Back to results
US 12,351,746 B2Granted
Two-part, cyanoacrylate/free radically curable adhesive systems
AssigneeHenkel AG & Co. KGaA
InventorsJesse L. Davis, Chetan Hire, Shabbir T. Attarwala
Life of this patent
Estimating the term…
Abstract
Two-part cyanoacrylate/free radically curable adhesive systems demonstrating improved toughness are provided.
Claims30
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 compound having a Tg of less than about 0° C., 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, wherein the (meth)acrylate-functionalized compound is a (meth)acrylate-functionalized urethane resin made with an isophorane diisocyanate.
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 compound having a Tg of less than about 0° C., 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, wherein the (meth)acrylate-functionalized compound is a polyester urethane acrylate.
Dependencies are inferred from the claim text.