Process for preparing a thermoplastic resin

Details Process for preparing a thermoplastic resin Process for preparing a thermoplastic resin

1974-04-29

1976-07-06

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526294, 526295, 526335, C08d 102, C08d 304

Patent

active

039680886

ABSTRACT:
A process for preparing a substantially gel-free thermoplastic resin having a softening point of 50.degree.-180.degree.C., an iodine value not exceeding 180 and a Gardner color of not more than 5 by heating at a temperature of 250.degree.-300.degree.C. a solution of a monomeric mixture consisting of 90-65% by weight of a cyclopentadiene type monomer and 10-40% by weight of a chain conjugated diolefin monomer of 4-5 carbon atoms at a monomer concentration of 70-95% by weight in a hydrocarbon solvent inert to thermal polymerization conditions to effect the thermal polymerization of the monomeric mixture and thereafter recovering the resulting polymer from the solvent.

REFERENCES:
patent: 2352979 (1944-07-01), Soday
patent: 2352980 (1944-07-01), Soday
patent: 3084147 (1963-04-01), Wilks
patent: 3306868 (1967-02-01), Adrian

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