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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 10427325 B1

PDFFull Text
Date of Patent:
Oct. 01, 2019

Filed:

Aug. 15, 2014

Twin screw extruder for use in manufacturing fiber-reinforced resin composition and process for manufacturing fiber-reinforced resin composition

Applicant:

The Japan Steel Works, Ltd., Shinagawa-ku, Tokyo, JP;

Inventors:

Daigo Saga, Hiroshima, JP;

Jun Kakizaki, Hiroshima, JP;

Toshifumi Ohashi, Hiroshima, JP;

Assignee:

THE JAPAN STEEL WORKS, LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Tony G Soohoo

Assistant Examiner:

Elizabeth Insler

Int. Cl.
CPC ...
B29B 7/48 (2006.01); B29C 47/60 (2006.01); B29C 47/40 (2006.01); B29B 7/90 (2006.01); B29C 47/10 (2006.01); B29C 48/54 (2019.01); B29C 48/57 (2019.01); B29C 48/40 (2019.01); B29C 48/285 (2019.01); B29C 48/92 (2019.01); B29C 48/00 (2019.01); B29C 48/625 (2019.01); B29B 7/84 (2006.01); B29B 9/06 (2006.01); B29B 9/14 (2006.01); B29K 77/00 (2006.01); B29K 307/04 (2006.01); B29K 309/08 (2006.01); B29K 105/12 (2006.01); B29C 48/04 (2019.01); B29C 48/76 (2019.01);
U.S. Cl.
CPC ...
B29B 7/482 (2013.01); B29B 7/90 (2013.01); B29C 48/022 (2019.02); B29C 48/2886 (2019.02); B29C 48/297 (2019.02); B29C 48/402 (2019.02); B29C 48/54 (2019.02); B29C 48/57 (2019.02); B29C 48/625 (2019.02); B29C 48/92 (2019.02); B29B 7/845 (2013.01); B29B 9/06 (2013.01); B29B 9/14 (2013.01); B29C 48/04 (2019.02); B29C 48/767 (2019.02); B29C 2948/92142 (2019.02); B29C 2948/92266 (2019.02); B29C 2948/92447 (2019.02); B29C 2948/92638 (2019.02); B29C 2948/92761 (2019.02); B29C 2948/92942 (2019.02); B29K 2077/00 (2013.01); B29K 2105/12 (2013.01); B29K 2307/04 (2013.01); B29K 2309/08 (2013.01); B29K 2995/0077 (2013.01); B29K 2995/0082 (2013.01);
Abstract

A twin screw extruder () according to the present invention is a twin screw extruder (), in which a reinforcing fiber is fed through an input port () into a molten thermoplastic resin having been formed in a resin feed part () and the reinforcing fiber and the molten thermoplastic resin pass through a kneading part () so that a fiber-reinforced resin composition is manufactured, wherein the kneading part () is provided at the discharge-side end part of the extruder (); a conveying part () is provided between the input port () and the kneading part (), and tip clearance (Sc) of a screw element () configuring the conveying part () is larger than screw clearance (Ss).

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