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:
Dec. 17, 2013
Filed:
Sep. 07, 2010
Shigeru Aoyama, Shiga, JP;
Atsushi Shiomi, Shiga, JP;
Tomohide Masuda, Shiga, JP;
Kozo Takahashi, Shiga, JP;
Shigeru Aoyama, Shiga, JP;
Atsushi Shiomi, Shiga, JP;
Tomohide Masuda, Shiga, JP;
Kozo Takahashi, Shiga, JP;
Toray Industries, Inc., , JP;
Abstract
A polyester film has a laminate structure including a polyester layer (layer P) containing a crystalline polyester and inorganic particles and a polyester layer (layer P) containing a crystalline polyester, inorganic particles, and an antihydrolysis segment, wherein the content (Wa) of the inorganic particles in the layer Pis at least 10 mass % of the layer P, the difference between the content (Wa) (mass %) of the inorganic particles in the layer Pand the content (Wa) (mass %) of the inorganic particles in the layer P, Wa−Wa, is 5 to 25 mass %, and the content (Wb) of the antihydrolysis segment in the layer Pis 0.02 to 1.5 mass % of the layer P