Patent · US Expired

Microcapsule dispersion

US6890653B2 · kind B2 · utility

5Cited by

3References

9Claims

0Family size

Assignee

BASF SE

Inventors

Dirk Wulff · Schifferstadt, DE
Ekkehard Jahns · Weinheim, DE
Volker Schehlmann · Schifferstadt, DE

Key dates

Filing date	Aug 6, 2002
Grant date	May 10, 2005
Priority date	—
Expiry date	Aug 6, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2998
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to microcapsule dispersions comprising microcapsules having a capsule core comprising water-soluble organic substances, and a capsule coating which essentially consists of polyurethane and/or polyurea, in a hydrophobic solvent which consists of 50 to 100% by weight of glycerol ester oils and 0 to 50% by weight of solvents miscible with glycerol ester oils, and to a process for their preparation.

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