Aqueous polyurethane compositions

Details Aqueous polyurethane compositions Aqueous polyurethane compositions

1980-12-15

1982-06-15

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C08L 7506

Patent

active

043350291

ABSTRACT:
A stable aqueous dispersion latex of a room temperature curing polyurethane forming films resistant to water and organic solvents is disclosed, the polyurethane containing units derived from melamine, in addition to units derived from diisocyanate and difunctional reactants, in the polymer chain, pendant water-dispersing carboxylic salt groups, and room temperature curable and cross-linking N-methylol hydrazide termini, and methods for making such dispersion.

REFERENCES:
patent: 3756992 (1973-09-01), Dieterich
patent: 4046729 (1977-09-01), Scriven et al.
patent: 4147679 (1979-04-01), Scriven et al.
patent: 4203883 (1980-05-01), Hangauer, Jr.

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