Method of producing high-molecular products from collagen-contai

Details Method of producing high-molecular products from collagen-contai Method of producing high-molecular products from collagen-contai

1996-09-04

1998-02-24

Diamond, Alan

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Treatment of untanned skins or hides

8 9415, 8 9411, 8 942, 8 9421, 524 10, 524 11, C08H 106

Patent

active

057207780

ABSTRACT:
A method of producing a collagen-containing material has the steps of comminuting untanned collagen-containing raw material, preparing from the raw material a collagen solution, preparing a leather paste from tanned collagen-containing waste, mixing the collagen solution and the leather paste to produce a mixture, adding a cross-linking agent to the mixture, freezing and unfreezing the mixture, and performing a preliminary treatment of the untanned collagen-containing raw material with a solution of alkali and a surfactant with pH less than 9.5.

REFERENCES:
patent: 4412947 (1983-11-01), Cioca
patent: 4533358 (1985-08-01), Yoden et al.
patent: 4834762 (1989-05-01), Nishibori
patent: 5322648 (1994-06-01), Dapper

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