Preparation of crosslinked polyurethane ionomer dispersions

Details Preparation of crosslinked polyurethane ionomer dispersions Preparation of crosslinked polyurethane ionomer dispersions

1983-09-08

1985-03-26

Ivy, C. Warren

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...

524591, C08L 7504, C08G 1810

Patent

active

045074313

ABSTRACT:
Aqueous dispersions of crosslinked polyurethane ionomers can be advantageously obtained by a method in which polyurethane prepolymers possessing salt groups and aliphatically and/or cycloaliphatically bonded terminal isocyanate groups, in a water-miscible organic solvent, are mixed with polyfunctional polyisocyanates, the resulting solution is dispersed in water and the organic solvent is evaporated off.

REFERENCES:
patent: 3539483 (1970-11-01), Keberle
patent: 4066591 (1978-01-01), Seriven
patent: 4108814 (1978-08-01), Reiff
patent: 4387181 (1983-06-01), Brown

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