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.
Patent No.:
Date of Patent:
Sep. 19, 1989
Filed:
Feb. 26, 1988
Applicant:
Inventors:
Assignee:
Ube Industries, Ltd., Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428335 ; 428413 ; 428415 ; 428417 ; 428435 ; 4284735 ;
Abstract
Disclosed is an interleaf-containing, fiber-reinforced epoxy resin prepreg, which comprises a fiber-reinforced epoxy resin matrix and an interleaf composed of a polyimide film subjected to a corona discharge treatment and/or a matting treatment. This prepreg is suitable for the production of a composite material which is excellent in mechanical strength characteristics such as interlaminar shear strength and flexural breaking strength and having a high toughness.