Method of thermally shaping polymethyl methacrylate sheets, and the shaped products

摘要

Describes a method of thermoforming a sheet of poly (methyl methacrylate) having a reduced viscosity of at least 1.5, protected on at least one of its faces by a film, in intimate contact with it , of an ethylene polymer which has undergone a corona discharge treatment. According to the invention, a protective film of ethylene polymer of density not exceeding 0.935 and with a melt index of less than 1.0 g / 10 min.