Patent · US Expired

Acidic polylactic polymers

US6111033A · kind A · utility

4Cited by

4References

34Claims

0Family size

Assignee

Kinerton Limited · IE

Inventors

Thomas Ciaran Loughman · Dublin, IE
Ruth M. Russell · Dublin, IE
Franck Touraud · Vienne, FR

Key dates

Filing date	Jan 15, 1999
Grant date	Aug 29, 2000
Priority date	—
Expiry date	Jan 15, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G63/60
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A biodegradable polyester prepared from lactic acid, and, optionally, other hydroxy acid or acids. The polyester contains 4-100 carboxyl groups and has an average molecular weight of 1,000 to 200,000 g/mol. Also disclosed are methods of making such polyesters.

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