Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2005-12-27
2005-12-27
Richter, Johann R. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C560S217000, C560S156000, C560S172000
Reexamination Certificate
active
06979748
ABSTRACT:
A process for the preparation of aminoalkyl (meth)acrylates by transesterification from C1-C4-alkyl (meth)acrylates and aminoalcohols is described, in which process the transesterification is carried out in the presence of at least one distannoxane of the general formula (1)whereinR=linear, cyclic or branched alkyl radical having from 1 to 6 carbon atoms, phenyl radical, and the radicals R may be identical or different from one another,Y=halogen, preferably Cl, Br; pseudo-halogen, preferably SCN; OH, OAc or OR, the radicals Y being identical or different from one another,as catalyst, and the use of the aminoalkyl(meth)acrylates prepared according to the process in the preparation of cationic monomers.
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Eickwinkel Ralph
Hoppe Oliver
Houben Jochen
Kubiak Bernd
Kuester Erich
Puttlitz Karl
Richter Johann R.
Stockhausen GmbH & Co. KG
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