Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1979-03-29
1981-07-07
Henderson, C. A.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 292TN, 528 71, 528 75, C08L 9100, C08G 1800
Patent
active
042773806
ABSTRACT:
Aqueous dispersions of polyurethane polymers in ammonium salt form are prepared by reacting diisocyanates with a polyhydroxy, carboxylic acid to form an isocyanate-terminated prepolymer that is united with an unsaturated fatty acid ester polyol to provide carboxylic-containing, water-dispersible polyurethanes having properties exhibited by organic solvent-based, oil-modified polyurethanes. The aqueous dispersions can be formed by neutralization of "oil-modified," carboxylic group-containing, water-dispersible polyurethanes with ammonium salt-forming materials such as ammonia and amines. The aqueous dispersions are especially desirable coating compositions.
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Rogemoser David R.
Williams Roy C.
Henderson C. A.
Textron Inc.
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