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:
Feb. 14, 2017
Filed:
Nov. 02, 2011
Young-man Yoo, Seoul, KR;
Jae-il Chung, Gyeonggi-do, KR;
Tae-woong Lee, Gyeonggi-do, KR;
Kye-yune Lee, Gyeonggi-do, KR;
Young-Man Yoo, Seoul, KR;
Jae-Il Chung, Gyeonggi-do, KR;
Tae-Woong Lee, Gyeonggi-do, KR;
Kye-Yune Lee, Gyeonggi-do, KR;
Other;
Abstract
The present invention relates to a polylactic acid resin film which has excellent flexibility, mechanical properties, stability, and transparency while having a specific biodegradability of the polylactic acid resin, and is useful as a packaging material. The present invention provides a polylactic acid resin film, comprising a polylactic acid resin including a hard segment comprising a specific polylactic acid repeating unit, and a soft segment comprising a polyurethane polyol repeating unit in which a specific polyether polyol repeating units are linearly linked via a urethane bond, wherein the total Young's modulus in both machine direction and transverse direction of the film is 350 to 750 kgf/mm, and the total initial tensile strength in both machine direction and transverse direction of the film is 20 kgf/mmor more.