Econic Technologies Limited

Imperial Innovations Limited

Ip2ipo Innovations Limited

Michael Kember

Charlotte Katherine Williams

Anthony Chartoire

James Leeland

Rakibul Kabir

Anthea Blackburn

Samuel Drane

Andy Chapman

Emmalina Hollis

Paul Knight

Colin Keyworth

Charles Romain

Kerry Riley

Andrew Carruthers

Emma Hollis

Carly Anderson

David Muir

Fernando Valera

Fabian Jutz

Antoine Buchard

Louis Adriaenssens

Mark Andrews

Charlotte Williams

Louis Adriaennsens

Charlotte K Williams

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

Process for the production of tetraaminobiphenol macrocyclic ligands; and novel tetraaminobiphenol macrocyclic ligands

A process for producing a polyol block copolymer in a multiple reactor system including a first and second reactor in which 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 COand epoxide, in the presence of starter and/or solvent to produce polycarbonate polyol copolymer and the second reaction is the reaction of DMC catalyst with the polycarbonate polyol compound of the first reaction and epoxide to produce polyol block copolymer. The product of the first reaction is fed into the second as crude reaction mixture, the epoxide and the polycarbonate polyol compound of the first reaction are fed in a continuous or semi-batch manner, and/or the product of the first reaction has neutral or alkaline pH on addition to the second. The invention further relates to the copolymers and products incorporating such copolymers.

Polyol block copolymer, compositions and processes therefor

A polyol block copolymer comprising a polycarbonate block, A (-A'-Z′—Z—(Z′-A′)-), and polyethercarbonate blocks, B. The polyol block copolymer has the polyblock structure:B-A′-Z′—Z—(Z′-A′-B)wherein n=t−1 and wherein t=the number of terminal OH group residues on the block A; and wherein each A′ is independently a polycarbonate chain having at least 70% carbonate linkages, and wherein each B is independently a polyethercarbonate chain having 50-99% ether linkages and at least 1% carbonate linkages; and wherein Z′—Z—(Z′)is a starter residue. A process of producing a polyol block copolymer from a two step process carried out in two reactors, and products and compositions incorporating such copolymers.

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 (α); and adding one or more of starter compound, epoxide, carbon dioxide, catalyst of formula(I), DMC catalyst and/or solvent to mixture (α) to form mixture (β) comprising starter compound, epoxide, carbon dioxide, catalyst of formula(I), DMC catalyst and optionally solvent,

Methods for forming polycarbonate ether polyols and high molecular weight polyether carbonates

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:

Method for preparing polyether carbonates

A method for quenching a polymerisation process is described. The reaction of carbon dioxide with an epoxide in the presence of a bimetallic metal complex 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 catalyst. The deactivated catalyst may be removed from the polymer product by contacting the catalyst and polymer product with a solid phase and/or by precipitation; and the catalyst may also be optionally reactivated by contacting the deactivated catalyst with an anion. The acid may contain an anion effective to initiate the polymerisation process and effective to deactivate the catalyst and the molar ratio of acid to catalyst in the deactivation step may be less than or equal to 20:1 of the acid to catalyst mole ratio for the reaction.

Method for quenching a polymerisation process

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.

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 Mor Mis 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.

Catalysts

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: 

Method for preparing polyols

The present invention provides methods for producing block copolymers, either by the sequential addition of monomers, or using a 'one-pot' method. The invention also relates to novel methods for producing polyesters by ring opening lactides and/or lactones and by copolymerising anhydrides and epoxides.

Method and catalyst system for preparing polymers and block copolymers

The 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 Mand Mare independently selected from Zn(II), Cr(II), Co(II), Cu(II), Mn(II), Ni(II), Mg(II), Fe(II), Ti(II), V(II), Cr(III)-X, Co(III)-X, Ni(III)-X, Mn(III)-X, Fe(III)-X, Ca(II), Ge(II), Al(III)-X, Ti(III)-X, V(III)-X, Ge(IV)-(X)or Ti(IV)-(X). Ris different from R; and/or at least one occurrence of E, E, Eand Eis different to a remaining occurrence of E, E, Eand E. A ligand, a process of asymmetric N-substitution of a symmetrical ligand and a process for the reaction of: (i) carbon dioxide with an epoxide; (ii) an epoxide and an anhydride; and/or (iii) a lactide and/or a lactone, in the presence of a catalyst is also described.

The present invention provides a novel catalyst of formula (I): wherein M is selected from Zn(H), Co(II), Mn(II), Mg(II), Fe(II), Cr(III)&#x2014;X or Fe(III)&#x2014;X, and the use thereof in polymerizing carbon dioxide and an epoxide.

Bimetallic catalytic complexes for the polymerisation of carbon dioxide and an epoxide

The present invention provides methods for producing block copolymers, either by the sequential addition of monomers, or using a 'one-pot' method. The invention also relates to novel methods for producing polyesters by ring opening lactides and/or lactones and by copolymerizing anhydrides and epoxides.

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London, United Kingdom

Michael Kember