C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/85 (2006.01) C07C 67/08 (2006.01) C08G 63/82 (2006.01) B01J 23/14 (2006.01) C08G 63/87 (2006.01)
Patent
CA 2498856
The present invention relates to a catalytic composition for esterification, transesterification and polycondensation reactions of dicarboxylic acids, polycarboxylic acids and/or hydroxy carboxylic acids and alcohols, the catalytic composition containing a tin compound of general formula (I): [(R1Sn)l(OH)m-n(OR2)n O o]p+ A q- p/q (formula I) wherein: R1 and R2 each independently is a linear, branched or cyclic alkyl group or aryl group having 1 to 12 carbon atoms, A q- is an anion, which is O2-, a linear, branched or cyclic alkyl carboxy group, or an aryl carboxy group each having 1 to 12 carbon atoms, the anion of a mineral acid or metalate, a titanate, zirconate, or zincate anion l = 12, m = 6, n = 0 to 6, o = 14, p = 2 and q = 2. The invention also relates to a process for the catalysis of said reactions employing such catalytic compositions and polyesters for resins obtainable by this process.
La présente invention se rapporte à des compositions catalytiques destinées à des réactions d'estérification, de transestérification et de polycondensation, à un procédé de catalyse desdites réactions faisant appel à de telles compositions catalytiques, et à des polyesters ou à des résines pouvant être obtenues à l'aide dudit procédé.
Canisius Johannes
Franke Liane
Kapries Andrea
Roder Jens
Schumacher Oliver
Chemtura Organometallics Gmbh
Crompton Gmbh
Fetherstonhaugh & Co.
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