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. 05, 2023
Filed:
Mar. 19, 2020
Sekisui Chemical Co., Ltd., Osaka, JP;
Yuusuke Oota, Moriyama, JP;
Kinryou Chou, Kusatsu, JP;
Daisuke Nakajima, Land Nordrhein-Westfalen, DE;
Takanori Hamada, Shiga, JP;
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Abstract
A thermoplastic filmis a thermoplastic film comprising a light-emitting layer, wherein the light-emitting layercomprises a thermoplastic resin and a light-emitting material that emits light by being irradiated with excitation light, and a change in yellowness of laminated glass obtained by bonding two sheets of clear glass in accordance with JIS R 3211 (1998) having a thickness of 2.5 mm with the thermoplastic film interposed therebetween after conducting a light resistance test for 2000 hours based on JIS R3205 2005 is 4 or less. The present invention provides a thermoplastic film comprising a light-emitting material, in which the emission intensity is unlikely to lower even when the thermoplastic film is exposed to ultraviolet rays for a long period of time.