Trivalent antimony catalyst

Details Trivalent antimony catalyst Trivalent antimony catalyst

1975-02-03

1976-01-27

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08G 6314

Patent

active

039351700

ABSTRACT:
A novel antimony catalyst for polyester condensation reactions is described comprising trivalent antimony having its valences occupied by dianion radicals of 1,2-diols and anion radicals or organic carboxylic acids. The molar ratio of antimony to dianion radical of 1,2-diol to anion radical of organic carboxylic acid is 1:1:1. The antimony compound is prepared by reacting a mixture of a 1,2-diol and a trivalent antimony reactant represented by the formula; ##EQU1## wherein Sb is antimony, R.sub.1 is an anion radical of an organic carboxylic acid; and R.sub.2 is selected from the group consisting of anions of alcohols, anions of organic carboxylic acids and mixtures thereof.

REFERENCES:
patent: 3484410 (1969-12-01), Lazarus

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