Process for preparing prepolymers or precopolymers of diallyl ph

Details Process for preparing prepolymers or precopolymers of diallyl ph Process for preparing prepolymers or precopolymers of diallyl ph

1976-09-17

1978-04-11

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 328R, 526322, 528483, 528495, 528496, 528498, C08F 610

Patent

active

040838196

ABSTRACT:
An improved process for preparing prepolymers or precopolymers of diallyl phthalate in a solid state from a prepolymer or precopolymer phase separated by the liquid phase extraction in a liquid state of fluidity and containing 10-30% by weight of the extractant, which comprises forming the prepolymer or precopolymer phase in a liquid state of fluidity and containing the extractant into a sheetlike form prior to solidifying it by cooling, heating prepolymer or precopolymer phase under foaming conditions accompanied by the evaporation of the extractant, and thereafter solidifying the prepolymer or precopolymer.

REFERENCES:
patent: 2612492 (1945-09-01), Tawney
patent: 3424729 (1969-01-01), Lanaka et al.

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