Process for the preparation of a collagen product for medical and cosmetic purposes
US4389487A · kind A · utility
41Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1981 |
| Grant date | Jun 21, 1983 |
| Priority date | — |
| Expiry date | Jun 8, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Process for the preparation of collagen products for medical and cosmetic purposes, wherein collagen products prepared according to the method described in U.S. Pat. No. 4,066,083 are subjected to an additional heat treatment or a treatment with gaseous hydrogen halide in order to improve the physicochemical and mechanical properties of the collagen product, in particular its absorption and mechanical strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.