Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1986-05-01
1989-03-07
Lieberman, Paul
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 942, 8 9421, 427389, C14C 902
Patent
active
048102512
ABSTRACT:
Aqueous fatliquoring solutions, dispersions or emulsions are made with (a) polyethers having at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or (b) polyester containing at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or (c) polycarbonates containing at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or mixtures thereof. These fatliquoring agents are used to treat tanned leathers until from 0.1 to 20 wt % has been taken up. The thus-treated leather is particularly useful in the production of leather-polyurethane compositions such as shoes without the use of an adhesive.
REFERENCES:
patent: 2828220 (1958-03-01), McWherter et al.
patent: 3720606 (1973-03-01), Herney et al.
patent: 4190687 (1980-02-01), Sugiura et al.
patent: 4345006 (1982-08-01), Loechel et al.
Focks Hans J.
Muller Hans-Werner
Traubel Harro
Woynar Helmut
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Henderson Richard E. L.
Lieberman Paul
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