C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/480
C08F 26/10 (2006.01)
Patent
CA 1211892
FDN-1383/1399 PREPARATION OF POLYVINYLPYRROLIDONE OR VINYL- PYRROLIDONE/VINYL ACETATE COPOLYMERS OF VARIOUS MOLECULAR WEIGHTS USING A SINGLE INITIATOR SYSTEM Abstract of the Disclosure Vinylpyrrolidone or vinylpyrrolidone and vinyl acetate monomers are polymerized using free radical initiator consisting of t-Butylperoxypivalate and preferably in solvent consisting essentially of water, isopropyl alcohol, sec. butyl alcohol or mixtures thereof to produce polyvinylpyrrolidone or vinylpyrrol- idone/vinyl acetate copolymer.
433058
Barabas Eugene S.
Cho James R.
G. A. F. Corporation
Smart & Biggar
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