Vinyl chloride suspension polymerization

Details Vinyl chloride suspension polymerization Vinyl chloride suspension polymerization

1975-06-12

1976-09-07

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 72, 526230, 526321, C08F21814, C08G 6300, C08F21400, C08F11402

Patent

active

039793664

ABSTRACT:
An improved process for the suspension polymerization of vinyl chloride homopolymers is accomplished by the addition of small amount of chain extending agent to the polymerization formula allowing the polymerization to be run at a higher temperature thus making better use of the reactor's heat removal capability. More efficient use of initiator is also accomplished while producing polyvinyl chloride having the desired molecular weight dependent physical properties. The process also allows a faster rate of polymerization.

REFERENCES:
patent: 2897169 (1959-07-01), Dazzi
patent: 3141850 (1964-07-01), Lybeck
patent: 3230203 (1966-01-01), Kuhne
patent: 3539488 (1970-10-01), Klopfer et al.

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