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1. (WO2018185865) HYDROPHILICITY-IMPARTING AGENT, HYDROPHILIC COATING FILM FORMING METHOD, HYDROPHILIC COATING FILM, AND SOLAR PANEL

Pub. No.:    WO/2018/185865    International Application No.:    PCT/JP2017/014156
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Wed Apr 05 01:59:59 CEST 2017
IPC: C09D 1/00
B05D 3/10
B05D 7/24
B32B 5/16
C09D 5/00
C09K 3/00
G02B 1/18
H01L 31/048
Applicants: PANSURFACE CO.LTD.
パンサーフェス株式会社
KEIHIN CHEMICAL CO. LTD.
京浜化成株式会社
Inventors: FUJIWARA Masanori
藤原正典
KATORI Shigeo
鹿取茂雄
AMAKURA Hiroyuki
天倉弘行
TOKIYOSHI Takeshi
時吉猛
YAMAGATA Hiroyuki
山縣宏之
Title: HYDROPHILICITY-IMPARTING AGENT, HYDROPHILIC COATING FILM FORMING METHOD, HYDROPHILIC COATING FILM, AND SOLAR PANEL
Abstract:
[Problem] A purpose of the present invention is to provide: a novel hydrophilicity-imparting agent that can impart high hydrophilicity to an object to be treated and that enables improved transparency in the infrared region for transparent materials such as a protective cover for a solar panel; and a hydrophilic coating film forming method. Another purpose of the present invention is to provide: a hydrophilic coating film formed by said hydrophilic coating film forming method; and a solar panel in which said hydrophilic coating film is formed on a surface of a protective cover. [Solution] Hydrophilicity is imparted to an object to be treated by a hydrophilicity-imparting agent that contains a solvent and silicic acid-type microparticles comprising a silicate or silica, wherein the silicic acid-type microparticles include at least a minor diameter group having a mode of not more than 10 nm and a major diameter group having a mode of 15 to 30 nm, the solids weight ratio in the solvent between the minor diameter group and the major diameter group is 3:1 to 1:5, and the content of the silicic acid-type microparticles in the hydrophilicity-imparting agent is 0.3 wt% to 3.0 wt%.