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US 7,745,549 B2Granted
Distortional matrix of epoxy resin and diamine
AssigneeThe Boeing Company
InventorsStephen Christensen, James S. Senger
Life of this patent
Estimating the term…
Abstract
The invention relates to composites having increased distortional deformation, and/or decreased dilatation load, as expressed within the von Mises strain relationship, which provide increased von Mises strain results. These composites may provide enhanced composite mechanical performances.
Claims18
A method of forming a composition having a von Mises strain of at least 0.300 by combining a mixture comprising at least one diamine and at least one epoxy resin which collectively have the von Mises strain of at least 0.300, the mixture comprising one of the following:
- (1) a Bisphenol F based tri-functional novolac epoxy resin and a 4,4′ bis (3-aminophenoxy) diphenylsulfone;
- (2) a Bisphenol F based tri-functional novolac epoxy resin and a 3,3 ′diaminodiphenylsulfone;
- (3) a Bisphenol F based tri-functional novolac epoxy resin and a 1,3 bis(3-aminophenoxy) benzene;
- (4) a diglycidyl α, α′-bis(4-hydroxyphenyl)-p-diisopropylbenzene and a 4,4′ bis (3-aminophenoxy) diphenylsulfone;
- (5) a 1,3 bis(4-aminophenoxy)-2,2 dimethylpropane and a diglycidyl ether of Bisphenol-A;
- and (6) a 1,3 bis(3-aminophenoxy)-2,2 dimethylpropane and a diglycidyl ether of Bisphenol-A.
3 more elements
Dependencies are inferred from the claim text.