LOW WATER-ABSORBING POLYMER WITH HIGH OPTICAL AND MECHANICALPROPERTIES, MANUFACTURE, FORMING MATERIAL, AND MANUFACTURE OF CARRIER FOR LIGHT READING INFOMATION AND PLATE FOR LIGHT READING INFOMATION MEMORY

摘要

Homopolymers of para-methylstyrene and copolymers thereof with monomers such as methyl methacrylate, which polymers exhibit very low water absorption in combination with good optical and mechanical properties and are useful for making optically readable data storage disks.