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US 11,015,088 B2Granted
Cyanoacrylate compositions
AssigneeHenkel IP & Holding GmbH
InventorsRaymond Tully, Rory Barnes, Mark Loane, Robert Lambert, Ceclile Ollagnier
Life of this patent
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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 in an amount of from 80% to 90% by weight;
- (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), in an amount of 5% by weight to 15% by weight;
- (c) a component containing at least two (meth)acrylate functional groups represented by the formula:
- wherein A is a C4 to C20 aliphatic chain;
- wherein said chain is optionally substituted with one or more acrylate or methacrylate functional groups, and/or one or more C1 to C10 alkyl groups;
- and
- wherein R1 and R2 are the same or different and are each optionally selected from the group consisting of H and C1 to C6 alkyl, in an amount of 0.5% to 10% by weight;
- and
- (d) phthalic anhydride or a hydrogenated version thereof, in an amount of 0.1% to 1% by weight, each based on the total weight of the composition.
6 more elements
Dependencies are inferred from the claim text.