Coarse-particle microcapsule preparation

US7575804B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Gabriele Lang-Wittkowski · Mannheim, DE
• Ekkehard Jahns · Weinheim, DE
• Markus Steffen · Maikammer, DE

Key dates

• Filing date: Jan 14, 2006
• Grant date: Aug 18, 2009
• Expiry date: Feb 10, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2998
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a coarse-particled microcapsule preparation comprising microencapsulated latent heat accumulators and one or more polymeric binders, the ratio of surface area to volume of the particles obeying the following relationship:and to processes for its production and its use in heat exchangers and building materials.