Activator for cyanoacrylate adhesives

US6547917B1 · kind B1 · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Hanns Misiak · Fredenbeck, DE
• Ingolf Scheffler · Wiesloch, DE

Key dates

• Filing date: Feb 12, 2002
• Grant date: Apr 15, 2003
• Expiry date: Feb 12, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2433/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Organic compounds containing the structural element —N═C—S—S—C═N— are suitable in dilute solution as activators for the accelerated hardening of cyanoacrylate adhesives. As compared with the known accelerators, they have the following advantage: good accelerating action, but they nevertheless permit a long waiting time between application of the activator and application of the adhesive. In addition, they avoid spontaneous, merely superficial hardening.