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Patent Searching and Data


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)
Application Number:
PCT/JP2020/021678
Publication Date:
December 30, 2020
Filing Date:
June 02, 2020
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
International Classes:
B29B9/06
Domestic Patent References:
WO2017111055A12017-06-29
Foreign References:
JPH0747545A1995-02-21
JPH0796519A1995-04-11
JP2000246733A2000-09-12
JP2003285320A2003-10-07
JPS54116564U1979-08-15
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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