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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 9283707 B1

PDFFull Text
Date of Patent:
Mar. 15, 2016

Filed:

Sep. 02, 2009

Method for producing liquid-crystalline polyester resin composition

Applicants:

Shintaro Saito, Tsukuba, JP;

Sadanobu Iwase, Tsuchiura, JP;

Hiroshi Harada, Tsukuba, JP;

Inventors:

Shintaro Saito, Tsukuba, JP;

Sadanobu Iwase, Tsuchiura, JP;

Hiroshi Harada, Tsukuba, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Larry Thrower

Int. Cl.
CPC ...
B29C 47/00 (2006.01); B29C 47/40 (2006.01); B29C 47/62 (2006.01); C08J 3/20 (2006.01); C08K 3/22 (2006.01); C08K 9/02 (2006.01); C09K 19/38 (2006.01); C09K 19/52 (2006.01); B29C 47/60 (2006.01); B29C 47/92 (2006.01); B29C 47/08 (2006.01); B29C 47/76 (2006.01); B29K 67/00 (2006.01); C08K 7/14 (2006.01); C08L 67/03 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
B29C 47/0004 (2013.01); B29C 47/0011 (2013.01); B29C 47/40 (2013.01); B29C 47/6056 (2013.01); B29C 47/62 (2013.01); B29C 47/92 (2013.01); C08J 3/203 (2013.01); C08K 3/22 (2013.01); C08K 9/02 (2013.01); C09K 19/3809 (2013.01); C09K 19/52 (2013.01); B29C 47/0871 (2013.01); B29C 47/767 (2013.01); B29C 2947/92704 (2013.01); B29C 2947/92895 (2013.01); B29K 2067/00 (2013.01); C08J 2367/03 (2013.01); C08K 7/14 (2013.01); C08L 67/03 (2013.01); H01L 51/5271 (2013.01);
Abstract

The present invention provides a method for producing a liquid-crystalline polyester resin composition, the method comprising providing a twin-screw extrusion granulator that comprises a cylinder provided with at least one supply port and two screws installed in the cylinder; supplying (A) a liquid-crystalline polyester and (B) a titanium oxide filler into the cylinder through one of the at least one supply port; and melt-kneading the components (A) and (B), wherein a cylinder setting temperature is set at a temperature of (Tm−10)° C. or lower wherein Tm is a fluidization temperature of the component (A).

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