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US 12,203,013 B2Granted
Two-part, cyanoacrylate/cationically curable adhesive systems
AssigneeHenkel AG & Co. KGaA
InventorsAine Mooney, Susan Reilly, Deborah Moore
Life of this patent
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Abstract
Two-part cyanoacrylate/cationically curable adhesive systems, are provided.
Claims21
A two-part curable composition comprising:
- (a) a first part comprising a cyanoacrylate component, a silica having hydrophobic groups that comprise organosilane groups and hydrophilic groups on a surface thereof that comprise silanol groups, and a cationic catalyst;
- and
- (b) a second part comprising a cationic curable component, wherein when mixed together the cationic catalyst initiates cure of the cationic curable component.
A composition comprising a cyanoacrylate component, a silica having hydrophobic groups that comprise organosilane groups and hydrophilic groups on a surface thereof that comprise silanol groups, and a cationic catalyst.
A two-part curable composition comprising:
- (a) a first part comprising a cyanoacrylate component, a silica having hydrophobic groups and hydrophilic groups on a surface thereof, and a cationic catalyst;
- and
- (b) a second part comprising a cationic curable component,
- wherein when mixed together the cationic catalyst initiates cure of the cationic curable component;
- wherein the silica has a BET surface area of 170-210 and a carbon content of 0.9-1.8% and is after-treated with hexadecyl silane;
- and
- wherein the cationic catalyst is selected from lithium tetrafluoroborate, calcium di-tetrafluoroborate, magnesium di-tetrafluoroborate, lithium hexafluorophosphate, calcium di-hexafluorophosphate, magnesium di-hexafluorophosphate, lithium hexafluoroantimonate and lithium hexafluoroarsenate.
4 more elements
Dependencies are inferred from the claim text.