Gel compounds, their production and use

US5362834A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Dietmar Schapel · Cologne, DE
• Heinz-Dieter Ebert · Burscheid, DE
• Hartwig Grammes · Leverkusen, DE

Key dates

• Filing date: Apr 28, 1992
• Grant date: Nov 8, 1994
• Expiry date: Apr 28, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2220/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Improved gel compounds based on reaction products of polyols and polyisocyanates are characterized in that the polyol component consists of a mixture of a) one or more polyols having hydroxyl values below 112 and b) one or more polyols having hydroxyl values of 112 to 600 and in that the isocyanate index of the reaction mixture is in the range from 15 to 70. They may be used as pressure-distributing elements.