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US 2018/0251659 A1Published application
Cyanoacrylate compositions
AssigneeHenkel IP & Holding GmbH
InventorsRaymond Tully, Rory Barnes, Mark Loane, Robert Lambert, Ceclile Ollagnier
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Abstract
Cyanoacrylate compositions that include a cyanoacrylate component, a rubber toughening component, a component containing at least two (meth)acrylate functional groups and an anhydride component are provided.
Claims23
A cyanoacrylate composition, comprising:
- (a) a cyanoacrylate component,
- (b) a rubber toughening agent comprised of (i) reaction products of the combination of ethylene, methyl acrylate and monomers having carboxylic acid cure sites, (ii) dipolymers of ethylene and methyl acrylate, and combinations of (i) and (ii),
- (c) a component containing at least two (meth)acrylate functional groups, and
- (d) an anhydride component;
- wherein when cured at room temperature between two substrates each of which being constructed from steel, greater than about 75% of its initial tensile strength is retained after exposure to a temperature of about 40° C. at a relative humidity of about 98% and greater than about 40% of its initial tensile strength is retained after exposure to a temperature of about 120° C. for a period of time of about 3 weeks.
2 more elements
Dependencies are inferred from the claim text.