| abstract |
(57) [Summary] [Structure] A first layer which is an outermost layer formed by treating with a treatment agent containing a compound (1) capable of forming a surface having a contact angle value with water of 70 degrees or more, A second layer, which is a lower layer formed by thermally decomposing the polymer fine particles by heating the thin film obtained by treating with the treatment agent containing the compound (2) capable of forming the heat resistant polymer thin film and the polymer fine particles; A substrate having. [Effect] It has excellent water repellency and is semi-permanently maintained without dust, dirt, or water droplets attached. |