Discs for audio and/or optical data recording comprise two molded discs bonded together with an adhesive comprising methyl methacrylate and (meth)acrylic acid

摘要

Discs for audio and/or optical data recording comprise two molded discs bonded together with an adhesive which comprises: (i) 60-100 wt.% of a copolymer comprising 51-99 wt.% methyl methacrylate, 1-49 wt.% (meth)acrylic acid (optionally in anhydride form and/or combined with alpha -methylstyrene) and 0-10 wt.% comonomer(s); and (ii) 0-40 wt.% of an impact modifier. At least one of the discs is metallized.