The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 19, 1999

Filed:

Apr. 28, 1998
Applicant:
Inventor:

Richard A Lewis, El Segundo, CA (US);

Assignee:

TRW Inc., Redondo Beach, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B32B / ;
U.S. Cl.
CPC ...
4282981 ; 156221 ; 156222 ; 1563073 ; 156330 ; 264321 ; 26433111 ; 264D / ; 4282991 ; 4283014 ; 4283191 ;
Abstract

A composite laminate structure, and a method for its fabrication. The structure includes a syntactic core layer (10) including an epoxy system catalyzed by a Lewis acid, and two face skin layers (12), each of which has multiple graphite fibers laid up in a polycyanate matrix resin catalyzed by cobalt. After thermal curing, the laminate structure has the unusual, but highly desirable property that it is compliant enough to be conformed at room temperature to a different shape, without damage to the structure. The structure may be later conformed to other shapes or conformed to its original shape, again without damage. Structures of unusual shapes can, therefore, be easily fabricated from sheets of the laminate material formed in one (1) convenient initial shape, such as a flat panel.


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