Login| Sign Up| Help| Contact|

Patent Searching and Data


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)
Application Number:
PCT/JP2012/083355
Publication Date:
July 18, 2013
Filing Date:
December 21, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
IDEMITSU KOSAN CO (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:
WO2008090673A12008-07-31
Foreign References:
JP2005349726A2005-12-22
JP2005053979A2005-03-03
JP2005035134A2005-02-10
JPH0721007B21995-03-08
JPH05239334A1993-09-17
JPH09254151A1997-09-30
JP2000351115A2000-12-19
JP2011161860A2011-08-25
JPS6279222A1987-04-11
Other References:
See also references of EP 2803457A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Download PDF:
Claims: