Method for the suspension polymerization of a vinyl chloride/all

Details Method for the suspension polymerization of a vinyl chloride/all Method for the suspension polymerization of a vinyl chloride/all

1996-09-17

1998-05-26

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526228, C08F 220

Patent

active

057566178

ABSTRACT:
A process for polymerizing vinyl chloride alone or a mixture of vinyl chloride and other vinyl monomer(s) with hydroxy containing monomer(s), and the copolymer obtained thereby. The hydroxy containing monomer(s) is obtained by the partial allylation of dihydroxy or polyhydroxy alcohols. The copolymers are prepared by suspension polymerization. The presence of the hydroxyl groups significantly modifies the characteristics of the polymers. Plasticizer-take-up is increased and dry-time is reduced significantly. Furthermore, the hydroxyl groups become the sites for postpolymerization reactions due to their polarity and reactivity.

REFERENCES:
patent: 2798053 (1957-07-01), Brown
patent: 3705883 (1972-12-01), Wingler
patent: 3806496 (1974-04-01), Shorr
patent: 5091487 (1992-02-01), Hori

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