PROCEDE DE PREPARATION DE SOLUTIONS AQUEUSES DE MONOMERES OLEFINIQUES EN VUE D'UNE PHOTOPOLYMERISATION

L'invention se situe dans le domaine de la préparation de solutions de monomères prêtes pour la photopolymérisation. Elle fait passer la solution dans une colonne à garnissage. Elle sert à la réalisation de floculants. Aq. solns. of olefinically unsatd. monomers for thin layer UV irradiation ar...

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Bibliographische Detailangaben
1. Verfasser:	JEAN BOUTIN, BERNARD GUENOT ET BRUNO JAMET
Format:	Patent
Sprache:	fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON GENERAL METHODS OF ORGANIC CHEMISTRY MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Zusammenfassung:	L'invention se situe dans le domaine de la préparation de solutions de monomères prêtes pour la photopolymérisation. Elle fait passer la solution dans une colonne à garnissage. Elle sert à la réalisation de floculants. Aq. solns. of olefinically unsatd. monomers for thin layer UV irradiation are prepd. by introducing an aq. soln. of the monomers at the top of a column, introducing a photoinitiator into the same column and introducing an inert gas at the bottom of the column, the gas circulating upwards and the liquid downwards. The inert gas exits at the top of the column and the aq. soln. ready for irradiation is removed at the bottom. The solns. are prepd. rapidly without the use of mechanical stirrers; they are well deoxygenated and have a constant pH. The process also reduces to the minimum the time of conversion between the storage stable aq. monomer soln. and the aq. soln. ready for polymerisation. The solns. are used to prepare organic polymers for use as flocculants.