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:
Aug. 18, 2015
Filed:
Jun. 25, 2009
Atsuko Noda, Kyoto, JP;
Takayoshi Okuzu, Kyoto, JP;
Hideki Kuwata, Kyoto, JP;
Kiwamu Yuki, Kyoto, JP;
Atsuko Noda, Kyoto, JP;
Takayoshi Okuzu, Kyoto, JP;
Hideki Kuwata, Kyoto, JP;
Kiwamu Yuki, Kyoto, JP;
Unitika, Ltd., Hyogo, JP;
Abstract
Disclosed is a highly adhesive polyester film having a highly adhesive primer layer disposed on at least one side of a substrate polyester film. The substrate polyester film is a stretched film having linear tearability and formed of a mixed polyester resin containing polyethylene terephthalate and a modified polybutylene terephthalate, and the highly adhesive primer layer contains a polyester resin (A) having an acid number of 20 to 60 mg KOH/g and a hydroxyl number of 30 to 150 mg KOH/g, and having an oligomer content of 2.0% by mass or less, and substantially contains no crosslinking agent component.