Title:
METHOD FOR PRODUCING LONG GLASS FIBER-REINFORCED PROPYLENE RESIN COMPOSITION PELLETS AND METHOD FOR PRODUCING INJECTION MOLDED BODY
Document Type and Number:
WIPO Patent Application WO/2024/018948
Kind Code:
A1
Abstract:
One aspect of the present invention relates to a method for producing composition pellets that includes a step that fills a molten mixture obtained by melt mixing a propylene resin (A), a modified propylene resin (B), an optionally modified polypropylene wax (C) that satisfies specific requirements, and an organic peroxide (D) by a twin-screw extruder into an impregnation die, then passes a long glass fiber (E) bundle through the impregnation die, impregnates the long glass fiber (E) bundle with the molten mixture, and obtains a strand-shaped molded body and a step that cuts the strand-shaped molded body to obtain long glass fiber-reinforced propylene resin composition pellets.
Inventors:
ODAWARA AKIKO (JP)
MATSUDA YUICHI (JP)
MATSUDA TAKESHI (JP)
MATSUDA YUICHI (JP)
MATSUDA TAKESHI (JP)
Application Number:
PCT/JP2023/025548
Publication Date:
January 25, 2024
Filing Date:
July 11, 2023
Export Citation:
Assignee:
PRIME POLYMER CO LTD (JP)
International Classes:
C08L23/10; C08K5/14; C08K7/14; C08L23/00; C08L23/26
Domestic Patent References:
| WO2020091051A1 | 2020-05-07 |
Foreign References:
| CN101338051A | 2009-01-07 | |||
| JP2021161315A | 2021-10-11 | |||
| CN104387663A | 2015-03-04 | |||
| CN103044764A | 2013-04-17 | |||
| CN111533993A | 2020-08-14 | |||
| JP2005089706A | 2005-04-07 | |||
| JPH09235419A | 1997-09-09 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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