(Meth)acrylic composition, composite material obtained from such a composition, method for producing same and uses thereof

Abstract

The invention relates to a (meth)acrylic composition comprising: (a) 100 parts by weight of a liquid (meth)acrylic syrup comprising: (a1) from 10% by weight to 50% by weight of one or more (meth)acrylic polymers P1, and (a2) from 50% by weight to 90% by weight of one or more (meth)acrylic monomers M1 comprising only one (meth)acrylic function per monomer, (b) from 20 parts by weight to 300 parts by weight of a mineral filler C, (c) from 0.01 part by weight to 5 parts by weight of a (meth)acrylic monomer M2 comprising at least two (meth)acrylic functions per monomer, (d) from 0.01 part by weight to 5 parts by weight of a (meth)acrylic monomer M3, the monomer M3 being: either a (meth)acrylic monomer M31 comprising only one (meth)acrylic function per monomer and being different from the monomer(s) M1, or a (meth)acrylic monomer M32 comprising at least two (meth)acrylic functions per monomer and being different from the monomer M2, and (e) from 0.01 part by weight to 5 parts by weight of a polymerization initiator. The invention also relates to a composite material obtained from this (meth)acrylic composition, to a process for manufacturing this composite material and to the uses of the (meth)acrylic composition and of the composite material.

Dependencies are inferred from the claim text.