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US 2003/0125423 A1Published application
High temperature epoxy adhesive films
Assignee3M Innovative Properties Company
InventorsClayton A. George, William J. Schultz, Wendy L. Thompson
Life of this patent
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Abstract
The invention provides polyepoxide-based adhesives containing cycloaliphatic-containing polyepoxide resin, aromatic polyepoxide resin, and 9,9-bis(3-methyl-4-aminophenyl)fluorene. The adhesives provide improved peel and shear strength.
Claims24
A curable adhesive composition comprising a mixture of:
- a) a mixture of polyepoxide resins comprising at least about 20 to about 80 weight percent cycloaliphatic-containing polyepoxide resin and from about 80 to 20 weight percent aromatic polyepoxide resin, wherein the polyepoxide mixture has a cycloaliphatic character of greater than 10 weight percent;
- and
- b) an effective amount of 9,9-bis(3-methyl-4-aminophenyl)fluorene.
Dependencies are inferred from the claim text.