Long shelf life bismaleimide structural adhesive

Stock material or miscellaneous articles – Layer or component removable to expose adhesive – Halogen containing compound

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428255, 428352, 428355, 526262, 528322, 548521, A61F 1302

Patent

active

051659778

ABSTRACT:
An adhesive patch for a composite structure, an adhesive for that patch and a method for forming the adhesive patch for the composite structure are described. The adhesive includes three uncured components of a bismaleimide polymeric mixture. Two of these components are liquid. The liquids include a liquid vinyl-terminated rubber monomer and a liquid bis(alkenylaromatic)aryl or bis(alkenylaromatic)alkyl monomer. The further component is a solid bismaleimide monomer that is intimately mixed and suspended in the liquid bis(alkenylaromatic)aryl or bis(alkenylaromatic)alkyl monomer and liquid vinyl-terminated rubber.

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Stenzenberger, "Toughened bismaleimides: Concepts, achievement directions", 19th International SAMPE Tech. Conf., Oct. 13-15, 1987.
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Chaudhari, "Characterization of bismaleimide system, XU-292", SAMPE Journal, Jul./Aug. 1985, pp. 17-21.

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