Aqueous isocyanate emulsions and their use as binders in a...

Details Aqueous isocyanate emulsions and their use as binders in a... Aqueous isocyanate emulsions and their use as binders in a...

C - Chemistry, Metallurgy

08

K

400/111, 18/958,

C08K 5/42 (2006.01) C08G 18/70 (2006.01) C08L 75/04 (2006.01) C08L 97/02 (2006.01)

Patent

CA 1152686

ABSTRACT OF THE DISCLOSURE The present invention relates to aqueous isocyanate emulsions and their use as binders in the production of shaped articles. These emulsions contain (A) from 80 to 20% by weight, based on the total emulsion, of water; (B) from 18 to 79% by weight, based on the total emulsion, of an organic polyisocyanate; (C) from 0.5 to 15 % by weight, based on the total emulsion of a sulfonic acid corres- ponding to the formula: R1--- (SC3H)n wherein n represents the integers 1 or 2, and R1 represents an aromatic hydrocarbon radical containing from 6 to 14 carbon atoms, an aliphatic hydrocarbon radical containing from 10 to 18 carbon atoms, a cyclo- aliphatic hydrocarbon radical containing from 6 to 15 carbon atoms, an araliphatic hydrocarbon radical containing from 7 to 15 carbon atoms or an alkaromatic hydro- carbon radical containing from 7 to 24 carbon atoms; and (D) from 0 to 10% by weight, based on the polyisocyanate, of a nonionic, surface- active agent as an emulsifier.

351634

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