Title:
PRODUCTION METHOD FOR THERMOPLASTIC RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/058647
Kind Code:
A1
Abstract:
This method for producing a thermoplastic resin composition comprises a step for melting and kneading a thermoplastic resin and a bundled body of fibrous fillers by feeding the same to a twin-screw extruder having a pair of screws. The melting and kneading step is performed in a kneading zone of the twin-screw extruder. Each of the pair of screws disposed in the kneading zone has: two or more backward-feed screw elements that are each equipped with a single stripe of flight having at least one notch formed therein; and two or more forward-feed screw elements. The backward-feed screw elements and forward-feed screw elements are arranged alternately so as to be adjacent to each other in the axial direction of the screw.
Inventors:
TAKAGI SHOTA (JP)
MATSUYAMA RIEKO (JP)
SUZUKI KAZUHITO (JP)
MATSUYAMA RIEKO (JP)
SUZUKI KAZUHITO (JP)
Application Number:
PCT/JP2022/037104
Publication Date:
April 13, 2023
Filing Date:
October 04, 2022
Export Citation:
Assignee:
POLYPLASTICS CO (JP)
International Classes:
B29B9/14; B29B7/46; B29C48/40; B29C48/55; B29C48/605
Domestic Patent References:
| WO2006123824A1 | 2006-11-23 |
Foreign References:
| CN103978662A | 2014-08-13 | |||
| JP2012213997A | 2012-11-08 | |||
| JP2020040356A | 2020-03-19 | |||
| JP2006035677A | 2006-02-09 | |||
| JPS5017469A | 1975-02-24 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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