weather resistance particles and weather resistance particle-containing dispersion and weather resistance particle-containing resin composition as well as I was using it weather resistance film and weather resistance base material

摘要

PROBLEM TO BE SOLVED: To provide a weather-resistant particles that are excellent in transparency and UV shielding properties and have excellent long-term weatherability, to provide a weather-resistant particle-containing dispersion liquid, to provide a weather-resistant particle-containing resin composition and to provide a weather-resistant film and a weather-resistant substrate that use the resin composition.;SOLUTION: The weather-resistant particle 1 has a first coating layer 3 composed of silicon oxide in an amount of not less than 5 vol% and not more than 60 vol% based on the volume of the UV shielding particle 2, formed on the surface of a UV shielding particle 2 having an average primary particle size of not less than 5 nm and not more than 100 nm, and have a second coating layer 4 composed of a silicone resin in an amount of not less than 15 vol% and not more than 300 vol% based on the volume of the UV shielding particle 2, formed on the surface of the first coating layer 3, and has an average particle size of not less than 6 nm and not more than 200 nm.;COPYRIGHT: (C)2013,JPO&INPIT