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. 02, 2014
Filed:
Apr. 08, 2009
Hidenori Suzuki, Ibaraki, JP;
Masanori Uesugi, Ibaraki, JP;
Makoto Kai, Ibaraki, JP;
Mitsuyoshi Shirai, Ibaraki, JP;
Hidenori Suzuki, Ibaraki, JP;
Masanori Uesugi, Ibaraki, JP;
Makoto Kai, Ibaraki, JP;
Mitsuyoshi Shirai, Ibaraki, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
[Problem] To provide a composite film having light-curing property and weather resistance. [Means for solving] A composite film is one that comprises at least a urethane polymer, wherein both an initial b* value of the composite film measured by a spectrocolorimeter (value at an angle of 15 degrees) and a b* value after performing an accelerated weathering test for 120 hours (value at an angle of 15 degrees) are 4.0 or less, and a non-volatile component after heating the composite film at 130° C. for two hours is 96% or more.