Patent · US Expired

Method for grafting lignin, polymerizates produced according to the method and the utilization thereof

US6593460B1 · kind B1 · utility

10Cited by

3References

27Claims

0Family size

Assignee

Stockhausen GmbH & Co. KG · DE

Inventors

Aloys Hüttermann · Göttingen, DE
Carsten Mai · Oebisfelde, DE

Key dates

Filing date	Oct 12, 2000
Grant date	Jul 15, 2003
Priority date	—
Expiry date	Oct 12, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L97/005
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to biologically degradable lignin graft polymers comprised of lignin and ethylenically unsaturated monomers which are formed by an enzymatically catalyzed polymerization method in the presence of organic peroxides. The polymerizates are suited, for example, for utilization as absorbers for water and aqueous liquids, as coagulants and thickeners, as water softeners and as dispersing agents.

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