Process for the preparation of a rubber having polymer bound...

Details Process for the preparation of a rubber having polymer bound... Process for the preparation of a rubber having polymer bound...

C - Chemistry, Metallurgy

08

F

402/397

C08F 2/24 (2006.01) C08F 2/44 (2006.01) C08F 236/04 (2006.01)

Patent

CA 2036646

Abstract of the Disclosure PROCESS FOR THE PREPARATION OF A RUBBER HAVING POLYMER BOUND FUNCTIONALITY The present invention relates to a process for preparing a rubber containing polymer bound functionalities. The process comprises the emulsion polymerization at a temperature ranging from about 0°C to about 25°C of (a) at least one functionalized monomer that contains a polymerizable vinyl group; with (b) at least one copolymerizable conjugated diene monomer selected from the group consisting of butadiene-1,3, 2-chlorobutadiene-1,3, isoprene, piperylene and conjugated hexadienes; wherein the polymerization is conducted in the presence of from about 1 to about 70 parts by weight of a plasticizer based on 100 parts by weight of total monomers. The plasticizer functions as a cosolvent/dispersing agent for the functionalized monomer during the emulsion polymerization and as a plasticizer for the final polymer product.

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