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:
May. 12, 2009
Filed:
Nov. 28, 2005
Naoki Mizuno, Otsu, JP;
Shigenori Iwade, Otsu, JP;
Hideki Sugihara, Otsu, JP;
Chikao Morishige, Otsu, JP;
Yasuhiro Nishino, Osaka, JP;
Katsuhiko Nose, Osaka, JP;
Toshitake Suzuki, Osaka, JP;
Naoki Mizuno, Otsu, JP;
Shigenori Iwade, Otsu, JP;
Hideki Sugihara, Otsu, JP;
Chikao Morishige, Otsu, JP;
Yasuhiro Nishino, Osaka, JP;
Katsuhiko Nose, Osaka, JP;
Toshitake Suzuki, Osaka, JP;
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Abstract
The present invention provides a laminated thermoplastic resin film which is excellent in adhesion and blocking resistance. A laminated thermoplastic resin film has a covering layer containing a copolymerized polyester resin and a polyurethane resin on one side or both sides of a thermoplastic resin film, characterized in that the covering layer has a microphase-separated or nanophase-separated structure in polyester (PE) phase A comprising a copolymerized polyester resin as a main component and polyurethane (PU) phase B comprising a polyurethane resin as a main component, and when the covering layer is observed by a scanning probe microscopy in phase measurement mode, an area ration (surface fraction of PEs) of polyester phase A (which indicates a dark phase in phase image) of the surface of the covering layer defined by following the formula (1) is 35% or more and less than 90% per 20 a measurement area of 5 μm×5 μm.Surface fraction of PEs (%)=(area of PEs phase A/measurement area)×100.  (1)