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:
Oct. 31, 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, Koka, 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 when 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 is irradiated, from one surface, with excitation light, which the light-emitting material is capable of absorbing, in a quantity of light of 7 mW/cm, a difference between luminance A observed on a side of the one surface and luminance B observed on a side of the other surface, (A−B), is 5 cd/mor more. According to the present invention, a thermoplastic film such that when laminated glass is made using the thermoplastic film, information is displayed relatively strongly on one surface, and the information is displayed relatively weakly on the other surface, and a laminated glass comprising this thermoplastic film can be provided.