Hydrophilic polyurethane emulsions and materials produced theref

Details Hydrophilic polyurethane emulsions and materials produced theref Hydrophilic polyurethane emulsions and materials produced theref

1989-01-30

1990-04-24

Welsh, Maurice J.

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 7508

Patent

active

049201727

ABSTRACT:
Solvent-free water-based emulsions of hydrophilic polyurethane polymers, their preparation and solvent-free coatings produced from the emulsions are described. Also described are compositions produced by subjecting a homogeneous blend of a curable polymer precursor such as rubber latex and the polyurethane emulsion to curing conditions. Moisture permeable membranes, water swellable sealants, extruded shapes and active agent media are produced from the composition.

REFERENCES:
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patent: 4359558 (1982-11-01), Gould et al.
patent: 4451635 (1984-05-01), Gould et al.
patent: 4454309 (1984-06-01), Gould et al.
patent: 4496535 (1985-01-01), Gould et al.
patent: 4563490 (1986-01-01), Stol et al.
patent: 4789720 (1988-12-01), Tettenhart

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