Chlorinated or chlorosulfonated ethylene vinyl/acetate...

Details Chlorinated or chlorosulfonated ethylene vinyl/acetate... Chlorinated or chlorosulfonated ethylene vinyl/acetate...

C - Chemistry, Metallurgy

08

F

402/326, 402/509

C08F 8/20 (2006.01) C08F 8/38 (2006.01) C09D 3/74 (1985.01)

Patent

CA 1256647

ABSTRACT OF THE DISCLOSURE CHLORINATION OR CHLOROSULFONATED ETHYLENE/VINYL ACETATE COPOLYMER FOR USE IN PAINTS A copolymer for use in corrosion-resistant paints which comprises a chlorinated or chlorosulfonated ethylene/vinyl acetate copolymer made from an ethylene/vinyl acetate copolymer resin having a melt index of about 300-10,000 and having a vinyl acetate content of from about 10-30 weight percent, said chlorinated or chlorosulfonated copolymer having a glass transition temperature of from about 15-50°C, a combined chlorine content of from about 42-56 weight percent, from about 2-6 acetate groups per 100 backbone carbon atoms of the chlorinated or chlorosulfonated ethylene/vinyl acetate copolymer, and, optionally, up to about 5 sulfonyl chloride groups per 100 backbone carbon atoms of the chlorosulfonated ethylene/vinyl acetate copolymer and sufficient chlorine atoms attached directly to the copolymer backbone to bring the total degree of substitution of the backbone carbon atoms of the chlorinatea or chlorosulfonated copolymer to about 30-50%.

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