Process for the preparation of polymers of vinylphosphonic acid

Details Process for the preparation of polymers of vinylphosphonic acid Process for the preparation of polymers of vinylphosphonic acid

1983-12-27

1987-09-29

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526228, 526278, C08F 438, C08F 434

Patent

active

046969870

ABSTRACT:
Process for the preparation of polymers of vinylphosphonic acid in protic diluents with the aid of catalysts which form free radicals, which comprises heating vinylphosphonic acid at temperatures of 40.degree. to 130.degree. C. in a total of 10 to 150% by weight of protic diluents for a total of 4-60 hours in the presence of 1.0 to 5.5% by weight of aliphatic peroxy-esters, diacyl peroxides and/or aliphatic azo compounds which decompose by half in one hour at temperatures below 122.degree. C.

REFERENCES:
patent: 3297663 (1967-01-01), Herbst
patent: 4033983 (1977-07-01), Starks
patent: 4342857 (1982-08-01), Gaffar

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