Patent · US Active

Process for the preparation of polyquarternium-I

US9475907B2 · kind B2 · utility

0Cited by

8References

9Claims

0Family size

Assignee

ALFRED E. TIEFENBACHER (GMBH & CO. KG) · DE

Inventors

Stefan Becker · Mannheim, DE
Uwe Eilitz · Wolfen, DE
Gunnar Göthe · Wolfen, DE
Jens Flemming · Hamburg, DE

Key dates

Filing date	Jun 19, 2013
Grant date	Oct 25, 2016
Priority date	—
Expiry date	Jun 19, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G73/0226
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a method for the preparation of polyquaternium-1, wherein an aprotic polar solvent is used as the reaction medium, and a solid polyquaternium-1 having a low degree of polydispersity.

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