logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9751990 B1

PDFFull Text
Date of Patent:
Sep. 05, 2017

Filed:

Dec. 21, 2012

Transparent thermoplastic resin pellet manufacturing method

Applicant:

Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;

Inventors:

Takayoshi Tanaka, Ichihara, JP;

Munehiro Chosa, Ichihara, JP;

Yasunobu Yamazaki, Ichihara, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Lisa Herring

Int. Cl.
CPC ...
B29B 7/42 (2006.01); B29B 9/06 (2006.01); C08J 3/00 (2006.01); B29B 9/12 (2006.01); B29B 9/16 (2006.01); B29B 7/48 (2006.01); B29C 47/60 (2006.01); B29C 47/92 (2006.01); B01F 7/00 (2006.01); B29B 7/00 (2006.01); B29B 7/80 (2006.01); B29K 69/00 (2006.01);
U.S. Cl.
CPC ...
C08J 3/005 (2013.01); B01F 7/00416 (2013.01); B29B 7/002 (2013.01); B29B 7/48 (2013.01); B29B 7/489 (2013.01); B29B 7/80 (2013.01); B29B 9/06 (2013.01); B29B 9/12 (2013.01); B29B 9/16 (2013.01); B29C 47/6087 (2013.01); B29C 47/92 (2013.01); B01F 2215/0049 (2013.01); B29K 2069/00 (2013.01); B29K 2995/0026 (2013.01); C08J 2369/00 (2013.01);
Abstract

A method for producing a transparent thermoplastic resin pellet comprising a step of kneading a transparent thermoplastic resin with a kneader under a condition under which a damage history calculated according to the following formula is 500 to 2,500:Damage history={Residence time ()}×{Shear rate (γ)}Residence time ()=()/Shear rate (γ)=(π×)/in the formulae, W represents a screw groove width (pitch) [cm]; H represents a screw groove depth [cm]; L represents a screw length [cm]; Q represents a resin supply amount [g/s]; D represents a screw diameter [cm]; and N represents a screw rotation number [rps].

Find Patent Forward Citations

Tanaka, Takayoshi. (2017). Transparent thermoplastic resin pellet manufacturing method (U.S. Patent No. 9751990). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9751990

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…