Synthetic hydrotalcites, syntheses and uses

Details Synthetic hydrotalcites, syntheses and uses Synthetic hydrotalcites, syntheses and uses

C - Chemistry, Metallurgy

07

F

C07F 5/06 (2006.01) C01F 7/00 (2006.01) C07C 229/08 (2006.01) C08K 3/26 (2006.01) C08K 5/17 (2006.01) C08L 23/02 (2006.01) C08L 23/06 (2006.01) C08L 25/04 (2006.01) C08L 27/06 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2471032

Synthetic hydrotalcites of the general formula [M2+1-xM3+x(OH) 21 x+ [An x/n. 11H20]x where M2+ is a divalent cation, M3+ is a trivalent cation and A~- is an organic anion selected from straight chain carboxylates of C16-CI8 acids, carboxylates of aromatic acids, carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid, unsaturated carboxylates of vinylacetic acid and C2 and higher organic acids containing heteroatoms such as nitrogen, phosphorous, sulfur and halogens are disclosed, along with methods of synthesis and uses.

L'invention concerne des hydrotalcites synthétiques de formule générale [M2+1-xM3+x(OH) 21 x+ [An x/n. 11H20]x, dans laquelle M2+ désigne un cation divalent, M3+ désigne un cation trivalent et An- désigne un anion organique sélectionné dans des carboxylates à chaîne droite d'acides C16-C18, des carboxylates d'acides aromatiques, des carboxylates d'acide acrylique, des carboxylates insaturés d'acide métacrylique, des carboxylates insaturés d'acide vinylacétique et des acides organiques C2 et plus contenant des hétéroatomes, dont l'azote, le phosphore, le soufre et les halogènes. L'invention concerne également des procédés de synthèses et d'applications.

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