Patent · US Expired

Biodegradable, water-resistant polymer material

US5733994A · kind A · utility

17Cited by

5References

25Claims

0Family size

Assignee

Deutsche Gelatine-Fabriken Stoess AG · DE

Inventors

Peter Koepff · Heidelberg, DE
Klaus Braumer · Eberbach, DE
Wilfried Babel · Heidelberg, DE

Key dates

Filing date	Nov 26, 1996
Grant date	Mar 31, 1998
Priority date	—
Expiry date	Nov 26, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2201/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A novel biodegradable, water-resistant polymer material which can be produced with defined material properties is suggested, in particular in the form of foils, films, strips, masses, molded articles or the like, this material consisting essentially of a product of the cross-linking reaction of polysaccharides and/or polypeptides, the hydroxyl, amino, imino, thiol and/or carboxyl groups of which are derivatized at least partially in a non-radical reaction with agents which include groups cross-linkable in a process step following the derivatization and separate therefrom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.