Abstract: The method of preparing the polycarbonate ether polyol or high molecular weight polyether carbonate using controlled addition of materials during polymerisation includes the steps of: mixing catalyst of formula(I), double metal cyanide (DMC) catalyst and optionally carbon dioxide and/or solvent with epoxide and optionally starter compound and/or carbon dioxide; or mixing DMC catalyst and optionally starter compound, carbon dioxide and/or solvent with epoxide and optionally carbon dioxide and/or solvent; or mixing epoxide, catalyst of formula(I), starter compound and carbon dioxide and optionally solvent; or mixing catalyst of formula (I), DMC catalyst and optionally starter compound, epoxide, carbon dioxide and/or solvent to form in each case a mixture (?); and adding one or more of starter compound, epoxide, carbon dioxide, catalyst of formula(I), DMC catalyst and/or solvent to mixture (?) to form mixture (?) comprising starter compound, epoxide, carbon dioxide, catalyst of formula(I), DMC catalyst and optio

Abstract: The method of preparing the polycarbonate ether polyol or high molecular weight polyether carbonate using controlled addition of materials during polymerisation includes the steps of: mixing catalyst of formula(I), double metal cyanide (DMC) catalyst and optionally carbon dioxide and/or solvent with epoxide and optionally starter compound and/or carbon dioxide; or mixing DMC catalyst and optionally starter compound, carbon dioxide and/or solvent with epoxide and optionally carbon dioxide and/or solvent; or mixing epoxide, catalyst of formula(I), starter compound and carbon dioxide and optionally solvent; or mixing catalyst of formula (I), DMC catalyst and optionally starter compound, epoxide, carbon dioxide and/or solvent to form in each case a mixture (?); and adding one or more of starter compound, epoxide, carbon dioxide, catalyst of formula(I), DMC catalyst and/or solvent to mixture (?) to form mixture (?) comprising starter compound, epoxide, carbon dioxide, catalyst of formula(I), DMC catalyst and o

Abstract: The present invention relates to the field of polymerisation catalysts, and systems comprising these catalysts for polymerising carbon dioxide and an epoxide, a lactide and/or lactone, and/or an epoxide and an anhydride. The catalyst is of formula (I): wherein at least one of M1 or M2 is selected from Ni(II) and Ni(III)-X. A process for the reaction of carbon dioxide with an epoxide; an epoxide and an anhydride; and/or a lactide and/or a lactone in the presence of the catalyst is also described.

Abstract: The present invention relates to the field of polymerisation catalysts, and systems comprising these catalysts for polymerising carbon dioxide and an epoxide, a lactide and/or lactone, and/or an epoxide and an anhydride. The catalyst is of formula (I): wherein at least one of M1 or M2 is selected from Ni(II) and Ni(III)-X. A process for the reaction of carbon dioxide with an epoxide; an epoxide and an anhydride; and/or a lactide and/or a lactone in the presence of the catalyst is also described.

Abstract: The present invention relates to the field of polymerisation catalysts, and systems comprising these catalysts for polymerising carbon dioxide and an epoxide, a lactide and/or lactone, and/or an epoxide and an anhydride. The catalyst is of formula (I): wherein at least one of M1 or M2 is selected from Ni(II) and Ni(III)-X. A process for the reaction of carbon dioxide with an epoxide; an epoxide and an anhydride; and/or a lactide and/or a lactone in the presence of the catalyst is also described.