Process for preparation of dried collagen sponge

Details Process for preparation of dried collagen sponge Process for preparation of dried collagen sponge

1991-01-28

1992-05-26

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With step of cooling to a temperature of zero degrees c. or...

8 9411, 264101, 427244, B29B 1304

Patent

active

051165520

ABSTRACT:
A process for preparing a crack-free, dried collagen sponge having a shrinkage factor of up to 14%, including the steps of impregnating crosslinked collagen sponge with an aqueous solution of a hydrophilic organic solvent, freezing the sponge at a temperature of -80.degree. C. or lower, and vacuum-drying the sponge.

REFERENCES:
patent: 2610625 (1952-09-01), Sifferd et al.
patent: 3157524 (1964-11-01), Artandi
patent: 4412947 (1983-11-01), Cioca
patent: 4948540 (1990-08-01), Nigam

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