Abstract: An impact resistant poly(methyl methacrylate) composition which comprises a solid external phase and a discrete microdispersed solid internal phase with refractive indices in the range of about 1.45 to about 1.55. Said composition is prepared by polymerizing methyl methacrylate monomer, co-monomer mixture or sirup thereof in the presence of a microdispersion therein of a cross-linked graft polymer prepared by copolymerizing a mixture of acrylic or methacrylic ester, selected vinyl substituted monomer and a selected polyfunctional monomer. The composition of this invention can be particularly suitable for use where clear sheet glass is used and where a clear plastic material is desired having good impact strength and optical properties.

Abstract: Thermosetting powder coating compositions comprising (A) a carboxyl functional thermosetting acrylic interpolymer prepared by the polymerization of a monomeric mixture comprised of (1) a vinyl aromatic hydrocarbon, (2) a methacrylic acid ester, (3) an acrylic acid ester and (4) an olefinically unsaturated carboxylic acid and (B) at least one curing agent selected from the group consisting of di- and multifunctional epoxides.