Abstract: A process for manufacturing a cross-linked product has improved charring and thermal stability properties in which there is cross-linking of a benzoxazine monomer.

Abstract: A process for manufacturing a polybenzoxazine monomer, crosslinking the latter, and using the crosslinked product to form an ablative thermal protection system for a thruster nozzle or atmospheric reentry body.

Abstract: A process for manufacturing a polybenzoxazine monomer, crosslinking the latter, and using the crosslinked product to form an ablative thermal protection system for a thruster nozzle or atmospheric reentry body.

Abstract: A process for manufacturing a cross-linked product has improved charring and thermal stability properties in which there is cross-linking of a benzoxazine monomer.

Abstract: Disclosed is a biosourced polymer obtained by dual chemical functionalization of chitosan, usable for catalytic carbonation of cyclic ethers by carbon dioxide, and a binder composition for creating layers and/or coatings for road construction and/or civil engineering, marking materials, or sealing or insulation materials. The composition contains a polyhydroxyurethane polymer binder resulting from the reaction of at least one polyamine with at least one polycyclocarbonate. The polycyclocarbonate was obtained by carbonating a (cyclic) poly(ether) with carbon dioxide catalyzed by the biosourced polymer.

Abstract: The invention relates to copolymers comprising: at least one recurrent unit of the following formula (I): at least one recurrent unit of the following formula (II): and at least one recurrent unit of the following formula (III): wherein: R1 and R2 represent, independently of each other, an alkylene group; Z1 is a group of formula —PO3R3R4, R3 and R4 representing, independently of each other, a hydrogen atom, an alkyl group or a cation; Z2 is a group of formula —SO2R5, R5 representing an alkyl group or an aryl group; X and Y represent, independently of each other, a halogen atom or a perfluorocarbon group.

Abstract: The invention relates to a biosourced polymer obtained by dual chemical functionalization of chitosan, usable for catalytic carbonation of cyclic ethers by means of carbon dioxide, and a binder composition for creating layers and/or coatings for road construction and/or civil engineering, marking materials, or sealing or insulation materials. Said composition contains a polyhydroxyurethane polymer binder resulting from the reaction of at least one polyamine with at least one polycyclocarbonate. Said polycyclocarbonate was obtained by carbonating a (cyclic) poly(ether) with carbon dioxide catalyzed by said biosourced polymer.

Abstract: The invention relates to copolymers comprising a chain of siloxane repeat units of at least two different types, a first type of siloxane repeat unit comprising at least one —OH group on the silicon atom of the siloxane repeat unit and a second type of repeat unit comprising at least one pendant chain on the silicon atom of said repeat unit, this pendant chain consisting of a polymer chain comprising a chain of repeat units carrying at least one group of formula —PO3R1R2 wherein R1 and R2 independently represent a hydrogen atom, an alkyl group or a cation.

Abstract: The invention relates to copolymers comprising: at least one recurrent unit of the following formula (I): at least one recurrent unit of the following formula (II): and at least one recurrent unit of the following formula (III): wherein: R1 and R2 represent, independently of each other, an alkylene group; Z1 is a group of formula —PO3R3R4, R3 and R4 representing, independently of each other, a hydrogen atom, an alkyl group or a cation; Z2 is a group of formula —SO2R5, R5 representing an alkyl group or an aryl group; X and Y represent, independently of each other, a halogen atom or a perfluorocarbon group.

Abstract: Copolymers comprising at least one recurrent unit of the following formula (I) are provided: and at least one recurrent unit of the following formula (II): wherein: R1 is an alkylene group; Z is a —PO3R3R4, R3 and R4 representing independently of each other, a hydrogen atom an alkyl group, a cation; X and Y represent, independently of each other, a halogen atom, a perfluorocarbon group.

Abstract: A method for preparing a formaldehyde-free phenolic plastic resin, includes a step of preparing a hardener via careful oxidation of a polyol and a step of reacting the hardener with phenolic compounds.

Abstract: The invention relates to copolymers comprising a chain of siloxane repeat units of at least two different types, a first type of siloxane repeat unit comprising at least one —OH group on the silicon atom of the siloxane repeat unit and a second type of repeat unit comprising at least one pendant chain on the silicon atom of said repeat unit, this pendant chain consisting of a polymer chain comprising a chain of repeat units carrying at least one group of formula —PO3R1R2 wherein R1 and R2 independently represent a hydrogen atom, an alkyl group or a cation.

Abstract: A method for preparing a formaldehyde-free phenolic plastic resin, includes a step of preparing a hardener via careful oxidation of a polyol and a step of reacting the hardener with phenolic compounds.

Abstract: Copolymers comprising at least one recurrent unit of the following formula (I) are provided: and at least one recurrent unit of the following formula (II): wherein: R1 is an alkylene group; Z is a —PO3R3R4, R3 and R4 representing independently of each other, a hydrogen atom an alkyl group, a cation; X and Y represent, independently of each other, a halogen atom, a perfluorocarbon group.