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. 18, 2003
Filed:
Sep. 25, 2001
Applicant:
Inventors:
Junichi Narita, Ibaraki-ken, JP;
Tohru Sawai, Ibaraki-Ken, JP;
Ichiro Takeishi, Ibaraki-ken, JP;
Suekazu Itoh, Ibaraki-ken, JP;
Assignee:
Tohcello, Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/706 ; B32B 2/710 ; B32B 2/718 ; B32B 2/736 ;
U.S. Cl.
CPC ...
B32B 2/706 ; B32B 2/710 ; B32B 2/718 ; B32B 2/736 ;
Abstract
Disclosed is a composition provided with biodegradable property and transparency which is excellent in heat sealing property at low temperatures, peelability and adhesiveness to substrate as well as a film or laminate of the composition. The composition comprises as indispensable components thereof 27-70% by weight of polylactic acid, 70-27% by weight of an aliphatic polyester, and 1-20% by weight of a tackifier selected from the group consisting of: an aliphatic cyclic hydrocarbon resin, a metal salt of a rosin ester, and a rosin ester having an acid number of 10 or less.