Two-package polymeric epoxy compositions having improved...

Details Two-package polymeric epoxy compositions having improved... Two-package polymeric epoxy compositions having improved...

C - Chemistry, Metallurgy

08

L

402/166, 402/182

C08L 63/00 (2006.01) C08L 33/02 (2006.01) C08L 35/00 (2006.01) C09D 3/76 (1980.01)

Patent

CA 1141890

Abstract of the Disclosure Two-package polymeric compositions which form cured products having excellent stain and solvent resistance and having improved potlife comprise a polyepoxide and an addition interpolymer containing pendent salt groups formed by reacting carboxyl groups with a hindered amine and pendent amine groups formed by reacting carboxyl groups with an alkylenimine. The addition interpolymer when mixed with the polyepoxide reacts to form a cured, hard, stain and solvent resistant material. The stability of the mixed compositions, i.e., its potlife, is lengthened by utilizing a sterically-hindered tertiary amine to form the salt groups of the inter- polymer. Stability of the addition interpolymer prior to mixing is improved by utilizing therein monomers which provide aminolysis-resistant groups in the interpolymer.

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