Producing heat stable vinyl chloride polymers at low temperature

Details Producing heat stable vinyl chloride polymers at low temperature Producing heat stable vinyl chloride polymers at low temperature

1976-03-19

1978-01-24

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526321, 526328, 526330, 526343, 526344, 526345, C08F 1406

Patent

active

040705340

ABSTRACT:
In the bulk or suspension polymerization of vinyl chloride and copolymerization of vinyl chloride with vinylidene monomers containing a terminal CH.sub.2 .dbd.CH< group, increased heat stability is obtained in the polymers by conducting the polymerization at low temperatures in the presence of tetrahydrofuran (THF).

REFERENCES:
patent: 3523109 (1970-08-01), Diessel et al.
patent: 3631009 (1971-12-01), Meyer
patent: 3812086 (1974-05-01), Stack

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