Dual cure rate water-based coating compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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523172, 523413, 523416, 523223, 523450, 524 60, 524270, 524276, 524475, 524512, 524542, C08L 6132, C08L 6130, C08L 6300

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active

048124931

ABSTRACT:
A two component water-based composition which cures in two stages, an initial rapid curing stage and a slower curing stage, comprising as the first component, a mixture of a polyaldehyde chosen from the group consisting of glyoxal glutaraldehyde and derivatives of glyoxal and gluteraldehyde, and a water dispersible component chosen from the group consisting of poxy resin emulsions which can be emulsified in water, synthetic latexes stable at about pH 7 or less, low molecular weight resin emulsions, epoxy ester emulsions, water emulsified alkyds, and cationic, anionic and non-ionic asphalt emulsions and, as the second component, the non-gel reaction product of N,N'-bis(methoxymethyl) uron and a polyamine chosen from a group consisting of primary and secondary amines and/or a monoamine.

REFERENCES:
patent: 4461351 (1984-07-01), Falk
patent: 4487889 (1984-12-01), Craun
patent: 4490510 (1984-12-01), Cummings
patent: 4525535 (1985-06-01), Craun
patent: 4542180 (1985-09-01), Carlson
patent: 4574145 (1986-03-01), Cummings
patent: 4608410 (1986-08-01), Borovicka
patent: 4683260 (1987-07-01), Wickert

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