Nitrile emulsion polymers having improved adhesion properties

Details Nitrile emulsion polymers having improved adhesion properties Nitrile emulsion polymers having improved adhesion properties

C - Chemistry, Metallurgy

08

L

400/6468

C08L 9/00 (2006.01) C08C 1/15 (2006.01) C08L 9/02 (2006.01) C08L 9/04 (2006.01) C09D 109/00 (2006.01) C09D 109/02 (2006.01) C09D 109/04 (2006.01) C09J 109/00 (2006.01) C09J 109/02 (2006.01) C09J 109/04 (2006.01)

Patent

CA 2004645

Nitrile rubber emulsion latexes containing anionic emulsifying aids such as surfactants are treated with large amounts of cationic polymeric coagulants to form innocuous water insoluble residues. The polymeric coagulants chemically react with the anionic emulsifying aids by forming polymer adducts whereby the adducts are physically maintained in the nitrile rubber. The need for complete or thorough washing steps, which is generally tedious, expensive, and commercially impractical, is thus reduced or eliminated. Moreover, the dried latex particles have been found to have improved properties such as water resistance, adhesion, and the like.

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