Patent ID: 6673873
Filing Date: 2004-01-06
Classification: C08L

Abstract:
A substantially transparent, moldable, thermoplastic composition for use in the preparation of a transparent sheet product comprising:a) a methyl methacrylate copolymer of a predominant amount of methyl methacrylate and a minor amount of one or more ethylenically unsaturated monomers; and b) a polyetheresteramide, present in an amount of about 5% to about 35% of the total weight of the composition, to enhance the electrostatic charge dissipation of the copolymer, said polyetheresteramide having a refractive index within about 0.005 units of the refractive index of the copolymer, such that when the composition is injection molded into a 0.125 inch thick plaque, the plaque exhibits a haze of not greater than about 25% and a light transmission of at least about 60%.