Patent ID: 8623967
Filing Date: 2014-01-07
Classification: C08C,C08F,C08K,C08L

Abstract:
1. A method for preparing a functionalized cis-1,4-polydiene polymer, the method comprising the steps of: (i) polymerizing conjugated diene monomer with a lanthanide-based catalyst to form a reactive cis-1,4-polydiene polymer; and (ii) reacting the reactive polymer with a nitroso compound to thereby form a functionalized cis-1,4-polydiene defined by the formula: where π is a cis-1,4-polydiene chain having a cis-1,4-linkage content of greater than 60%, where β is a mono-valent organic group, and where R′ is a hydrogen atom or a mono-valent organic group.