Process for producing cyclopentadiene resin

Details Process for producing cyclopentadiene resin Process for producing cyclopentadiene resin

1980-09-17

1982-05-18

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526283, 526308, C08F 202, C08F 206

Patent

active

043304486

ABSTRACT:
In a process for producing a cyclopentadiene resin having a regulated softening point which comprises heat-copolymerizing a cyclopentadiene monomer and a comonomer copolymerizable therewith, the improvement which comprises polymerizing (A) a monomeric mixture having a low content of a cyclopentadiene monomer, then adding (B) a cyclopentadiene monomer or (C) a monomeric mixture having a high content of a cyclopentadiene monomer, and continuing the polymerization.

REFERENCES:
patent: 4146691 (1979-03-01), Wada et al.

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