FIELD: leather industry. SUBSTANCE: porous materials are manufactured on the basis of leather production wastes and off-grade raw materials, which are converted into collagen-containing dispersion in alkali medium further supplemented with a cross-linking agent. Composition obtained is frozen and then thawed and finished. Waste water from liming stage is directed into the process. EFFECT: reduced cost and extended reserve of starting materials. 3 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF POROUS PROTEIN TEXTURATE PRODUCING | 1997 |
|
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| METHOD OF THE POROUS COLLAGEN-CONTAINING MATERIAL PREPARING | 1995 |
|
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|
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| METHOD OF PREPARING POROUS MATERIAL | 1995 |
|
RU2115668C1 |
| PROCESS FOR PREPARING COLLAGEN SPONGE | 1993 |
|
RU2039766C1 |
