Title:
PELLET PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/261888
Kind Code:
A1
Abstract:
This pellet production method includes: a step of extruding, from a die discharge port, a strand comprising a composition containing a thermoplastic resin; a step of cooling, while pulling the strand; and a step of cutting the strand that has been cooled to obtain pellets. In the step of cooling the strand, the strand is pulled at 20 to 140 cm/second. The step of cooling the strand includes a step of pulling the strand into water inside a water tank to water-cool the strand. A length L of the strand immersed in the water inside the water tank satisfies a specific formula (specifically, formula 1).
Inventors:
MAEDA KENSAKU (JP)
KAMOGAKI KENTARO (JP)
AYUZAWA YOSHITAKA (JP)
KAMOGAKI KENTARO (JP)
AYUZAWA YOSHITAKA (JP)
Application Number:
PCT/JP2020/021678
Publication Date:
December 30, 2020
Filing Date:
June 02, 2020
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B29B9/06
Domestic Patent References:
WO2017111055A1 | 2017-06-29 |
Foreign References:
JPH0747545A | 1995-02-21 | |||
JPH0796519A | 1995-04-11 | |||
JP2000246733A | 2000-09-12 | |||
JP2003285320A | 2003-10-07 | |||
JPS54116564U | 1979-08-15 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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