Abstract: The invention relates to a thermoplastic polymer comprising at least one 1,4:3,6-dianhydrohexitol unit (A), at least one alicyclic diol unit (B) other than the 1,4:3,6-dianhydrohexitol units (A) and at least one high-viscosity terephthalic acid unit (C).

Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrate. The present invention relates in particular to a polyurethane composition comprising isosorbide as a diol chain extender, and to the polyurethane coating obtained from this composition.

Abstract: The invention relates to a crosslinking compound of formula (I) In particular, the present invention relates to a liquid composition comprising a monomer, a (meth)acrylic polymer and at least one crosslinking compound of formula (I). This liquid composition may be used in the form of a syrup and in particular in the form of a syrup for impregnating fibers or fibrous material. The invention also relates to a pseudo-thermoplastic material obtained after polymerization of the liquid composition being at least partially crosslinked. The invention also relates to a process for manufacturing such a liquid composition. The invention also relates to a process for impregnating a long-fiber fibrous substrate with said liquid composition. The invention also relates to a fibrous substrate impregnated with said liquid composition which is useful for manufacturing composite parts.

Abstract: The present invention relates to the use of bis-anhydrohexitol ethers as reactive diluents in a crosslinkable resin, adhesive, coating or composite matrix composition. Not only do these products make it possible to advantageously reduce the viscosity of the mixtures obtained, but they also lead to a very small reduction in the glass transition temperature of the crosslinked mixtures, compared to other reactive diluents, while spectacularly improving the mechanical properties of the latter such as the Young's modulus, the tensile strength, the elongation at break and the toughness.

Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrates. The present invention relates in particular to a polyurethane composition with a high biosourced monomer content, comprising isosorbide as a diol chain extender and a pentamethylene diisocyanate trimer; the invention also relates to the polyurethane coating obtained from this composition.

Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrate. The present invention relates in particular to a polyurethane composition comprising isosorbide as a diol chain extender, and to the polyurethane coating obtained from this composition.

Abstract: The present invention relates to the use of bis-anhydrohexitol ethers as reactive diluents in a crosslinkable resin, adhesive, coating or composite matrix composition. Not only do these products make it possible to advantageously reduce the viscosity of the mixtures obtained, but they also lead to a very small reduction in the glass transition temperature of the crosslinked mixtures, compared to other reactive diluents, while spectacularly improving the mechanical properties of the latter such as the Young's modulus, the tensile strength, the elongation at break and the toughness.

Abstract: The invention relates to a crosslinking compound of formula (I) In particular, the present invention relates to a liquid composition comprising a monomer, a (meth)acrylic polymer and at least one crosslinking compound of formula (I). This liquid composition may be used in the form of a syrup and in particular in the form of a syrup for impregnating fibers or fibrous material. The invention also relates to a pseudo-thermoplastic material obtained after polymerization of the liquid composition being at least partially crosslinked. The invention also relates to a process for manufacturing such a liquid composition. The invention also relates to a process for impregnating a long-fiber fibrous substrate with said liquid composition. The invention also relates to a fibrous substrate impregnated with said liquid composition which is useful for manufacturing composite parts.

Abstract: The invention concerns a method for producing a polyester containing at least one 1,4:3,6-dianhydrohexitol unit comprising: •a step of introducing, into a reactor, monomers comprising at least one monomer (A) that is a diacid or a diester and at least one monomer (B) that is a 1,4:3,6-dianhydrohexitol; •a step of introducing, into the reactor, a catalytic system comprising either a catalyst comprising the element germanium and a catalyst comprising the element aluminum, or a catalyst comprising the elements germanium and aluminum, or a mixture of said two catalysts; •a step of polymerizing said monomers to form the polyester; •a step of recovering a polyester composition comprising the polyester and the catalytic system.

Abstract: The invention relates to a thermoplastic polymer comprising at least one 1,4:3,6-dianhydrohexitol unit (A), at least one alicyclic diol unit (B) other than the 1,4:3,6-dianhydrohexitol units (A) and at least one high-viscosity terephthalic acid unit (C).

Abstract: The invention concerns a method for producing a polyester containing at least one 1,4:3,6-dianhydrohexitol unit comprising:·a step of introducing, into a reactor, monomers comprising at least one monomer (A) that is a diacid or a diester and at least one monomer (B) that is a 1,4:3,6-dianhydrohexitol;·a step of introducing, into the reactor, a catalytic system comprising either a catalyst comprising the element germanium and a catalyst comprising the element aluminum, or a catalyst comprising the elements germanium and aluminum, or a mixture of said two catalysts;·a step of polymerising said monomers to form the polyester;·a step of recovering a polyester composition comprising the polyester and the catalytic system.

Abstract: The invention relates to a method for producing a polyurethane prepolymer with an isocyanate termination, having a low content of free diisocyanates. The invention also relates to a method for producing polyurethanes, polyurethane urea or thermoplastic polyurethane granules.

Abstract: The present invention relates to PBS- and silica-based composites, said composites having a high swelling ability. It also relates to a method of preparing said composites, a method of swelling said composites and films obtained by swelling said composites.

Abstract: The present invention relates to copolymers, in particular poly(butylenesuccinate-co-furanoate) (PBSF) copolymers, which have advantageous mechanical properties, and also to polymeric compositions comprising them. It also relates to a process for preparing these polymers.

Abstract: The present invention relates to copolymers, in particular poly(butylenesuccinate-co-furanoate) (PBSF) copolymers, which have advantageous mechanical properties, and also to polymeric compositions comprising them. It also relates to a process for preparing these polymers.

Abstract: The present invention relates to PBS- and silica-based composites, said composites having a high swelling ability. It also relates to a method of preparing said composites, a method of swelling said composites and films obtained by swelling said composites.

Abstract: The invention relates to an electrical conductor coated in an insulating layer itself coated in a bonding layer, the conductor being characterized in that said bonding layer is obtained from a composition comprising a thermoplastics polymer and a settable resin. The invention also applies to a method of manufacturing such an electrical conductor coated in a bonding layer, the method being characterized in that it comprises applying said composition on said electrical conductor coated in said insulating layer, and applying treatment to cause said settable resin to be cured at least in part.

Abstract: The invention relates to a polymerisable liquid mixture comprising: (a) a polymerisable thermosetting composition which is a precursor by polymerization of a first thermoset polymer material, said composition containing at least one polythiol and/or one polyol, preferably a polythiol, and at least one polyiso(thio)cyanate; and (b) a second polymer material solubilized in the aforementioned polymerisable thermosetting composition, whereby the second material (i) contains at least one block copolymer comprising at least two polymer blocks A and B, namely an elastomer block A and a hydrophilic block B, and, following polymerization of the polymerisable mixture, (ii) forms domains which are rich in elastomer block A and which are dispersed throughout the first material, said domains being smaller than 80 nanometers and preferably smaller than 50 nanometers.

Abstract: A method of preparation for a layer of material for use with a power and/or telecommunications cable includes mixing a composition including a thermoplastic polymer matrix and a phenolic resin. The phenolic resin is selected from the group consisting of novolac phenol-formaldehyde resins and novolac cyanate ester resins. The phenolic resin is hardened within the thermoplastic polymer matrix to obtain nodules of hardened phenolic resin dispersed throughout the material.

Abstract: The object of the invention is a process for molding an optical element such as a lens (2). According to the invention, the element is obtained by a reaction injection molding process comprising the steps of mixing at least two polymerizing reactants and forcing the obtained reacting mixture by an injection duct (5) for filling under pressure a scaled mold cavity (4) having an entry side (43) provided with a casting opening (42) and an evacuation side (44) and providing a laminated flow of mixture in a spout (6) having a progressive enlarging transversal section between the outlet opening (52) of the injection duct (5) and the casting opening (42) of the mold cavity (4), for avoiding any turbulent area in said laminated flow, said evacuation side (44) being provided with means (45) for evacuating air contained in the mixture during mold filling. The invention also covers the molding installation adapted for using such a process.