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公开(公告)号：US20220185956A1
公开(公告)日：2022-06-16
申请号：US16758179
申请日：2018-10-24
发明人： Michael Kember , David Muir , Anthony Chartoire , James Leeland , Fernando Valera , Andrew Carruthers , Rakibul Kabir
摘要： 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.
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公开(公告)号：US20210238149A1
公开(公告)日：2021-08-05
申请号：US17235142
申请日：2021-04-20
IPC分类号： C07D257/10 , C07D487/06
摘要： 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.
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公开(公告)号：US20200339732A1
公开(公告)日：2020-10-29
申请号：US16956313
申请日：2018-12-21
发明人： Michael Kember , Rakibul Kabir , Mark Andrews
摘要： A rigid foam including 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 copolymer is between 1 and 40 wt %, the carbonate linkages are
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4.发明申请公开(公告)号：US20190382357A1
公开(公告)日：2019-12-19
申请号：US16487939
申请日：2018-03-02
IPC分类号： C07D257/10 , C07D487/06
摘要： 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.
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公开(公告)号：US20190055352A1
公开(公告)日：2019-02-21
申请号：US16014079
申请日：2018-06-21
发明人： Colin Keyworth , Andy Chapman , Anthony Chartoire , Emmalina Hollis , Charlotte Williams , Michael Kember
IPC分类号： C08G64/34 , C07D487/08 , B01J31/18 , C07D257/02 , C08G63/82 , B01J31/22 , C07D285/00
摘要： 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.
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公开(公告)号：US20240336732A1
公开(公告)日：2024-10-10
申请号：US18294312
申请日：2022-08-11
发明人： James LEELAND , Michael Kember
CPC分类号： C08G64/34 , C08G64/0208 , C08G65/2603 , C08G65/2663 , C08G65/269 , C11D1/722
摘要： Catayltic 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 in the presence of a double metal cyanide (DMC) catalyst, a catalyst of formula (I), and a monofunctional starter compound,
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公开(公告)号：US20240067776A1
公开(公告)日：2024-02-29
申请号：US18375602
申请日：2023-10-02
发明人： Michael Kember , Carly Anderson , Emma Hollis
IPC分类号： C08G64/34
CPC分类号： C08G64/34
摘要： 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:
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公开(公告)号：US11912673B2
公开(公告)日：2024-02-27
申请号：US17235142
申请日：2021-04-20
IPC分类号： C07D257/10 , C07D487/06
CPC分类号： C07D257/10 , C07D487/06
摘要： 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.
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公开(公告)号：US20230147677A1
公开(公告)日：2023-05-11
申请号：US17802297
申请日：2021-03-02
发明人： Michael Kember
CPC分类号： C08G64/183 , C08G64/34 , C08G64/42 , C08G65/2609 , C08G65/2663 , C08L75/04 , C08G2650/58
摘要： A processfor 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 copolymer chain ends are terminated by primary hydroxyl groups, and the copolymers and products incorporating such copolymers.
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公开(公告)号：US20200062898A1
公开(公告)日：2020-02-27
申请号：US16488874
申请日：2018-03-01
发明人： Michael Kember , Rakibul Kabir , Anthea Blackburn
摘要： 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.
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