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.

Date of Patent:
Nov. 15, 2016

Filed:

May. 18, 2012
Applicants:

Yuichiro Sumi, Tokyo, JP;

Naoyuki Kawamata, Kodaira, JP;

Inventors:

Yuichiro Sumi, Tokyo, JP;

Naoyuki Kawamata, Kodaira, JP;

Assignee:

TBM CO., LTD., Chiyoda-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 55/00 (2006.01); C08J 5/18 (2006.01); B41M 5/52 (2006.01); B29C 47/00 (2006.01);
U.S. Cl.
CPC ...
B29C 55/005 (2013.01); B41M 5/5218 (2013.01); C08J 5/18 (2013.01); B29C 47/0021 (2013.01); B29C 47/0057 (2013.01); C08J 2323/06 (2013.01);
Abstract

The problem addressed by the invention lies in providing a method for producing an inorganic substance powder highly-oriented thin film sheet with which it is possible to produce a sheet of uniform thickness while preventing the generation of impurities, improving sheet surface properties, adjusting apparent specific gravity, and the like. The method for producing a thin film sheet comprises a step for preparing a predetermined inorganic substance powder, thermoplastic resin, and auxiliary agent, a step for exposing the starting materials mixed at a predetermined mixture ratio to high shear stress while kneading, a step for feeding the kneaded starting materials to a T die-type extrusion molding device and molding a sheet, and a step for adjusting the apparent gravity as desired by stretching under predetermined conditions.


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