Title:
TRANSPARENT THERMOPLASTIC RESIN PELLET MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2013/105422
Kind Code:
A1
Abstract:
A transparent thermoplastic resin pellet manufacturing method comprising a process of kneading a transparent thermoplastic resin using a kneader under conditions such that the damage history calculated using the following formulas is 500 - 2500.
Damage history = retention time (tr) × shear rate (γ)
Retention time (tr) = (W×H×L)/Q
Shear rate (γ) = (π×D×N)/H
[In the formulas, W represents the screw channel width (pitch) [cm], H the screw channel depth [cm], L the screw length [cm], Q the resin supply rate [g/s], D the screw diameter [cm], and N the screw rotation speed [rps].]
Inventors:
TANAKA TAKAYOSHI (JP)
CHOSA MUNEHIRO (JP)
YAMAZAKI YASUNOBU (JP)
CHOSA MUNEHIRO (JP)
YAMAZAKI YASUNOBU (JP)
Application Number:
PCT/JP2012/083355
Publication Date:
July 18, 2013
Filing Date:
December 21, 2012
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
TANAKA TAKAYOSHI (JP)
CHOSA MUNEHIRO (JP)
YAMAZAKI YASUNOBU (JP)
TANAKA TAKAYOSHI (JP)
CHOSA MUNEHIRO (JP)
YAMAZAKI YASUNOBU (JP)
International Classes:
B29B7/38; B29B9/06; B29C48/40; B29C48/625; B29C48/92; B29K69/00
Domestic Patent References:
WO2008090673A1 | 2008-07-31 |
Foreign References:
JP2005349726A | 2005-12-22 | |||
JP2005053979A | 2005-03-03 | |||
JP2005035134A | 2005-02-10 | |||
JPH0721007B2 | 1995-03-08 | |||
JPH05239334A | 1993-09-17 | |||
JPH09254151A | 1997-09-30 | |||
JP2000351115A | 2000-12-19 | |||
JP2011161860A | 2011-08-25 | |||
JPS6279222A | 1987-04-11 |
Other References:
See also references of EP 2803457A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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Claims: