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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 9168675 B1

PDFFull Text
Date of Patent:
Oct. 27, 2015

Filed:

Dec. 28, 2012

Method for producing resin composition

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Satoshi Sekimura, Tokyo, JP;

Hiroshi Harada, Singapore, SG;

Assignee:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Attorney:

Panitch Schwarze Belisario & Nadel LLP

Primary Examiner:

Terressa Boykin

Int. Cl.
CPC ...
C08G 64/00 (2006.01); B29B 7/00 (2006.01); B29B 7/90 (2006.01); B29B 7/48 (2006.01); C08J 5/04 (2006.01); B29C 47/38 (2006.01); B29C 47/60 (2006.01); C08K 7/14 (2006.01); B29C 47/10 (2006.01); C08G 63/02 (2006.01); B29B 7/84 (2006.01); B29B 7/86 (2006.01); G02B 1/04 (2006.01); B29K 67/00 (2006.01); B29B 9/06 (2006.01); B29B 9/12 (2006.01); B29B 9/14 (2006.01);
U.S. Cl.
CPC ...
B29B 7/002 (2013.01); B29B 7/482 (2013.01); B29B 7/90 (2013.01); B29C 47/1081 (2013.01); B29C 47/38 (2013.01); B29C 47/6062 (2013.01); C08J 5/044 (2013.01); C08K 7/14 (2013.01); B29B 7/845 (2013.01); B29B 7/86 (2013.01); B29B 9/06 (2013.01); B29B 9/12 (2013.01); B29B 9/14 (2013.01); B29C 2947/92209 (2013.01); B29C 2947/92704 (2013.01); B29C 2947/92895 (2013.01); B29K 2067/00 (2013.01); G02B 1/043 (2013.01);
Abstract

A method for producing a resin composition using an extruder, the extruder having a cylinder and a screw disposed inside the cylinder, the cylinder being provided with a main feed port and further optionally provided with a side feed port disposed downstream in an extrusion direction from the main feed port, and the method comprising: supplying a resin (A) in the total amount to the extruder from the main feed port; supplying a fibrous filler (B), whose a weight average fiber length is 1 mm or more, in the total amount to the extruder from the main feed port, or, with the extruder being provided with the side feed port, supplying the fibrous filler (B) partly to the extruder from the main feed port and the remainder to the extruder from the side feed port; melt-kneading the supplied resin (A) and the fibrous filler (B); and extruding the melt-kneaded material.

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