Patent application number | Description | Published |
20080287601 | Silane-Sulfide Chain End Modified Elastomeric Polymers - A chain end modified polymer comprising the reaction product of a living anionic elastomeric polymer and a silane-sulfide modifier A preferred class of modifiers includes compounds represented by the formula: (RO) | 11-20-2008 |
20110082253 | MODIFIED ELASTOMERIC POLYMERS - The invention provides a elastomeric polymer composition comprising the reaction product of at least the following: i) a living anionic elastomeric polymer; ii) a silane modifier compound represented by the Formula I or Formula 2: (RIO) | 04-07-2011 |
20110218300 | PROCESS TO REMOVE SILANOL FROM THE PREPARATION OF A MODIFIED POLYMER - The invention provides a method for a preparation of a polymer selected from the following: (a) modified interpolymer comprising, in polymerized form, a conjugated diene and an aromatic alpha-olefin, or (b) a modified polymer comprising, in polymerized form, a conjugated diene; and wherein said method comprising at least the following steps: polymerizing monomers comprising at least one conjugated diene monomer in at least one polymerization reactor, in the presence of at least one solvent, to form the polymer, optionally coupling a fraction of the polymer chains using at least one coupling agent, modifying the polymer with at least one modifying agent, in at least one reactor, in the presence of the at least one solvent, to form a modified polymer solution; optionally, contacting the modified polymer solution with at least one proton donating compound; contacting the modified polymer solution with water; removing the at least one solvent; contacting the removed solvent with at least one material that will react with, and/or absorb, silanol to form a purified solvent, recirculating the purified solvent back to the at least one polymerization reactor or to a storage container. | 09-08-2011 |
20110301261 | Silane-Sulfide Chain End Modified Elastomeric Polymers - A chain end modified polymer comprising the reaction product of a living anionic elastomeric polymer and a silane-sulfide modifier A preferred class of modifiers includes compounds represented by the formula: (RO)x(R) | 12-08-2011 |
20120252952 | Vulcanized Elastomeric Compositions - A vulcanized elastomeric composition includes (i) a polymer reaction product of an anionic elastomeric polymer and a silane-sulfide modifier and (ii) a second elastomeric polymer different from the polymer reaction product such that the polymer reaction product comprises at least 30 weight percent of a total amount of the polymer reaction product and the second elastomeric polymer. Methods are described for making the polymer reaction product, their use in preparing vulcanized elastomeric compositions, and articles made from such compositions, including pneumatic tires, tire treads, belts, and the like. | 10-04-2012 |
20120316289 | MODIFIED POLYMER COMPOSITIONS - The invention provides a first composition comprising at least the following: i) a modified polymer comprising at least one branched modified polymer macromolecule (b1) and at least one linear modified polymer macromolecule (a1), and wherein the at least one branched modified polymer macromolecule and the at least one linear modified polymer macromolecule each, independently, comprises at least one amine group selected from the group consisting of formulas (1 A-1F), each as described above Formula 1A, Formula 1B, Formula 1C, Formula 1D, Formula 1E, Formula 1F, and combinations thereof; and wherein the at least one branched modified polymer macromolecule further comprises one of the structures (ib1-ib4) as described above, and the at least one linear modified polymer macromolecule further comprises one of the structures (iib1-iib2) as described above. | 12-13-2012 |
20130202830 | MODIFIED POLYMER COMPOSITIONS - The invention provides a first composition comprising at least the following: i) a modified polymer comprising at least one branched modified polymer macromolecule (b1) and at least one linear modified polymer macromolecule (a1), and wherein the at least one branched modified polymer macromolecule and the at least one linear modified polymer macromolecule each, independently, comprises at least one amine group selected from the group consisting of formulas (1A-1F), each as described above: and combinations thereof; and wherein the at least one branched modified polymer macromolecule further comprises one of the structures (ib1-ib4) as described above, and the at least one linear modified polymer macromolecule further comprises one of the structures (iib1) as described above (see Formula 3A) | 08-08-2013 |
20150086735 | Modified Polymer Compositions - A process for the continuous preparation of modified elastomeric polymers includes (i) providing and polymerizing at least one conjugated diene monomer and, optionally, one or more aromatic vinyl monomer in the presence of an anionic initiator and a compound according to Formula I, e.g. 2,2-di-(2-oxolanyl)propane or a derivative thereof, to provide a living anionic polymer; and (ii) adding a “sulfanylsilane” compound to the living anionic polymer. Elastomeric polymers obtainable according to the above process and compositions including the elastomeric polymer and, optionally, further constituents such as oil, filler and/or vulcanizing agent are described. A process for the preparation of a cross-linked elastomeric polymer that includes adding a vulcanizing agent to the elastomeric polymer, as well as articles and compositions that include the elastomeric polymer, the cross-linked elastomeric polymer or both are described. | 03-26-2015 |
20150087768 | Elastomeric Polymer Compositions - An elastomeric polymer composition formed from a reaction product of a living anionic elastomeric polymer and sulfur containing chain end modifier with the general formula: | 03-26-2015 |