METHOD FOR PREPARING A HALOGENATED POLYMER VIA DEHYDROHALOGENATION

• Main Author: EID, Nadim
• Format: Patent
• Language: English; French
• Published: 30.05.2024
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to a halogenated polymer A1 that comprises monomer units M1 comprising at least one fluorine atom, monomer units M2 comprising at least one carbon-carbon double bond -C(R1)=C(R2)-, and monomer units M3 comprising at least one conjugated carbon-carbon double bond -C(R3)=C(R4)-C(R5)=C(R6)-, wherein the groups R1, R2, R3, R4, R5 and R6 are selected, independently of one another, from the group consisting of H, C1-C5 alkyl, C1-C5 (per)haloalkyl, F, Br, I and Cl; characterized in that the molar ratio of the content of monomer units M2 in the polymer A1 to the content of monomer units M3 in the polymer A1 is less than 10; and the molar content of monomer units M2 is 0.01 to 15% and the molar content of monomer units M3 is 0.01 to 15% in the polymer A1. The present invention also relates to the method for preparing the halogenated polymer. La présente invention concerne un polymère halogéné A1 comprenant des unités monomériques M1 comprenant au moins un atome de fluor, des unités monomériques M2 comprenant au moins une double liaison carbone-carbone -C(R1)=C(R2)-, et des unités monomériques M3 comprenant au moins une double liaison carbone-carbone conjuguée -C(R3)=C(R4)-C(R5)=C(R6)-, dans lesquelles les groupements R1, R2, R3, R4, R5 et R6 sont indépendamment les uns des autres sélectionnés parmi le groupe consistant en H, C1-C5 alkyle, C1-C5 (per)halogénoalkyle, F, Br, I et Cl; caractérisé en ce que le ratio molaire entre la teneur en unités monomériques M2 dans ledit polymère A1 et la teneur en unités monomériques M3 dans ledit polymère A1 est inférieur à 10; et la teneur molaire en unités monomériques M2 est de 0,01 à 15% et la teneur molaire en unités monomériques M3 est de 0,01 à 15% dans ledit polymère A1. La présente invention concerne aussi le procédé de préparation dudit polymère halogéné.