Storage-stabile, radiation-hardenable, NCO-free aqueous emulsion

Details Storage-stabile, radiation-hardenable, NCO-free aqueous emulsion Storage-stabile, radiation-hardenable, NCO-free aqueous emulsion

1986-07-18

1988-02-02

Marquis, Melvyn I.

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...

522 86, 524839, 528 61, 528 71, 528 75, C08G 1834

Patent

active

047229667

ABSTRACT:
A storage-stabile, radiation-hardenable, NCO-free aqueous emulsions based on ionic urethane-urea acrylates is disclosed. The emulsions are made up of partially acrylated cycloaliphatic polyisocyanates which have been acrylated by a hydroxyalkyl acrylate (to the extent of 10-60 equivalent-% NCO). These products are then reacted with polyhydroxy compounds (to the extent of 20-75 equivalent-% NCO), and then with sodium salts of aminocarboxylic acids (to the extent of 5-15 equivalent-% NCO), and finally they are reacted with water and/or aliphatic diamines (said aliphatic diamines in amounts corresponding to 1-5 equivalent-% NCO).
The reaction product of the cycloaliphatic polyisocyanate with the hydroxy acrylate compounds and the polyols is taken up into ordinary organic solvents, and these solvent-containing reaction products are converted with aqueous solutions of the sodium salts of aminocarboxylic acids and then with water and/or with an amount of aliphatic diamines corresponding to 1-5 equivalent-% NCO, whereafter the organic solvent is distilled off.

REFERENCES:
patent: 4039414 (1977-08-01), McGinniss
patent: 4070323 (1978-01-01), Vanderhoff
patent: 4147679 (1979-04-01), Scriven
patent: 4287039 (1981-09-01), Buethe
patent: 4310448 (1982-01-01), Reischl
patent: 4497932 (1985-02-01), Trovati

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