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.:
Date of Patent:
Jun. 03, 2014
Filed:
Sep. 16, 2011
Applicants:
Masato Horie, Otsu, JP;
Takuji Higashioji, Otsu, JP;
Nozomi Yokoyama, Otsu, JP;
Inventors:
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/183 (2006.01); C08G 63/13 (2006.01); C08G 63/137 (2006.01); C08G 63/189 (2006.01); C08G 63/199 (2006.01); C08G 63/88 (2006.01);
U.S. Cl.
CPC ...
C08G 63/183 (2013.01); C08G 63/13 (2013.01); C08G 63/137 (2013.01); C08G 63/189 (2013.01); C08G 63/199 (2013.01); C08G 63/88 (2013.01);
Abstract
A biaxially oriented polyester film has a ratio of Young's modulus in the transverse direction to Young's modulus in the machine direction of 1.5 to 3, an average value of refractive indices in the machine direction, in the transverse direction, and in the thickness direction of 1.590 to 1.680, a minor melting peak temperature of 160 to 190° C., and a coefficient of hygroscopic expansion in the transverse direction of 0 to 6 ppm/% RH.