Water-soluble polyurethanes and compositions and application the

Details Water-soluble polyurethanes and compositions and application the Water-soluble polyurethanes and compositions and application the

1977-11-08

1979-04-24

Cockeram, H. S.

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Treating textiles or fibers from synthetic resin or natural...

260 292TN, 260859R, 528 71, 528273, 528904, 528905, 81157, 8192, 428425, D06M 1512, C08G 1846, C08J 302, B32B 2740

Patent

active

041509463

ABSTRACT:
Water-soluble polyurethanes are obtained by reacting sulfonated anionic polyesters containing about 0.8 to 2% sulfur with at least one diisocyanate to form film-forming polyurethanes which are directly soluble in water. The polyurethanes of the invention are advantageously applied in aqueous solution form as sizing for textiles and for bonding leathers.

REFERENCES:
patent: T862017 (1969-05-01), Caldwell
patent: 3018272 (1962-01-01), Griffing et al.
patent: 3189578 (1975-06-01), Kuemmerer
patent: 3920598 (1975-11-01), Reiff et al.
patent: 3998871 (1976-12-01), Carlson
patent: 4110284 (1978-08-01), Violland et al.

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