Polymeric compositions of co- and terpolymers

Details Polymeric compositions of co- and terpolymers Polymeric compositions of co- and terpolymers

1983-05-09

1985-07-02

Henderson, Christopher A.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

524394, 524547, 526241, 526287, C08F22802

Patent

active

045269513

ABSTRACT:
The present invention relates to polymeric compositions formed from sulfonated co- or terpolymers which are formed by a free radical co- or terpolymerization process, wherein the resultant co- or terpolymers have an Mn of about 5,000 to 200,000 and these co- or terpolymers have at least about 0.5 weight percent of chemically combined sulfur therein. The free radical co- or terpolymerization process of the instant invention can be generally described as a free radical emulsion polymerization of at least one conjugated diene or a mixture of styrene and butadiene with a sulfonate monomer which is water soluble, at a temperature sufficient to cause polymerization, wherein the initiator is preferably based on a peroxide initiator accelerated by a reducing agent, and suitable surfactants are employed. Upon completion of the free radical polymerization, the resultant latex is coagulated and the water insoluble polymer is recovered.

REFERENCES:
patent: 2348705 (1944-05-01), Alderman
patent: 3306871 (1967-02-01), Miller
patent: 3396136 (1968-08-01), Dickerson

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