C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 201/10 (2006.01) C09J 121/00 (2006.01) C09J 201/02 (2006.01)
Patent
CA 2689595
Room temperature curing structural adhesive compositions including polyurethane oligomers having multi-methacrylate functionality, cycloalkylmethacrylate, at least one maleimide-functionalized compound and a cure system are disclosed. These compositions exhibit enhanced high temperature properties, including hot strength, heat/humidity strength, and heat aging strength, without compromising initial tensile strength and fixture speeds and still possessing a room temperature cure.
L'invention concerne des compositions adhésives structurelles durcissant à température ambiante, comprenant des oligomères de polyuréthanne ayant une fonctionnalité multiméthacrylate, du cycloalkylméthacrylate, au moins un composé fonctionnalisé par un groupe maléimide et un système de durcissement. Ces compositions montrent des propriétés améliorées à température élevée, comprenant la résistance à chaud, la résistance à la chaleur/à l'humidité, la résistance au vieillissement par la chaleur, sans compromettre la résistance initiale à la traction et les vitesses de fixation, tout en conservant un durcissement à température ambiante.
Czabaj Brian M.
Levandoski Susan Lamtroung
Verosky Christopher J.
Henkel Corporation
Kirby Eades Gale Baker
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