Preparation of stabilized polymerization catalysts and their use

Claim 1

THE METHOD FOR MAKING A POLYETHER WHICH COMPRISES POLYMERIZING (D) A POLYMERIZABLE ORGANIC CYCLIC OXIDE HAVING A RING OF FROM TWO TO THREE CARBON ATOMS AND ONE OXYGEN ATOM IN CONTACT WITH, AS A CATALYST FOR THE POLYMERIZATION OF SAID OXIDE, THE REACTION PRODUCT OF THE COMPLEX REACTION PRODUCT OF (A) AT LEAST ONE COMPOUND OF THE FORMULA MR2 IN WHICH M IS SELECTED FROM THE GROU CONSISTNG OF ZINC AND CADMIUM AND EACH R IS A MONOVALENT HYDROCARBON RADICAL, AND (B) AN ORGANIC COMPOUND FREE OF ACTIVE HYDROGEN AND CONTAINING AT LEAST ONE ATOM SELECTED FROM THE GROUP CONSISTING OF TERTIARY NITROGEN ATOMS, ETHEREAL OXYGEN ATOMS AND THIOETHEREAL SULFUR ATOMS WITH (C) A COMPOUND OF THE FORMULA R''"ZH IN WHICH R''" IS A SUBSTITUENT SELECTED FROM THE GROU CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND THE HYDROGEN ATOM AND Z IS A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF THE OXYGEN ATOM AND THE SULFUR ATOM, WHERE THE MOLAR RATIO OF A TO B IS SUCH THAT FOR EACH MOLECULE OF A THERE IS SUFFICIENT AMOUNT OF B TO SUPPLY AT LEAST TWO ATOMS OF THE AFOREMENTIONED CLASS OF TERTIARY NITROGEN ATOMS, ETHEREAL OXYGEN ATOMS, AND THIOETHEREAL SULFUR ATOMS, WHERE THE MOLAR RATIO OF C TO A IS FROM ABOUT 0.05 TO ABOUT 1.5, AND WHERE THE RATIO OF D TO A AND C IS FROM ABOUT 10 TO 10,000 MOLS OF D PER MOL OF A AND C TOGETHER.