Method for making collagen sponge for medical and cosmetic uses

US4320201A · kind A · utility

Assignee

• Firma Carl Freudenberg · DE

Inventors

• Alexander Berg · Mannheim, DE
• Zdenek Eckmayer · Weinheim, DE

Key dates

• Filing date: Sep 2, 1980
• Grant date: Mar 16, 1982
• Expiry date: Sep 2, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2389/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A process for producing collagen sponge which is insoluble but highly swellable in water, the sponge having a velour-like surface and being particularly suited for medical and cosmetic applications.