Patent ID: 7744976

Claim:
An optical disk producing sheet comprising: a curable pressure sensitive adhesive layer formed using a curable pressure sensitive adhesive composition including 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 from 5 to 60 wt %, the curable pressure sensitive adhesive layer has a pre-curing storage elastic modulus of from 1×10 3 to 5×10 6 Pa, and has a post-curing storage elastic modulus of at least 1×10 8 Pa, the curable pressure sensitive adhesive layer acts as a stamper-receiving layer, and the polymer-containing energy rays-curable component comprises an acrylate copolymer having energy rays-curable pendant groups and a weight average molecular weight of 150,000 to 1,500,000.