PROCESS FOR PREPARING GRAFT POLYMERS WITHOUT INITIATOR AND WITHOUT SOLVENT AND BITUMEN/POLYMER COMPOSITIONS COMPRISING SAID GRAFT POLYMERS

摘要

A process for preparing graft polymers from a polymer is based on conjugated diene units and a graft which is a thiol derivative. The process has an absence of solvent and any radical initiator. The graft polymer can be advantageously be used as additive for a bitumen/polymer composition and in particular permits thermoreversible cross-linking.