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. 31, 2013
Filed:
Jan. 03, 2008
Kyung-youn Kim, Suwon-si, KR;
Sang-il Kim, Suwon-si, KR;
Kyung-Youn Kim, Suwon-si, KR;
Sang-Il Kim, Suwon-si, KR;
SKC Co., Ltd, Suwon-si, KR;
Abstract
A multilayered aliphatic polyester film of the present invention comprising a first resin layer and a second resin layer laminated on one or both sides of the first resin layer, the first resin layer containing a polylactic-based polymer comprising L-lactic acid in an amount ranging from 50 to 100% by weight, and the second resin layer containing a polylactic-based polymer comprising D-lactic acid in an amount ranging from 5 to 20% by weight, can be easily peeled off by pulling with hands, and has improved heat adhesiveness, heat resistance, transparency, impact resistance, perforation resistance and dimensional stability. Accordingly, it is useful for packaging materials, especially as a disposable film lid for plastic containers.