Method of preparing leather from unhaired hides

Details Method of preparing leather from unhaired hides Method of preparing leather from unhaired hides

1995-06-05

1996-02-20

Willis, Jr., Prince

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 9421, 8 9418, 252 857, C14C 322

Patent

active

054925398

ABSTRACT:
Tanning agents containing an .omega.,.omega.-dialdehyde as as the active tanning substance, optionally in a deactivated form, in combination with a polymer containing hydroxyl groups, and methods for using such tanning agents in the preparation of leather, particularly in pickling, tanning, and retanning.

REFERENCES:
patent: 2205883 (1940-06-01), Graves
patent: 2941859 (1960-06-01), Fein et al.
patent: 3291558 (1966-12-01), Bader et al.
patent: 3945792 (1976-03-01), Wurmli et al.
patent: 4439201 (1984-03-01), Lauton et al.
patent: 5011499 (1991-04-01), Rathfelder et al.
patent: 5286263 (1994-02-01), Schoffer et al.

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