Title:
COMPOSITE MATERIAL AND METHOD FOR PRODUCING MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2022/030336
Kind Code:
A1
Abstract:
A composite material containing reinforcing fibers A and a matrix resin, the reinforcing fibers A being discontinuous fibers having a fiber length of at least 5mm and containing reinforcing fibers A1 having a bundle width of less than 0.3mm and a reinforcing fiber bundle A2 having a fiber width of 0.3-3.0mm, inclusive, wherein the coefficient of variation CViA2 of VfiA2 is 35% or less in at least a minimum bundle width zone (i=1) and a maximum bundle width zone (i=n) when the reinforcing fiber bundle A2 is divided into a pre-set plurality of bundle width zones (total number of bundle width zones n≥3) and the volume ratio of the reinforcing fiber bundle A2 in each bundle width zone is VfiA2. Also, a method for producing a molded article which uses the composite material.
Inventors:
SUZUKI SHUHEI (JP)
YOKOMIZO HODAKA (JP)
YONEDA TETSUYA (JP)
KATO TAKUMI (JP)
SAIONJI YUKI (JP)
YOKOMIZO HODAKA (JP)
YONEDA TETSUYA (JP)
KATO TAKUMI (JP)
SAIONJI YUKI (JP)
Application Number:
PCT/JP2021/027983
Publication Date:
February 10, 2022
Filing Date:
July 28, 2021
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
B29B15/08
Domestic Patent References:
| WO2016152563A1 | 2016-09-29 | |||
| WO2019107247A1 | 2019-06-06 |
Foreign References:
| JP2019181857A | 2019-10-24 | |||
| JP2017205878A | 2017-11-24 |
Attorney, Agent or Firm:
KOH-EI PATENT FIRM, P.C. (JP)
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