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US 9,657,120 B1Granted
Cyanoacrylate compositions
AssigneeHenkel IP & Holding GmbH
InventorsMarisa Phelan, Cormac Duffy, John Killoran, Barry N. Burns, John Guthrie, Bernard Ryan, Ciara Goff
Life of this patent
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Abstract
This invention relates to cyanoacrylate-containing compositions, which when cured provide improved heat resistance.
Claims10
A method of conferring improved thermal resistance to a cured product of a cyanoacrylate adhesive composition, comprising the steps of:
- providing a cyanoacrylate adhesive composition made from an allyl-2-cyanoacrylate and having added thereto in an amount of about 10 to about 20 weight percent based on the cyanoacrylate adhesive composition a bis-cyanoacrylate to form the cyanoacrylate adhesive composition;
- providing at least two substrates;
- dispensing the cyanoacrylate adhesive composition onto at least one of the substrates;
- joining the substrates in a mating relationship with the cyanoacrylate adhesive composition disposed therebetween and allowing the cyanoacrylate adhesive composition to cure thereby forming an assembly with the cured cyanoacrylate adhesive composition adhesively bonding together the two substrates;
- and
- exposing the assembly to elevated temperature conditions of at least 120° C., said cured cyanoacrylate adhesive composition having improved resistance to thermal degradation at that elevated temperature over an allyl-2-cyanoacrylate-containing cyanoacrylate adhesive composition without the added bis-cyanoacrylate.
3 more elements
A method of conferring improved thermal resistance to a cured product of a cyanoacrylate adhesive composition, comprising the steps of:
- dispensing a cyanoacrylate adhesive composition made from an allyl-2-cyanoacrylate and having added thereto in an amount of about 10 to about 20 weight percent based on the cyanoacrylate adhesive composition a bis-cyanoacrylate onto at least one substrate to which another substrate is joined in a mating relationship and allowing the cyanoacrylate adhesive composition to cure thereby forming an assembly with the cured cyanoacrylate adhesive composition adhesively bonding together the two substrates;
- and
- exposing the assembly to elevated temperature conditions of at least 120° C., said cured cyanoacrylate adhesive composition having improved resistance to thermal degradation at that elevated temperature over an allyl-2-cyanoacrylate-containing cyanoacrylate adhesive composition without the added bis-cyanoacrylate.
Dependencies are inferred from the claim text.