Two package polymeric epoxy compositions having improved potlife

Details Two package polymeric epoxy compositions having improved potlife Two package polymeric epoxy compositions having improved potlife

1977-02-23

1978-11-21

Pertilla, Theodore E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260836, 260837R, 428418, 428463, C08L 3302, C08L 6302

Patent

active

041265963

ABSTRACT:
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 interpolymer.Stability of the addition interpolymer prior to mixing is improved by utilizing therein monomers which provide aminolysis-resistant groups in the interpolymer.

REFERENCES:
patent: 3494847 (1970-02-01), Yurcheshen
patent: 3719629 (1973-03-01), Martin et al.
patent: 3945963 (1976-03-01), Levine et al.

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