Combination foam

US9714332B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Frank Prissok · Bohmte, DE
• Michael Harms · Bohmte, DE
• Martin Vallo · Bramsche, DE

Key dates

• Filing date: Aug 8, 2013
• Grant date: Jul 25, 2017
• Expiry date: Sep 30, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2475/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The combination foam comprises a matrix composed of polyurethane foam and foamed particles of thermoplastic polyurethane comprised therein, where matrix and particles are each made up of polyol components and polyisocyanate components, wherein at least 50% by weight of the basic building blocks forming the polyol component of the matrix and particles are identical and at least 50% by weight of the basic building blocks forming the polyisocyanate component of the matrix and particles are identical.