Rubber-based structural white-shell adhesives

US6004425A · kind A · utility

Assignee

• Henkel-Teroson GmbH · DE

Inventors

• Peter Born · Sandhausen, DE
• Frank Dittrich · Sinsheim, DE

Key dates

• Filing date: Jul 25, 1997
• Grant date: Dec 21, 1999
• Expiry date: Jul 25, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2666/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

One-component hot-curing structural adhesives based on liquid rubbers, which may optionally contain functional groups, solid rubbers, thermoplastic polymer powders and sulfur and also vulcanization accelerators are suitable for bonding metal parts. Tensile shear strengths of more than 15 MPa and high breaking elongations of more than 15% can be obtained. These adhesives are substantially free from low molecular weight epoxy resins and are particularly suitable for use in white-shell assembly in the car industry.