Patent ID: 9079981
Filing Date: 2015-07-14
Classification: B60C,C08C,C08F,C08J,C08K

Abstract:
1. A polymer obtained by polymerization of a conjugated diene with a catalyst of the rare earths, whereby an intermediate polymer is formed and subsequently reacted with an oligomeric silicates of the formula X 3 —Si—(O—SiX 2 ) n —X, where X is an alcoholate of the formula OR, R is a saturated or partially unsaturated aliphatic hydrocarbon radical having from 1 to 30 carbon atoms, a cycloaliphatic hydrocarbon radical having from 5 to 30 carbon atoms, or an aromatic hydrocarbon radical having from 6 to 30 carbon atoms, and n is a number greater than 0, thereby forming the polymer, wherein the polymer has a bimodal molar mass distribution comprising a high molecular-weight fraction and a low molecular-weight fraction, wherein the high-molecular-weight fraction has a number average molar mass (M