Primer compositions their use and coated articles

摘要

A primer composition comprising (A) a vinyl polymer having hydrolyzable silyl groups and/or SiOH groups and organic UV-absorbing groups and (B) an organopolysiloxane cures into a primer layer having a coefficient of linear expansion equal to or less than 150×10 -6 /°C, which allows a polysiloxane hard coat to be applied thereon.