Crosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrro

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526258, 526260, 526263, 548543, 548550, 546177, C08F 2608

Patent

active

061244155

ABSTRACT:
What is described herein is a crosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone (VP) and monomer derived from 1-vinyl-3-(E)-ethylidene pyrrolidone (EVP).

REFERENCES:
patent: 5094867 (1992-03-01), Detering et al.
Howard et al., "4-Substituted-2,3,5-pyrrolidinetriones", J. AM Chem Soc., vol. 80, pp 3924-3928, 1958.

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