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:
Nov. 06, 2018
Filed:
Dec. 21, 2012
Nitto Denko Corporation, Osaka, JP;
Hiroki Senda, Osaka, JP;
Shigeki Ishiguro, Osaka, JP;
Satomi Yoshie, Osaka, JP;
Yuka Sekiguchi, Osaka, JP;
Rie Hayashiuchi, Osaka, JP;
Asuka Endo, Osaka, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
Polylactic acid film or sheet having tear strength so as not to break or tear during, for example, production or processing of the film or sheet or winding thereof into a roll, and causing neither melt nor deformation at high temperatures more than 100° C. In the polylactic acid film or sheet, the tear strength is not less than 100 N/mm when the film or sheet is torn at least in a flow direction (MD), a rate of dimensional change due to heating is not more than ±3% in the flow direction (MD) and a transverse direction (TD), and a rate of dimensional change due to loaded heating is not more than ±3% in the flow direction (MD).