Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1989-06-06
1991-04-09
Henderson, Christopher
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
524569, 526202, 5263232, C08F 220, C08F22020
Patent
active
050066234
ABSTRACT:
A process for preparing a vinyl chloride copolymer which comprises polymerizing a vinyl chloride monomer or a mixture of a major proportion of a vinyl chloride monomer with a minor proportion of a copolymerizable monomer and at least one crosslinking agent selected from polyhydric alcohol diglycidyl ether diacrylates and dimethacrylates. The crosslinking agent is added to the reaction system after polymerization of the vinyl chloride monomer or the mixture proceeds to a certain extent. By this, the resultant copolymer has good processability and good mechanical and electric characteristics.
REFERENCES:
patent: 4816539 (1989-03-01), Watanabe
Watanabe Jun-ichi
Yokota Tohru
Henderson Christopher
Shin-Etsu Chemical Co. , Ltd.
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