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:
Apr. 10, 2018
Filed:
Dec. 03, 2014
Stretched laminated film for use in piezoelectric polymer material, and manufacturing method thereof
Teijin Limited, Osaka-shi, Osaka, JP;
A School Corporation Kansai University, Suita-shi, Osaka, JP;
Tetsuo Yoshida, Gifu, JP;
Yoshiro Tajitsu, Osaka, JP;
Atsuko Kato, Gifu, JP;
Tomoka Yoshimura, Gifu, JP;
TEIJIN LIMITED, Osaka, JP;
A SCHOOL CORPORATION KANSAI UNIVERSITY, Osaka, JP;
Abstract
The object of the present invention is to provide a laminated film made of polylactic acids which is not prone to delamination while having excellent piezoelectric properties and a manufacturing method thereof. That is, the present invention is obtained by the stretched laminated film manufactured by a co-extrusion process for use in piezoelectric polymer materials, containing a layer (A) which has poly-L-lactic acid as the primary component and contains an impact modifier in the range of 0.1 to 10 mass % and a layer (B) which has poly-D-lactic acid as the primary component and contains an impact modifier in the range of 0.1 to 10 mass %.