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1. (WO2017033533) THERMOCHROMIC FILM AND THERMOCHROMIC COMPOSITE

Pub. No.:    WO/2017/033533    International Application No.:    PCT/JP2016/067606
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Jun 15 01:59:59 CEST 2016
IPC: C03C 27/12
B32B 27/20
C09K 9/00
Applicants: KONICA MINOLTA, INC.
コニカミノルタ株式会社
Inventors: SUZUKI, Shinichi
鈴木 伸一
KUMAGAI, Takenori
熊谷 丈範
Title: THERMOCHROMIC FILM AND THERMOCHROMIC COMPOSITE
Abstract:
The present invention addresses the problem of providing a thermochromic film and a thermochromic composite which include vanadium dioxide particles having excellent thermochromic properties and durability. This thermochromic film has, on a transparent substrate, an optically functional layer that includes at least vanadium dioxide particles with thermochromic properties and a binder resin. The thermochromic film is characterized in that: the binder resin has a reactive functional group and is water-soluble; water content of the optically functional layer after being left to stand at 80°C and a humidity of 80% for 24 hours is in the range of 0.5-5.0 g/m2; and the thickness of the optically functional layer is in the range of 0.5-5.0 μm.