| 摘要 |
PURPOSE:A disc material useful as a digital audio disc, etc., causing slight bending, having low water vapor permeation and improved long-term stability, obtained by copolymerizing a monomer with another monomer shown by a specific formula as a crosslinking agent. CONSTITUTION:A monomer shown by the formula (R is H, or alkyl; X is H or halogen; n+m is 0-10) is blended with another monomer (e.g., styrene, methyl methyacrylate, etc.), and cured, to give the desired copolymer (disc). USE:A digital audio disc, video disc, memory disc, etc. |
