Curable pressure sensitive adhesive composition, optical disk producing sheet, and optical disk

摘要

A curable pressure sensitive adhesive composition is made to contain a polymer-containing energy rays-curable component and fine particles having an average particle diameter of not more than 30 nm, wherein the solid content of the fine particles is made to be from 5 to 60 wt%. A stamper-receiving layer or a curable pressure sensitive adhesive layer for bonding a protective layer is formed using this curable pressure sensitive adhesive composition, thus producing an optical disk producing sheet. This optical disk producing sheet has a low volume shrinkage rate upon curing, and has excellent adhesiveness. If this optical disk producing sheet is used, then an optical disk having little warping and excellent inter-layer adhesion can be obtained.