癸二酸 、 氧化二辛基锡 在
dioctyltin sebacate 作用下,
以At the exit, dioctyltin sebacate (compound 7) is obtained as a white free-flowing powder的产率得到dioctyltin sebacate
参考文献:
名称:
Process for the preparation of diorganotin dicarboxylates
癸二酸 、 氧化二辛基锡 在
dioctyltin sebacate 作用下,
以At the exit, dioctyltin sebacate (compound 7) is obtained as a white free-flowing powder的产率得到dioctyltin sebacate
参考文献:
名称:
Process for the preparation of diorganotin dicarboxylates
Process for the preparation of diorganotin dicarboxylates
申请人:Ciba-Geigy Corporation
公开号:US05364954A1
公开(公告)日:1994-11-15
The invention relates to a process for the preparation of a pulverulent diorganotin dicarboxylate, which comprises reacting a diorganotin oxide of the formula I, ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are C.sub.1 -C.sub.8 alkyl, at a temperature in the range from 45.degree. C. to 70.degree. C. in the absence of solvents and adsorbents with a dicarboxylic acid of the formula II ##STR2## in which R.sup.3 is C.sub.1 -C.sub.18 alkylene, cycloalkylene having 5 to 7 carbon atoms, phenylene, C.sub.1 -C.sub.18 alkenylene or C.sub.1 -C.sub.8 alkylene substituted by 1 or 2 hydroxyl groups, or its anhydride, and subjecting the reaction mixture and the product during the reaction and the subsequent cooling phase to constant thorough mixing. The diorganotin dicarboxylates thus obtained are suitable for the stabilization of chlorine-containing polymers against the damaging effect of light, oxygen and/or heat.