12223A3B34563456The present invention relates to the field of polymerisation catalysts and systems comprising said 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 M and M are independently selected from Zn(l...

12The 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): (Formula (I)) wherein at least one of M or M is selected from Ni(...

The present invention relates to a method for preparing a polycarbonate ether polyol by reacting an epoxide and carbon dioxide in the presence of a catalyst of formula (I) a double metal cyanide (DMC) catalyst and a starter compound. The catalyst of formula (I) is as follows:

A process for preparing a tetra-substituted aminobiphenol macrocyclic ligand having the structure (I), comprising the step of treating a precursor compound having the structure (II) with a compound having the structure R6-L where L represents a leaving group (hereinafter compound (III)) in the presence of a base; wh...

The present invention relates to a method for preparing a high molecular weight polyether carbonate, by reacting an epoxide and carbon dioxide in the presence of a catalyst of formula (I), and a double metal cyanide (DMC) catalyst. The catalyst of formula (I) has the following structure.

A method for quenching a polymerisation process is described. The reaction of carbon dioxide with an epoxide in the presence of a bimetallic metalcomplex catalyst to produce a polymer comprises the quenching step of deactivation of the catalyst by contacting the catalyst with an acid effective to deactivate the cata...

The present invention relates to a (poly)ol block copolymer of general structure B-A-(B)n, wherein block A is a polycarbonate block or polyester block, n=t-1 and t = the number of reactive end residues on block A, wherein block B is a polyethercarbonate block and wherein > 70% of the copolymer chain ends are termina...

The present invention relates to a process for producing a (poly)ol block copolymer comprising the reaction of a DMC catalyst with a polycarbonate or polyester (poly)ol (co)polymer and ethylene oxide, and optionally one or more other alkylene oxides, to produce a (poly)ol block copolymer wherein > 70% of the copolym...

A rigid foam comprising the reaction product of an (poly)isocyanate, and a polyethercarbonate polyol copolymer is described. The polyethercarbonate polyol copolymer is derived from the copolymerisation of one or more epoxides with CO2, wherein the total- CO2-content of the polyethercarbonate polyol copolymeris betwe...

A process for producing a polyol block copolymer in a multiple reactor system is described comprising a first and second reactor wherein a first reaction takes place in the first reactor and a second reaction takes place in the second reactor. The first reaction is the reaction of a carbonate catalyst with CO2 and e...

The present invention relates to a polyol block copolymer comprising a polycarbonate block, A (-A'-Z'-Z-(Z'-A')n-), and polyethercarbonate blocks, B. The polyol block copolymer has the polyblock structure: B-A'-Z'-Z-(Z'-A'-B)n wherein n= t-1 and wherein t= the number of terminal OH group residues on the block A; and...

The invention concerns a surface-active agent comprising a polycarbonate block polyether of the formula (I): Z1-(PC)P-(PE)Q-Z2 (I), wherein PC represents a carbonate block with P repeat units of formula (II), (II), wherein Re1, Re2, Re3, and Re4 are independently selected from H, methyl, ethyl, propyl, butyl, or an ...

The present invention relates to catalytic methods for preparing surfactant molecules, surfactant molecules obtainable by the method, compositions comprising the surfactant molecules, and to the use of surfactant molecules so prepared in cleaning products. The method comprises reacting carbon dioxide and an epoxide ...

The present invention relates to (poly)ol block copolymers having a polycarbonate or polyether carbonate, polyester and polyether or ethercarbonate blocks of structure C-B-A'-Z'-Z-(Z'-A'-B-C)n wherein n= t-1 and wherein t= the number of terminal OH group residues on the block A; and wherein each A' is independently ...

The invention concerns a surface-active agent comprising a polycarbonate block polyether of formula (I): A-((PC)P-(PE)Q-Z)X wherein: A is derived from a polyfunctional starter compound; PC represents a carbonate block with P repeat units of formula (II), wherein: Re1, Re2, Re3, and Re4 are all H; or one of Re1, Re2,...

The invention concerns an ionic surface-active agent comprising a polycarbonate or poly(carbonate ether) of the formula (I): A-((PC)P-(PE)Q-Z)X (I) wherein: A is derived from a functional starter compound; PC represents a carbonate block with P repeat units of formula (II); wherein: Re1, Re2, Re3, and Re4 are all H;...