열가소성 필름, 및 접합 유리

• Main Authors: NAKAJIMA DAISUKE, CHOU KINRYOU, OOTA YUUSUKE, HAMADA TAKANORI
• Format: Patent
• Language: Korean
• Published: 01.12.2021
• Subjects: LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; TRANSPORTING; VEHICLES IN GENERAL; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES

열가소성 필름(10)은, 발광층(11)을 구비하는 열가소성 필름으로서, 발광층(11)이, 열가소성 수지와, 여기광이 조사됨으로써 발광하는 발광 재료를 포함하고, JIS　R　3211(1998)에 준거한 두께 2.5mm의 2장의 클리어 유리를, 상기 열가소성 필름을 개재하여 접착시켜 얻은 접합 유리의, JIS　R3205　2005에 의거하여 내광성 시험을 2000시간 실시했을 때의 황색도의 변화가 4 이하이다.　 본 발명에 의하면, 장기간 자외선에 노출되었을 경우에도, 발광 강도가 저하되기 어려운, 발광 재료를 포함하는 열가소성 필름을 제공한다. A thermoplastic film 10 is a thermoplastic film comprising a light-emitting layer 11, wherein the light-emitting layer 11 comprises 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.