Continuous production of microcapsule dispersions

US4668580A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Manfred Dahm · Leverkusen, DE
• Gert Jabs
• Georg Wawra · Leverkusen, DE

Key dates

• Filing date: Jun 3, 1985
• Grant date: May 26, 1987
• Expiry date: Jun 3, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2985
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for the production of microcapsule dispersions according to the polyaddition process, wherein an inert organic liquid is continuously mixed under strong turbulence with a polyisocyanate, insoluble therein, this mixture is emulsified in an aqueous phase as dispersed phase and the emulsion formed is continuously reacted with a polyamine.