Process for the production of a composite system of a highly elastic material and a polyurethane foam layer and product formed thereby

US4820580A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Jurgen Hocker · Bensberg, DE
• Jurgen Faehndrich · Leverkusen, DE
• Hans Hespe · Leverkusen, DE
• Kirkor Sirinyan · Bensberg, DE
• Dieter Wecker · Krefeld, DE

Key dates

• Filing date: Apr 12, 1988
• Grant date: Apr 11, 1989
• Expiry date: Apr 12, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Composite materials are formed by subjecting a highly elastic material to a plasma treatment and then allowing a polyurethane foam forming mixture to foam on the plasma treated surface. These composites are particularly useful as shoe soles and as insulating materials.