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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 10420209 B1

PDFFull Text
Date of Patent:
Sep. 17, 2019

Filed:

Aug. 24, 2015

Highly heat-resistant polyester sheet

Applicants:

Hiroshima University, Higashi-Hiroshima-shi, Hiroshima, JP;

Teijin Film Solutions Limited, Tokyo, JP;

Inventors:

Masamichi Hikosaka, Hiroshima, JP;

Kiyoka Okada, Hiroshima, JP;

Yoshitaka Tanaka, Tokyo, JP;

Assignee:

HIROSHIMA UNIVERSITY, Hiroshima, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
H05K 1/03 (2006.01); B32B 27/36 (2006.01); C08L 67/03 (2006.01); B32B 27/06 (2006.01); C08L 67/00 (2006.01); C08L 67/02 (2006.01); C08G 63/181 (2006.01); C08G 63/187 (2006.01); C08G 63/189 (2006.01); C08G 63/16 (2006.01); C08G 63/02 (2006.01); C08G 63/12 (2006.01); C08G 63/18 (2006.01); C08G 63/185 (2006.01); B29C 48/08 (2019.01); B29C 48/88 (2019.01); C08J 5/18 (2006.01); B29D 7/00 (2006.01); H05K 3/00 (2006.01); C08G 63/183 (2006.01); B29K 67/00 (2006.01); B29L 31/34 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0393 (2013.01); B29C 48/08 (2019.02); B29C 48/88 (2019.02); B29C 48/914 (2019.02); B29D 7/00 (2013.01); C08J 5/18 (2013.01); H05K 3/0014 (2013.01); B29K 2067/003 (2013.01); B29K 2995/0016 (2013.01); B29L 2031/3425 (2013.01); B32B 27/06 (2013.01); B32B 27/36 (2013.01); B32B 2307/30 (2013.01); B32B 2307/306 (2013.01); B32B 2307/514 (2013.01); B32B 2307/704 (2013.01); B32B 2307/72 (2013.01); B32B 2367/00 (2013.01); B32B 2457/08 (2013.01); C08G 63/02 (2013.01); C08G 63/12 (2013.01); C08G 63/16 (2013.01); C08G 63/18 (2013.01); C08G 63/181 (2013.01); C08G 63/183 (2013.01); C08G 63/185 (2013.01); C08G 63/187 (2013.01); C08G 63/189 (2013.01); C08J 2367/02 (2013.01); C08L 67/00 (2013.01); C08L 67/02 (2013.01); C08L 67/03 (2013.01); H05K 1/03 (2013.01); H05K 1/0326 (2013.01); H05K 2201/0145 (2013.01); Y10T 428/31681 (2015.04); Y10T 428/31786 (2015.04);
Abstract

The polyester sheet in accordance with an aspect of the present invention contains crystals of polyester which is a polycondensate of polyvalent carboxylic acid and polyalcohol. The polyester sheet contains nano-oriented crystals which contain crystals of polyester in each of which a polymer chain is highly oriented and each of which has a crystal size of 50 nm or less. A heatproof temperature of the polyester sheet is higher than a temperature that is lower than an equilibrium melting point of the polyester by 80° C., and a melting point of the polyester sheet is higher than a temperature that is lower than the equilibrium melting point of the polyester by 40° C.

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