Patent · US Active

Process for preparing microcapsules having a polyurea shell and a lipophilic core material

US10307723B2 · kind B2 · utility

2Cited by

5References

19Claims

0Family size

Assignee

BASF SE

Inventors

Ewelina Burakowska-Meise · Mannheim, DE
Wolfgang Denuell · Mannheim, DE
Thomas Soltys · Ludwigshafen, DE
Emmanuel AUSSANT · Paris, FR
Addi Fadel · Shelton, US
Ian Harrison · Poissy, FR

Key dates

Filing date	Oct 27, 2015
Grant date	Jun 4, 2019
Priority date	—
Expiry date	Oct 27, 2035

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H21/06
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The application describes a process for the preparation of microcapsules, wherein the microcapsules have a volume average diameter d of 15 to 90 μηη and a percentage of the shell weight of 3 to 40%, with reference to the total weight of capsules, wherein the shell of the microcapsules comprises at least one polyurea and the core comprises at least one lipophilic component, comprising the step of adding hydroxyalkylcellulose to a dispersion of polyurea microcapsules, microcapsules and their uses.

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