBER FORMULATIONS - The present disclosure is directed to methods for preparing rubber compositions where those rubber compositions comprise at least one telechelic polymer and at least one filler. The methods make use of a mixer that includes a mixing chamber and at least one rotor with wings of specified configuration. Use of the disclosed methods yields a rubber composition with improved properties including an improved dispersion index after master batch mixing as compared to the same rubber composition mixed using standard 4 wing mixers. | 05-09-2013 |
20130190423 | Rubber Compositions Including Metal Phosphate Esters - A composition includes a diene rubber and a metal phosphate ester of the formula: | 07-25-2013 |
20130197140 | ESTERS OF CYCLOHEXANE POLYCARBOXYLIC ACIDS AS PLASTICIZERS IN RUBBER COMPOUNDS - It has been discovered that the use of a plasticizer, an ester of a cyclohexanepolycarboxylic acid, especially a 1,2-cyclohexanedicarboxylic acid ester, that is environmentally non-toxic, can replace environmentally unfriendly phthalate plasticizers, such as dioctyl phthalates used in vulcanizable rubber compositions, especially for tires, on a one to one weight basis (phr) without sacrificing beneficial rubber properties. | 08-01-2013 |
20130281588 | RUBBER COMPOSITIONS WITH FILLER AND KETOXIME OR KETIXMO SILANE - A composition includes an elastomer and a ketoximo silane or a ketoxime additive. The ketoximo silane corresponds to Formula I: where D is selected from a C | 10-24-2013 |
20130281645 | Aminosilane Initiators And Functionalized Polymers Prepared Therefrom - Metallated aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing an aminosilane-functionalized polymer using the metallated aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallated aminosilane compounds results in rubber compositions for use in tires comprising an aminosilane functionalized polymer. A telechelic polymer may result from use of the metallated aminosilane compound as a functional terminator. | 10-24-2013 |
20130296480 | PREPARATION OF FUNCTIONAL POLYMERS PHOSPHORUS-CONTAINING ORGANOMETAL INITIATORS - A method for preparing a functionalized polymer, the method comprising: polymerizing conjugated diene monomer, optionally together with comonomer, using a phosphorus-containing organometal initiator. | 11-07-2013 |
20130327254 | Amino Alkoxy-Modified Silsesquioxanes And Method Of Preparation - An amino alkoxy-modified silsesquioxane (AMS) comprising one or more compounds selected from the group consisting of an amino AMS, an amino/mercaptan co-AMS, an amino/blocked mercaptan co-AMS, mixtures thereof, and a weak acid-neutralized solid or aqueous solution thereof, and a method of making the amino AMS, are presented. The compounds are useful in compounding, processing, cure and storage of silica-reinforced rubbers because they contain low levels of volatile organic compounds (VOC). | 12-12-2013 |
20130331520 | STABILIZATION OF POLYMERS THAT CONTAIN A HYDROLYZABLE FUNCTIONALITY - A process for treating a polymer having a hydrolyzable functionality, the process comprising:
| 12-12-2013 |
20140031471 | Stabilization Of Polymers That Contain A Hydrolyzable Functionality - A process for treating a polymer having a hydrolyzable functionality, the method comprising: (i.) providing a polymer having hydrolyzable functionality; and (ii.) introducing a stabilizing agent to the polymer, where the stabilizing agent is defined by the formula (I) where ÷ is a hydrolyzable group that forms an acidic species upon hydrolysis, where R | 01-30-2014 |
20140039107 | MULTIPLE-ACID-DERIVED METAL SOAPS INCORPORATED IN RUBBER COMPOSITIONS AND METHOD FOR INCORPORATING SUCH SOAPS IN RUBBER COMPOSITIONS - A composition includes a polymer matrix, a multiple-acid-derived metal soap, wherein the metal has an oxidation state of +3 or +4. An associated method for making a rubber composition includes the steps of: combining a solvent and a multiple carboxylic, phosphonic, phosphoric, sulfuric, or sulfonic acid, or mixtures thereof, and mixing to form solution A; adding a source of metal ions to solution A and mixing to form a product A, the metal being selected from the metals having an oxidation state of +3 or +4, whereby product A includes a multiple-acid-derived metal soap; and combining the multiple-acid-derived metal soap with a diene rubber. A method of making a tire component includes the steps of: combining a solvent and a multiple carboxylic, phosphonic, phosphoric, sulfuric, or sulfonic acid, or mixtures thereof, and mixing to form solution A; adding a source of metal ions to solution A and mixing to form a product A, the metal being selected from the metals having an oxidation state of +3 or +4, whereby product A includes a multiple-acid-derived metal soap; combining the multiple-acid-derived metal soap with a diene rubber; and molding and vulcanizing the rubber composition into a tire component. | 02-06-2014 |
20140275428 | Copolymers Of Conjugated Dienes And Vinyl Organophosphines Prepared By Anionic Polymerization - A process for preparing a copolymer including one or more phosphorus-containing mer units, the process comprising anionically polymerizing conjugated diene monomer, vinyl organophosphine monomer, and optionally monomer copolymerizable therewith. | 09-18-2014 |
20140357795 | Method For Producing Polydienes And Polydiene Copolymers With Reduced Cold Flow - A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer; (ii) reacting the reactive polymer with a polyisocyanate having a functionality of X to form an intermediate polymer product; and (iii) reacting the intermediate polymer product with a polyol having a functionality of Y to form the coupled polymer product, where X+Y≧5. | 12-04-2014 |
20150065673 | Preparation Of Functional Polymers Using Phosphide Initiators - A method of preparing a polymer, the method comprising: metalating an organophosphine compound in the substantial absence of monomer to form a metalated organophosphine; and introducing the metalated organophosphine to monomer including conjugated diene monomer to form a reactive polymer. | 03-05-2015 |