Abstract: The present invention relates to a composition containing, besides a thermosetting resin of epoxy type and a hardener of anhydride type, at least one catalyst comprising an organometallic titanium complex. This composition enables the manufacture of vitrimer resins, that is to say resins that can be deformed in the thermoset state. It also relates to a kit for manufacturing this composition, an object obtained from this composition and a kit for manufacturing this object. Another subject of the invention relates to an organometallic titanium complex corresponding to the structure titanium bis(3-phenoxy-1,2-propane dioxide) (Ti(PPD)2), and the use thereof as vitrimer effect catalyst in systems based on epoxy resin and on hardener of anhydride type.

Abstract: A mixture may include at least one polymerizable species and at least one thermoresponsive supramolecular initiator complex involving a host-guest interaction. Processes for making resins may include mixing at least one polymerizable species with at least one thermoresponsive supramolecular initiator complex involving a host-guest interaction; subjecting the mixture to a temperature above about 30° C. thereby promoting the dissociation of the at least one thermoresponsive supramolecular initiator; and allowing the mixture to cure at the temperature for a period of time.

Abstract: The object of the invention is polymer compositions comprising cross-linked polymer comprising boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. The compositions are obtained from the modification of a polymer by a functionalised boronic ester additive. This polymer can be pre-functionalised boronic ester or functionalised on addition of the said additive. In particular, the invention relates to a process enabling the behaviour of a polymer to be modified by addition of a functional additive, enabling a cross-linked network containing exchangeable boronic ester links to be formed.

Abstract: The present invention relates to the preparation of a compound library comprising the following steps: i. Having available at least two different compounds each comprising at least a dioxaborolane or dioxaborinane ring. In said compounds: the boron of the dioxaborolane or dioxaborinane ring is directly linked to a carbon atom of a hydrocarbon radical; at least one carbon atom of the dioxaborolane or dioxaborinane ring is monosubstituted, the other carbon atoms of the dioxaborolane or dioxaborinane ring being non-substituted or monosubstituted; in at least two compounds, the hydrocarbon radicals linked to the boron are different; in at least two compounds, the substituents carried by at least one of the carbon atoms of the dioxaborolane or dioxaborinane rings are different and/or the size of the boronic ester ring is different; ii. Reacting the compounds of step (i.) and forming, by a boronic ester metathesis reaction, the library comprising at least four different compounds.

Abstract: The object of the invention is a polymer composition including cross-linked polymers, which contain boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. This composition originates from the polymerization of precursor monomers to thermoplastic polymers including at least one pending boronic ester group, the pending boronic ester group not containing any polymerizable groups, and cross-linking agent comprising at least one boronic ester group. This enables the formation of a network of cross-linked polymers containing pending functions and cross-links that are exchangeable by boronic ester metathesis reactions. Another object of the invention is processes for preparing this composition and materials and formulations comprising this composition.

Abstract: The object of the invention is a polymer compositions comprising cross-linked polymer comprising boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. The compositions are obtained from the modification of a polymer by a functionalized boronic ester additive. This polymer can be pre-functionalized boronic ester or functionalized on addition of the said additive. In particular, the invention relates to a process enabling the behavior of a polymer to be modified by addition of a functional additive, enabling a cross-linked network containing exchangeable boronic ester links to be formed.

Abstract: The object of the invention is a composition comprising (a) cross-linked polymers containing pending links and cross-links that are exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions, obtained by cross-linking of linear or branched polymers; and (b) free monofunctional aldehydes and/or free monofunctional Another object of the invention is preparation processes of such a composition and the uses of the composition. Another object of the invention is compositions for cross-linking linear or branched polymers and their use to form a composition comprising cross-linked polymers containing pending links and cross-links that are exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions. Finally, an object of the invention is the use of aldehyde to catalyze imine-imine metathesis reactions and imine-aldehyde exchange reactions.

Abstract: The invention relates to a composition containing at least one catalyst (C1) containing at least one atom of an element (M1) chosen from: Al, Sc, Ti, Mg, Mn, Fe, Co, Ni, Cu, Zn, Zr, Sn, Hf, Pb, Si, Sb and In; a catalyst (C2) comprising at least one atom of an element (M2) chosen from alkali metals and alkaline-earth metals; a thermosetting resin and/or a hardener for a thermosetting resin. The invention also relates to the use of this composition for rendering a resin which is in the thermoset state hot-deformable and nevertheless free of any residual stress after the deformation thereof; such a resin will advantageously retain its shape even if it is subsequently subjected to high temperatures. The invention relates, moreover, to kits for preparing the composition, to a thermoset-resin-based object obtained from a composition of the invention, to a process for manufacturing objects, to a process for hot-deformation of objects and to various possible uses of the compositions and objects of the invention.

Abstract: The present invention is directed to an entity comprising a particle attached to at least one polymer M through one or several supramolecular interactions -A-B- constituted by 2 to 8 hydrogen bonds X-H-Y, wherein A and B are functional groups respectively grafted to P and M thus forming the particle-containing entity P-(A-B-M)x with x being greater than or equal to 1, functional group(s) B being positioned at one end of the polymeric chain of polymer M, X and Y are heteroatoms present in A and B functional groups, H is hydrogen, and M has a degree of polymerization comprised between 5 and 1000, preferably ranging from 5 to 500. The invention is also directed to a method for preparing this particle-containing entity P-(A-B-M)x, a method for sequentially forming and breaking the supramolecular interactions -A-B- in said particle-containing entity P-(A-B-M)x and dispersions comprising the same.

Abstract: The present invention relates to a composition comprising a polymeric network having at least one unit of formula (I), (II), and/or (III); (I) (II) (III) wherein said composition is obtained by contacting at least one compound A comprising at least two functions selected from the group of function of formula X—C(?O)—CHR1—C(?O)—R2, —C(?O)—C—R2; or —C(?O)—CR1?CR2—NR4R5; wherein at least 25% by weight of compounds A have a functionality ?5, with % by weight relative to the total weight of compounds A; with at least one compound B comprising at least one NH2, or NH3+ groups; wherein X, R1, R2, R3, R4, R5, L1 and L2 have the same meaning as that defined in the claims. The present invention also relates to a compound comprising at least two units and at most 5 units of formula (I), (II), and/or (III); wherein R1, R2, R3, X, L1 and L2 have the same meaning as that defined in the claims.

Abstract: The present invention is directed to a particle-containing entity P-(A--B-M)x wherein P is a solid particle attached to at least one polymer M through one or several reversible covalent bonds -A---B-, wherein A and B are functional groups respectively grafted to P and M thus forming the P-(A---B-M)x particle-containing entity with x being greater than or equal to 1, M has a degree of polymerization comprised between 5 and 1000, preferably ranging from 5 to 500, and wherein the reversible covalent bond -A---B- is chosen among an imine, a disulfide, a boronic ester or an acetal. The invention is also directed to a method of preparing this particle-containing entity, a method for sequentially forming and breaking the reversible covalent bond -A---B- in said particle-containing entity P-(A---B-M)x and dispersions comprising same.

Abstract: The present invention concerns an aqueous dispersion of multiphase polymer particles in which the polymer particles comprise at least two separate phases, the internal phase being formed by polymerization in the presence of a crosslinking agent, said dispersion further comprising a surfactant chosen from amino acid derivatives. The invention also concerns a film-forming composition comprising said aqueous dispersion of polymer particles. The invention also relates to a film obtained after application of said film-forming composition. This film dries very quickly, is water resistant, and has good adhesion, elasticity and breaking strength properties. The invention also concerns the use of said film for protecting surfaces of the skin or mucous membranes, wounds, injuries and/or skin disorders.

Abstract: The object of the invention is a polymer compositions comprising cross-linked polymer comprising boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. These compositions arise from the polymerisation of precursor monomers to thermoplastic polymers comprising at least one pending boronic ester group, said pending boronic ester group not containing any polymerisable group and cross-linking agent comprising at least one boronic ester group enabling the formation of a network of cross-linked polymer containing pending functions and cross-links that are exchangeable by boronic ester metathesis reactions. Another object of the invention are processes for preparing this composition and materials and formulations comprising this composition.

Abstract: The object of the invention is a composition comprising (a) cross-linked polymers containing pending links and cross-links that are exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions, obtained by cross-linking of linear or branched polymers; and (b) free monofunctional aldehydes and/or free monofunctional Another object of the invention is preparation processes of such a composition and the uses of the composition. Another object of the invention is compositions for cross-linking linear or branched polymers and their use to form a composition comprising cross-linked polymers containing pending links and cross-links that are exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions. Finally, an object of the invention is the use of aldehyde to catalyse imine-imine metathesis reactions and imine-aldehyde exchange reactions.

Abstract: The object of the invention is a composition comprising a network of cross-linked polymers.

Abstract: The present invention relates to the preparation of a compound library comprising the following steps: i. Having available at least two different compounds each comprising at least a dioxaborolane or dioxaborinane ring. In said compounds: the boron of the dioxaborolane or dioxaborinane ring is directly linked to a carbon atom of a hydrocarbon radical; at least one carbon atom of the dioxaborolane or dioxaborinane ring is monosubstituted, the other carbon atoms of the dioxaborolane or dioxaborinane ring being non-substituted or monosubstituted; in at least two compounds, the hydrocarbon radicals linked to the boron are different; in at least two compounds, the substituents carried by at least one of the carbon atoms of the dioxaborolane or dioxaborinane rings are different and/or the size of the boronic ester ring is different; ii. Reacting the compounds of step (i.) and forming, by a boronic ester metathesis reaction, the library comprising at least four different compounds.

Abstract: The object of the invention is a polymer compositions comprising cross-linked polymer comprising boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. The compositions are obtained from the modification of a polymer by a functionalised boronic ester additive. This polymer can be pre-functionalised boronic ester or functionalised on addition of the said additive. In particular, the invention relates to a process enabling the behaviour of a polymer to be modified by addition of a functional additive, enabling a cross-linked network containing exchangeable boronic ester links to be formed.

Abstract: The present invention relates to a composition containing, besides a thermosetting resin of epoxy type and a hardener of anhydride type, at least one catalyst comprising an organometallic titanium complex. This composition enables the manufacture of vitrimer resins, that is to say resins that can be deformed in the thermoset state. It also relates to a kit for manufacturing this composition, an object obtained from this composition and a kit for manufacturing this object. Another subject of the invention relates to an organometallic titanium complex corresponding to the structure titanium bis(3-phenoxy-1,2-propane dioxide) (Ti(PPD)2), and the use thereof as vitrimer effect catalyst in systems based on epoxy resin and on hardener of anhydride type.

Abstract: Thermosetting resins and thermosetting composites comprising the thermosetting resins are hot-formable. The compositions result from contacting at least one thermosetting resin precursor with at least one hardener selected from acid anhydrides in the presence of at least one transesterification catalyst. The thermosetting resin precursor includes hydroxyl functions and/or epoxy groups, and optionally ester functions, and the total molar quantity of the transesterification catalyst is between 5 and 25% of the total molar quantity of hydroxyl and epoxy contained in the thermosetting resin precursor. Methods for manufacturing articles comprising the thermosetting resins and methods for recycling the thermosetting resins are also disclosed.

Abstract: Use of a composition of nanoparticles for gluing at least one hydrogel to at least one other article. Gel assemblies of good mechanical resistance can be obtained easily. Method for gluing at least one hydrogel to at least one other article, said method comprises: applying a composition of nanoparticles on at least one face of the hydrogel and applying the face of the hydrogel with the nanoparticles to the article.