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:
Mar. 22, 2016
Filed:
Mar. 30, 2011
Tsuyoshi Takihara, Hiroshima, JP;
Seiichiro Mori, Hiroshima, JP;
Eiko Okamoto, Hiroshima, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
A laminate includes a substrate, and a surface layer laminated on the substrate with an intermediate layer sandwiched therebetween. The intermediate layer has a thickness of 8 to 40 μm. The surface layer has a thickness 0.4 to 1.5 times that of the intermediate layer. The laminate satisfies the following (A) and/or (B): (A) tan δ (loss tangent) of the intermediate layer as measured under a condition of a vibration frequency of 1 Hz at 20° C. is 0.2 or greater; and (B) A ratio (MG/SG) of a storage modulus (MG) of the intermediate layer to a storage modulus (SG) of the surface layer as measured under a condition of a vibration frequency of 1 Hz at 20° C. is 0.003 or greater and 0.14 or less.