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. 14, 2018
Filed:
Dec. 21, 2015
3m Innovative Properties Company, St. Paul, MN (US);
Yorinobu Takamatsu, Sagamihara, JP;
Akihiko Nakayama, Gotemba, JP;
Daigo Yasuda, Hachioji, JP;
Minori Kawagoe, Sagamihara, JP;
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A film capable of covering an article having a three-dimensional shape by heat expansion provided by one embodiment of the present disclosure comprises an outermost layer disposed on an outermost surface, and a polyurethane thermal adhesive layer, which contains a thermoplastic polyurethane selected from the group consisting of polyester-based polyurethanes and polycarbonate-based polyurethanes and is thermally adhered to the article during the heat expansion, wherein the fracture strength of the polyurethane thermal adhesive layer is not less than 1 MPa at 135° C., and the storage modulus at 150° C. and frequency 1.0 Hz is from 5×10Pa to 5×10Pa, and the coefficient of loss tan δ is not less than 0.1.