Title:
GLASS REINFORCED RESIN MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2022/254918
Kind Code:
A1
Abstract:
Provided is a glass reinforced resin molded article capable of reducing anisotropy of shrinkage and TD-direction shrinkage. This glass reinforced molded article includes a thermoplastic resin and 10.0-90.0 mass% of a glass reinforcing material relative to the total weight. The glass reinforcing material includes flat-cross-section glass fibers having a flat cross-sectional shape in which the ratio of the major diameter to the minor diameter is 3.0-10.0. The flat-cross-section glass fiber content C relative to the total weight is 10.0-80.0 mass%. The major diameter D of the flat-cross-section glass fibers is 25.0-55.0 μm. The proportion P of glass reinforcing material having a length of 50-100 μm to the total number of glass reinforcing materials having a length of 50 μm or greater included in the glass reinforced resin molded article is 4-50%. C, D, and P above satisfy formula (1). Formula (1): 0.46≤P/(C×D)1/2≤0.99
Inventors:
NUKUI YOSUKE (JP)
Application Number:
PCT/JP2022/014938
Publication Date:
December 08, 2022
Filing Date:
March 28, 2022
Export Citation:
Assignee:
NITTO BOSEKI CO LTD (JP)
International Classes:
B29C70/42; B29C70/10; C08J5/04; C08K3/40; C08K7/14; C08L101/00; B29K101/12; B29K105/12
Domestic Patent References:
| WO2012043180A1 | 2012-04-05 | |||
| WO2009031521A1 | 2009-03-12 |
Foreign References:
| JP2014040555A | 2014-03-06 | |||
| JP2019052323A | 2019-04-04 | |||
| JP2021003899A | 2021-01-14 |
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
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