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.

Abstract: Polymeric composite composition including two zones (Z1) and (Z2), at least one zone of the zones (Z1) or (Z2) includes a reinforcing material (RM1), while the other zone of the zones (Z1) or (Z2) includes no reinforcing material or a reinforcing material (RM2) that is different from reinforcing material (RM1). In particular, polymeric composite composition including two zones (Z1) and (Z2) that are in direct contact, at least one zone of the zones (Z1) or (Z2) includes a reinforcing material (RM1), while the other zone of the zones (Z1) or (Z2) includes no reinforcing material or a reinforcing material (RM2) that is different from reinforcing material (RM1). Also, a process for manufacturing such a polymeric composite composition and the use. A process for manufacturing articles in form of mechanical parts or structural elements made of composite material including the polymeric composite composition.

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.

Abstract: The invention relates to an unsaturated polyester resin comprising a) a lactic acid-modified unsaturated polyester and b) a copolymerizable comonomer, with replacement, with lactic acid, in the composition of an initial polyester, of: i) up to 90 mol % of phthalic anhydride of the acid component of the initial polyester, the acid component comprising from 80 to 20 mol % of maleic anhydride (MA) or fumaric acid, and from 20 to 80 mol % of phthalic anhydride (PA), the polyol component of the initial polyester comprising from 50 to 100 mol % of propylene glycol (PG) and from 0 to 50 mol % of a polyol among ethylene glycol (EG), diethylene glycol (DEG), dipropylene glycol (DPG) and/or 1,3-butylene glycol and/or 1,4-butanediol and/or neopentyl glycol (NPG), ii) up to 100% of a polyol from DPG and DEG, present in an initial overall molar amount ranging up to 50% of the polyol component of the initial polyester and also comprising PG, with the acid component of the initial polyester being maleic anhydride (MA) or f

Abstract: An ethylenically unsaturated prepolymer comprising an ending X which reacts by condensation being a hydroxyl and/or amine or free isocyanate group and optionally an ending X? having ethylenic unsaturation, the prepolymer being the reaction product of a first component A comprising a mixture of i) a first ethylenically unsaturated resin carrying specific hydroxyl and/or amine reactive endings, and/or ii) optionally a second resin different from resin i), being an ethylenically unsaturated hydroxylated resin and/or a hydroxylated and/or aminated saturated resin, and/or iii) optionally a third reactive saturated resin, iv) optionally an unsaturated monoalcohol up to 30% in equivalents of the OH+NH2 total, and a second component B comprising a polyisocyanate with a functionality equal to 2 or greater than 2, A and B being in proportions to effectively avoid any gelling by crosslinking.

Abstract: The invention relates to an unsaturated polyester resin comprising a) a lactic acid-modified unsaturated polyester and b) a copolymerizable comonomer, with replacement, with lactic acid, in the composition of an initial polyester, of: i) up to 90 mol % of phthalic anhydride of the acid component of the initial polyester, the acid component comprising from 80 to 20 mol % of maleic anhydride (MA) or fumaric acid, and from 20 to 80 mol % of phthalic anhydride (PA), the polyol component of the initial polyester comprising from 50 to 100 mol % of propylene glycol (PG) and from 0 to 50 mol % of a polyol among ethylene glycol (EG), diethylene glycol (DEG), dipropylene glycol (DPG) and/or 1,3-butylene glycol and/or 1,4-butanediol and/or neopentyl glycol (NPG), ii) up to 100% of a polyol from DPG and DEG, present in an initial overall molar amount ranging up to 50% of the polyol component of the initial polyester and also comprising PG, with the acid component of the initial polyester being maleic anhydride (MA) or f

Abstract: The present invention relates to an ethylenically unsaturated prepolymer comprising at least one ending X which reacts by condensation chosen from hydroxyl and/or amine or free isocyanate groups and optionally an ending X? having ethylenic unsaturation, the prepolymer being the reaction product of the following components A and B: A) a first component A comprising the following mixture: i) at least one first ethylenically unsaturated resin carrying specific hydroxyl and/or amine reactive endings, and/or ii) optionally at least one second resin, other than the resin i), chosen from: ethylenically unsaturated hydroxylated resins, and/or hydroxylated and/or aminated saturated resins, and/or iii) optionally at least one third reactive saturated resin, iv) optionally at least one unsaturated monoalcohol up to 30% in equivalents of the OH+NH2 total, B) a second component B comprising at least one polyisocyanate with a functionality equal to 2 or greater than 2, A and B being in proportions which make it pos