Single-component polyurethane adhesive

US7259207B2 · kind B2 · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Bernhard Gruenewaelder · Hilden, DE
• Bernhard Schoettmer · Monheim, DE
• Werner Haller · Erkrath, DE
• Wolfgang Klauck · Meerbusch, DE
• Birgit Ness · Langenfeld, DE

Key dates

• Filing date: May 15, 2001
• Grant date: Aug 21, 2007
• Expiry date: May 15, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A pasty single component polyurethane adhesive is provided. The NCO terminated polyurethane prepolymer is substantially linear, contains from 2.0% to 8.0% based on the weight of the prepolymer, of highly disperse silica and up to 10% by weight, based on the weight of the prepolymer, of additives. The one component adhesive has an Expressed Volume of at least 2,000 g/min measured according to DIN EN 29048 and a Creep Resistance measure according to DIN EN 27390 below 6.0 after 5 minutes.