C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 7/10 (2006.01) C01B 15/013 (2006.01) C07D 259/00 (2006.01) C07F 7/18 (2006.01) C08G 77/26 (2006.01)
Patent
CA 2314315
Novel silica gel incorporating polyazacycloalkane units comprising more than six nitrogen atoms, preparation process and use Compound of formula (I): (see formula I) in which W1, W2 and W3, which are identical or different, each represent, independently of one another, a divalent radical chosen from those represented by the general formula (A): -[(CT5T6)a-(CT1T2)n-[N(R4)]p-(CT3T4)m- (CT7T8)b]l- (A) as defined in the description and in which R4 represents a hydrogen atom, an alkyl radical, a [(hetero)aryl] alkyl radical or a radical represented by the general formula (B), R5-Si(X1)(X2)(X3), as defined in the description, and R1, R2 and R3, which are identical or different, each represent, independently of one another and of R4, a hydrogen atom, an alkyl radical, a [(hetero)aryl]alkyl radical comprising from 7 to 12 carbon atoms or a radical represented by the general formula (B), it being understood that the compound of formula (I) comprises more than six cyclic nitrogen atoms. Preparation process; use in the synthesis of polysiloxane gels; use of the said gels in purifying oxygen or extracting oxygen from the air and in purifying liquids.
Nouveau gel de silice comportant des unités de polyazacycloalkane comptant plus de six atomes d'azote, procédé de préparation et utilisation du composé de formule (I) : (voir la formule I) où W1, W2 et W3, qui sont identiques ou différents, sont, indépendamment l'un de l'autre, un radical divalent choisi parmi ceux de formule générale (A) : -¬(CT5T6)a-(CT1T2)n-¬N(R4)|p-(CT3T4)m- (CT7T8)b|l- (A), telle que définie dans la description, où R4 est un atome d'hydrogène, un radical alkyle, un ¬(hétéro)aryle|alkyle ou un radical de formule générale (B), R5-Si(X1)(X2)(X3), telle que définie dans la description, et R1, R2 et R3, qui sont identiques ou différents, représentent chacun, indépendamment l'un de l'autre et de R4, un atome d'hydrogène, un radical alkyle, un ¬(hétéro)aryl|alkyle comptant 7 à 12 atomes de carbone ou un radical de formule générale (B), sachant que le composé de formule (I) compte plus de six atomes d'azote dans des cycles. Procédé de préparation, utilisation dans la synthèse de gels de polysiloxane; utilisation de ces gels dans la purification de l'oxygène et dans l'extraction de l'oxygène de l'air ainsi que dans la purification des liquides.
Denat Frank
Dubois Geraud
Guilard Roger
Roux-Fouillet Bruno
Tripier Raphael
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Geo
L'air Liquide Societe Anonyme A. Directoire Et Conseil de Survei
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
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