Formed organosiloxane-amine copolycondensates, process of...

C - Chemistry – Metallurgy – 08 – G

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C08G 77/22 (2006.01) B01D 53/02 (2006.01) B01J 20/22 (2006.01) C08G 77/54 (2006.01) C08G 77/58 (2006.01)

Patent

CA 2022385

The present invention relates to organosiloxane-amine copolycondensates crosslinked, when required, by means of Si-,Ti-,Zr-and/or Al-containing crosslinking agents and comprising units (see fig.I) and X - R4 wherein R1 - R4 = R5 - (see fig.II) wherein R5 represents alkylene directly linked to N and R respectively and containing C1 - C10, cycloalkylene with C5 - C10 or (see fig.III) and (see fig,IV) X = -NH2, -NH-(CH2)2-NH2. -N(CH3)2, -N(C2H5)2 -NH-(CH2)2-NH-(CH2)2-NH2, -Cl, -Br, -J, -SH, -P(C6H5)2, (see fig.V), (see fig.VI), (see fig.VII) (see fig.VIII), (see fig.IX) wherein R" represents H or alkyl with C1 - C5, in the form of globular particles having a diameter of 0.1 to 3mm, a specific surface area of 0 to 1000 m2/g, a specific pore volume of 0 to 6.0 ml/g and a powder density of 50 to 1000 g/litre. The present invention also relates to several processes of producing the formed copolycondensates of various specific compositions for the removal of metals from solutions and for the adsorption of gaseous organic compounds and/or of water vapour.

La présente invention porte sur des copolycondensats d'organosiloxane-amine réticulés, au besoin, à l'aide d'agents de réticulation contenant Si, Ti, Zr et/ou Al et comprenant des unités (voir fig.I) et X - R4 où R1 - R4 = R5 - (voir fig.II) où R5 représente un alcénylène en C1-C10 directement lié à N et R respectivement, un cycloalcénylène en C5-C10 ou (voir fig.III) et (voir fig.IV) X = -NH2, -NH-(CH2)2-NH2. -N(CH3)2, -N(C2H5)2 -NH-(CH2)2-NH-(CH2)2-NH2, -Cl, -Br, -J, -SH, -P(C6H5)2, (voir fig.V), (voir fig.VI), (voir fig.VII) (voir fig.VIII), (voir fig.IX) où R" représente H ou un alkyle en C1-C5, sous forme de particules sphériques d'un diamètre de 0,1 à 3 mm, une superficie de 0 à 1 000 m2/g, un volume poreux de 0 à 6,0 ml/g et une masse volumique apparente de 50 à 1 000 g/litre. La présente invention concerne également plusieurs procédés de production de copolycondensats de diverses compositions spécifiques pour l'élimination des métaux dans les solutions et pour l'adsorption des composés organiques gazeux et/ou de la vapeur d'eau.

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