Patent · US Active

Carbon-fiber-reinforced resin composite material

US10406762B2 · kind B2 · utility

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11Claims

0Family size

Assignee

TEIJIN LIMITED · JP

Inventors

Shuhei Onoue · Osaka, JP
Makoto Ootsubo · Matsuyama, JP
Yasunori Nagakura · Osaka, JP
Naoaki Sonoda · Matsuyama, JP

Key dates

Filing date	Sep 18, 2017
Grant date	Sep 10, 2019
Priority date	—
Expiry date	Oct 5, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2101/12
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A carbon-fiber-reinforced resin composite material includes: carbon fibers including carbon fiber bundles and a thermoplastic resin, in which (1) a coefficient of variation (CV1) of a total areal weight of the carbon-fiber-reinforced resin composite material is 10% or lower, (2) a coefficient of variation (CV2) of a carbon fiber volume fraction (Vf) in the carbon-fiber-reinforced resin composite material which is defined by Expression (a) is 15% or lower, and (3) a weight average fiber length of the carbon fibers is 1 to 100 mm. Carbon Fiber Volume Fraction (Vf)=100×Volume of Carbon Fibers/(Volume of Carbon Fibers+Volume of Thermoplastic Resin) Expression (a).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.