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:
Oct. 25, 2016
Filed:
Nov. 16, 2012
Toray Industries, Inc., Tokyo, JP;
Hidetaka Muramatsu, Masaki, JP;
Noriyuki Hirano, Masaki, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
The present invention relates to a carbon fiber-reinforced polypropylene sheet which comprises carbon fibers having a weight-average fiber length of 1.5 mm to 20 mm and a matrix resin composed of a polypropylene and an acid-modified polypropylene, wherein the carbon fibers are dispersed in the form of single fibers and the interfacial shear strength between the carbon fibers and said matrix resin is 5.50 to 10.5 MPa. Provided is a carbon fiber-reinforced polypropylene sheet for obtaining a molded article having excellent mechanical properties and impact resistance, which carbon fiber-reinforced polypropylene sheet comprises discontinuous carbon fibers and a polypropylene, can be molded into a complex shape and has isotropic mechanical properties.