Abstract: The invention concerns a thermosetting moulding composition comprising: a polyester or vinyl ester epoxy resin (A) in solution in an ethylenically unsaturated liquid monomer (B); at least an anti-shrink additive (C); an organic peroxide catalyst; and a mineral filler. Said composition is characterized in that the ethylenically unsaturated liquid monomer (B) is a vinyltoluene and/or a t-butyl styrene; and the anti-shrink additive(s) is/are free of add functionality and is/are selected among methyl methacrylate copolymers and a comonomer which is a vinyl and/or a methyl acrylate and/or ethyl acrylate monomer, in solution in the ethylenically unsaturated monomer (B). Such a composition is designed, in particular, for the automotive industry.

Abstract: Moldable and pigmentable heat-curable compositions which can be employed for forming molded articles with zero or practically zero shrinkage (low profile type) or a small expansion include a heat-curable resin, a catalyst, a (meth)acrylic polymer in powder form with a dimension smaller than 150 .mu.m, at least one inorganic filler and, optionally, reinforcing fibers and organic or inorganic pigments.

Abstract: Thermosetting composition. According to the invention, it comprises approximately, by weight:33% to 43% of a thermosetting resin;5% to 15% cellulose fibers;15% to 21% mineral fillers;12.5% to 22.5% reinforcement fibers of high mechanical strength.