Cyanoacrylate adhesive

Details Cyanoacrylate adhesive Cyanoacrylate adhesive

C - Chemistry, Metallurgy

09

J

C09J 4/04 (2006.01) C09J 4/00 (2006.01)

Patent

CA 2267177

In order to improve the thermal stability of polycyanoacrylates, a combination of 2-cyanopentadienoic acid alkyl ester and alkylene-bis(2-pentadienoate), preferably in amounts of up to a total of 20 wt %, are added to cyanoacrylate adhesives based on monocyano-acrylic acid esters. The alkyl or alkylene group advantageously has between 2 and 4 carbon atoms.

En vue d'améliorer la résistance à la chaleur des polycyano-acrylates, il est prévu, conformément à l'invention, d'ajouter une combinaison d'alkylester d'acide 2-cyano-pentadiénoïque et d'alkylène-bis(2-pentadiénoate), de préférence à raison de 20 % en poids au total, à des adhésifs au cyano-acrylate à base d'esters d'acide monocyano-acrylique. Les groupes alkyle ou alkylène renferment avantageusement de 2 à 4 atomes de carbone.

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