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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 8835539 B1

PDFFull Text
Date of Patent:
Sep. 16, 2014

Filed:

Jan. 31, 2012

Manufacturing method for resin composition containing fine paper powder

Applicant:

Takamichi Matsushita, Tokyo, JP;

Inventor:

Takamichi Matsushita, Tokyo, JP;

Assignee:

Kankyokeieisogokenkyusho Co., Inc., Tokyo, JP;

Attorney:

Paul A. Guss

Primary Examiner:

Ling Choi

Assistant Examiner:

Catherine S Branch

Int. Cl.
CPC ...
B29B 7/00 (2006.01); C08L 67/04 (2006.01); C08L 25/06 (2006.01); C08L 23/12 (2006.01); C08L 23/06 (2006.01); C08J 5/04 (2006.01); B29C 47/60 (2006.01); B29C 47/64 (2006.01); C08K 11/00 (2006.01); B29K 511/12 (2006.01); B29K 67/00 (2006.01); B29C 47/76 (2006.01); B29C 47/00 (2006.01); B29K 311/12 (2006.01);
U.S. Cl.
CPC ...
C08J 5/045 (2013.01); B29K 2511/12 (2013.01); B29K 2067/046 (2013.01); B29C 47/767 (2013.01); B29C 47/6012 (2013.01); B29C 47/60 (2013.01); B29C 47/64 (2013.01); B29C 47/0009 (2013.01); C08K 11/005 (2013.01); B29C 47/6031 (2013.01); B29K 2311/12 (2013.01); B29C 47/0004 (2013.01);
Abstract

A resin composition containing fine paper powder used in molding is obtained by using a non-intermeshing type counter-rotating twin-screw kneading extruder () having rotor units () disposed in at least a part of screws (), respectively, to knead a raw material containing a fine paper powder of an average particle diameter of 10 to 100 μm from 20 to 70 parts by weight, and a thermoplastic resin from 30 to 80 parts by weight, with a sum of the fine paper powder and the thermoplastic resin being 100 parts by weight, at a temperature of no more than 210° C.

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Matsushita, Takamichi. (2014). Manufacturing method for resin composition containing fine paper powder (U.S. Patent No. 8835539). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8835539

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