Aqueous compositions for use in the production of crosslinked po

Details Aqueous compositions for use in the production of crosslinked po Aqueous compositions for use in the production of crosslinked po

1989-03-30

1990-05-15

Ivy, C. Warren

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524591, 524539, 524501, 528 45, C08L 6300, C08L 7504

Patent

active

049258850

ABSTRACT:
The present invention is directed to an aqueously dispersed, heat-curable coating composition comprising
(a) a water dispersible, blocked polyisocyanate containing chemically incorporated anionic hydrophilic groups, at least a portion of which are neutralized with volatile organic compounds,
(b) a water dispersible, hydroxyl-terminated polyurethane prepolymer containing chemically incorporated anionic hydrophilic groups, at least a portion of which are neutralized with volatile organic compounds and
(c) an epoxy resin which remains stably dispersed in said coating composition.
The present invention is also directed to coatings prepared from the above coating composition.

REFERENCES:
patent: 3663652 (1972-05-01), Cannon et al.
patent: 3971745 (1976-07-01), Carlson et al.
patent: 4098933 (1978-07-01), Burkhardt et al.
patent: 4284544 (1981-08-01), Wegner et al.
patent: 4306998 (1981-12-01), Wenzel
patent: 4403085 (1983-09-01), Christenson et al.
patent: 4608413 (1986-08-01), Nachtkamp et al.
patent: 4740496 (1988-04-01), Vanier
patent: 4826894 (1989-05-01), Markusch et al.

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