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discussion of ketone aldehyde

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discussion of ketone aldehyde

Post  sonooo on Fri Jul 31, 2009 2:45 am

A [url=] ketone aldehyde [/url] resin having a water content of less than 0.4% by weight, obtained by condensing at least one ketone with at least one aldehyde in the presence of at least one alkali metal compound and at least one phase transfer catalyst in the absence of solvent or in a water-miscible organic solvent, wherein the aldehyde is added (1) in an initial charge at the beginning of the condensation; and (2) in at least one further substep following initiation of condensation in (1), wherein the ketone is selected from the group consisting of 4-tert-amylcyclohexanone, 2-sec-butylcyclohexanone, 2-tert-butylcyclohexanone, 4-tert-butylcyclohexanone, 2-methylcyclohexanone, 3,3,5-trimethylcyclohexanone, and mixtures thereof.


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