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US 2021/0230452 A1Published application
Two-part, cyanoacrylate/free radically curable adhesive systems
AssigneeHenkel IP & Holding GmbH
InventorsShabbir T. Attarwala, Ikpreet Grover, Jesse Davis, Chetan Hire
Life of this patent
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Abstract
Two-part cyanoacrylate/free radically curable adhesive systems demonstrating improved toughness are provided.
Claims16
A two-part curable composition comprising:
- (a) a first part comprising a cyanoacrylate component and a peroxide catalyst;
- and
- (b) a second part comprising a free radical curable component and a transition metal, wherein at least one of the first part or the second part further comprises a (meth)acrylate-functionalized urethane resin having a backbone, at least a portion of which includes a urethane linkage formed from isophorane diisocyanate, and wherein when mixed together the peroxide catalyst initiates cure of the free radical curable component and the transition metal initiates cure of the cyanoacrylate component.
Dependencies are inferred from the claim text.