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US 9,783,714 B2Granted
Cyanoacrylate compositions
AssigneeHenkel IP & Holding GmbH
InventorsCiara Goff, Marisa Phelan, John Guthrie, Cormac Duffy, Sabine Horn, Christina Despotopoulou
Life of this patent
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Abstract
Allyl-cyanoacrylate-containing compositions with an anhydride aromatic component, which when cured confers improved moisture resistance, are provided.
Claims16
A cyanoacrylate adhesive composition, comprising:
- (a) a cyanoacrylate component comprising allyl-2-cyanoacrylate and another cyanoacrylate monomer, and
- (b) in an amount up to about 1% by weight based on the total composition, an aromatic anhydride component selected from the group consisting of phthalic anhydride, 4,4′-(4,4′-isopropylidone diphenoxy)bis(phthalic anhydride), and combinations thereof,
- wherein said allyl-2-cyanoacrylate is present in an amount of at least 40% by weight, based on the cyanoacrylate component.
A cyanoacrylate adhesive composition, comprising
- (a) a cyanoacrylate component comprising allyl-2-cyanoacrylate and another cyanoacrylate monomer,
- (b) an aromatic anhydride component selected from the group consisting of phthalic anhydride, 4,4′-(4,4′-isopropylidone diphenoxy)bis(phthalic anhydride), and combinations thereof, and
- (c) a hydrogenated aromatic anhydride component, wherein said allyl-2-cyanoacrylate is present in an amount of at least 50% by weight, based on the cyanoacrylate component.
A cyanoacrylate adhesive composition, comprising:
- (a) a cyanoacrylate component comprising in an amount of at least 40% by weight, allyl-2-cyanoacrylate, and in an amount of at least 60% by weight, ethyl-2-cyanoacrylate, each based on the total cyanoacrylate component, and
- (b) in an amount of about 0.5% by weight, phthalic anhydride, based on the total composition.
Dependencies are inferred from the claim text.