Patent · US Expired

Biologically degradable polyamide for depot preparations having controlled release of the active compound

US4835248A · kind A · utility

14Cited by

8References

6Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Hubert Bader · Mainz, DE
Diether Ruppel · Frankfurt am Main, DE
Axel Walch · Baldham, DE
Michael Magerstadt · Hofheim, DE

Key dates

Filing date	May 13, 1987
Grant date	May 30, 1989
Priority date	—
Expiry date	May 13, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G69/10
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Polyamides in which amino acids are incorporated in the polymer backbone via two amino or carboxyl groups and which carry in the .alpha.-position to the amide structure a functional group which is responsible for degradation and active compound release are highly suitable for the preparation of biologically degradable active compound depot preparations having controlled release of the active compound.

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