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:
Aug. 22, 1989
Filed:
Sep. 18, 1987
Yuji Seiya, Otsu, JP;
Hiroyuki Odawara, Moriyama, JP;
Toray Industries, Inc., Shiga, JP;
Abstract
The present invention relates to advanced composite materials composed of reinforced fibers, and a polyvinyl formal and an epoxy resin composition hardened by dicyandiamide and/or a urea derivative. A specific polyvinyl formal resin and epoxy resin composition that is resistant to phase separation is disclosed. Also disclosed is a polyvinyl formal of 5 microns or less in average grain size finely dispersed in an epoxy resin composition which has enhanced tensile strength and elongation in the direction perpendicular to the fiber direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile