Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1982-09-16
1984-10-23
Henderson, Christopher A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526 84, 526 85, 526204, C08F 238, C08F 242
Patent
active
044789866
ABSTRACT:
An improved process for terminating the suspension polymerization reaction of vinyl chloride monomer into polyvinyl chloride which comprises adding hindered phenols of the structure presented hereinafter to the polymerization reaction at a point in time when a predetermined amount of monomer conversion has occurred.
REFERENCES:
patent: 3225108 (1965-12-01), Sturgis
patent: 3926910 (1975-12-01), Mowdood
Ciba-Geigy Corporation
Falber Harry
Henderson Christopher A.
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