Pressure-sensitive adhesives of cyanoacrylate polymers
Abstract
Abstract ACRYLIC INTERPOLYMERS WHICH ARE USEFUL AS PRESSURESENSITIVE ADHESIVES HAVING IMPROVED PROPERTIES, ESPECIALLY AFTER EXPOSURE TO ELEVATED TEMPERATURES, ARE OBTAINED BY INCLUDING IN THE INTERPOLYMER A CYANO-SUBSTITUTED ALKYL ESTER OF AN UNSATURATED CARBOXYLIC ACID. 2-CYANOETHYL ACRYLATE AND 2-CYANOETHYL METHACRYLATE ARE THE PREFERRED CYANO-SUBSTITUTED ESTERS. THE INTERPOLYMER ALSO INCLUDES ALKYL ACRYLATES AND/OR METHACRYLATES, AND PREFERABLY CONTAINS CARBOXYLIC ACID UNITS. THESE ADHESIVES HAVE IMPROVED TACK, ADHESION AND COHESIVE STRENGTH AS COMPARED TO CORRESPONDING ADHESIVES WITHOUT THE CYANO-SUBSTITUTED ESTER COMPONENT, THE IMPROVEMENT BEING PARTICULARLY PRONOUNCED AFTER EXPOSURE OF THE ADHESIVE TO ELEVATED TEMPERATURES.
Inventors
- 👤 Rudolf Maska
Bibliographic Details
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