C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
260/486, 31/77,
C09K 15/12 (2006.01) C07D 327/04 (2006.01) C07F 9/90 (2006.01)
Patent
CA 1169087
ABSTRACT OF THE DISCLOSURE Antimony mercaptocarboxylic acid esters are provided having the formula: Image wherein: R1 is selected from the group consisting of hydrogen alkyl having from one to about eighteen carbon atoms and alkylene linked with R2 in a ring having from three to about eight carbon atoms; R2 is selected from the group consisting of alkyl having from one to about eighteen carbon atoms, phenyl, and alkylene linked with R1, in a ring having from three to about eight carbon atoms; R3 is selected from the group consisting of hydrogen and alkyl having from one to three carbon atoms; R4 is selected from the group consisting of alkyl, aryl, alkylaryl, alkoxycarbonyl-alkylene and acyloxyalkylene having from three to about twenty carbon atoms, the alkylene having from two to about six carbon atoms; R5 is selected from the group consisting of alkylene and cycloalkylene having from one to about eighteen carbon atoms, and such groups having from one to four hydroxyl groups; Z is a bivalent alkylene group having from one to five carbon atoms and carrying the sulfur in a position alpha or beta to -OOC-; and n is a number from 1 to 3. A process for preparing such antimony compounds is also provided, as well as predecessor intermediates, and stabilizer compo- sitions for polyvinyl chloride resin compositions comprising such antimony compounds, if desired with other polyvinyl chloride resin stabilizers.
359052
Mack Gerry
Gowling Lafleur Henderson Llp
Witco Chemical Canada Limited
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