Patent ID: 6469106
Filing Date: 2002-10-22
Classification: C08C

Abstract:
A process for producing a modified diene polymer rubber, which comprises the steps of:(i) polymerizing a conjugated diene compound, or a combination of a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent in the presence of an alkali metal catalyst, thereby obtaining an active conjugated diene polymer having an alkali metal at the end thereof; and (ii) reacting the active conjugated diene polymer having an alkali metal at the end thereof with an amine compound represented by the following formula (1), thereby obtaining the modified diene polymer rubber, wherein each of R1, R2 and R3 is an alkyl group having 1 to 8 carbon atoms, R4 is an alkoxy or alkyl group having 1 to 8 carbon atoms, and n is an integer of 1 to 8.