Process for the preparation of a masterbatch rubber having polym

Details Process for the preparation of a masterbatch rubber having polym Process for the preparation of a masterbatch rubber having polym

1993-04-22

1994-02-08

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524723, 524773, 524776, 524791, C08K 549

Patent

active

052849074

ABSTRACT:
The present invention relates to a process for preparing a masterbatch rubber containing polymer bound functionalized moieties. The process comprises the emulsion polymerization at a temperature from 40.degree. C. to 100.degree. 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 (1) from 2 to 30 parts by weight of an ionic surfactant per 100 parts by weight of organic components and (2) about 10 to about 70 parts by weight of a plasticizer based on 100 parts by weight of total monomers. Other than the water, ionic surfactant, and the copolymerizable conjugated diene, the plasticizer functions as the sole solvent for the functionalized monomer during the emulsion polymerization and additionally functions as a plasticizer for the final polymer product.

REFERENCES:
patent: 3725332 (1973-04-01), Carrock
patent: 3950294 (1976-04-01), Connelly et al.
patent: 4701507 (1987-10-01), Mate et al.

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