Patent · US Expired

Aliphatic polyesters containing sulphur, and their use as stabilizers for polymers

US4699972A · kind A · utility

4Cited by

8References

6Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Heinz Hammer · Cologne, DE
Herbert Eichenauer · Dormagen, DE
Ernst Roos
Eberhard Jurgens · Cologne, DE

Key dates

Filing date	Aug 22, 1986
Grant date	Oct 13, 1987
Priority date	—
Expiry date	Aug 22, 2006

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L101/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Aliphatic polyesters containing sulphur, which contain the sulphur as structural units in the form of sulphide or disulphide groups in both the acid component and the diol component, a process for the preparation of these polyesters, and also polymers containing these polyesters.

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