-
公开(公告)号：US20220226800A1
公开(公告)日：2022-07-21
申请号：US17574830
申请日：2022-01-13
摘要： This application relates to methods and systems for drying polyol starters, as well as reaction mixtures including such polyol starters, and the preparation of polymers derived from such polyol starters. In some embodiments, the present invention encompasses methods of drying a polyol initiator compound, the method including the step of contacting a composition comprising a polyol initiator compound with one or more molecular sieves.
-
公开(公告)号：US20220220252A1
公开(公告)日：2022-07-14
申请号：US17573108
申请日：2022-01-11
发明人： Mohammad S. Alroaithi , Hussain M. Yami , Ola Ali , Wei Xu
摘要： A method of continuously producing a polyol includes: (i) feeding a solid catalyst into a continuous stirred tank reactor (CSTR); (ii) contacting a reaction mixture comprising one or more epoxides and carbon dioxide with the solid catalyst and a chain transfer agent comprising a plurality of sites capable of initiating copolymerization of epoxides and carbon dioxide in the CSTR; (iii) allowing polymerization reaction to proceed until a desired molecular weight polyol has formed; and (iv) terminating the polymerization reaction.
-
公开(公告)号：US11919998B2
公开(公告)日：2024-03-05
申请号：US17575755
申请日：2022-01-14
CPC分类号： C08G64/0208 , C08G64/323 , C08G64/34 , C08K3/346 , C08K9/04 , C08L69/00 , C08K2201/011
摘要： In one aspect, the present disclosure encompasses a nanocomposite composition comprising a polycarbonate polyol and a nanofiller, wherein the polycarbonate polyol comprises: (a) a polycarbonate polyol derived from copolymerization of CO2 and one or more epoxides; and/or (b) an aliphatic polycarbonate polyol. In a second aspect, the present disclosure encompasses a method for preparing the nanocomposite composition. In a third aspect, the present disclosure encompasses a method of improving a performance property of a polycarbonate polyol, the method comprising the step of forming the nanocomposite composition.
-
公开(公告)号：US20220227924A1
公开(公告)日：2022-07-21
申请号：US17575755
申请日：2022-01-14
摘要： In one aspect, the present disclosure encompasses a nanocomposite composition comprising a polycarbonate polyol and a nanofiller, wherein the polycarbonate polyol comprises: (a) a polycarbonate polyol derived from copolymerization of CO2 and one or more epoxides; and/or (b) an aliphatic polycarbonate polyol. In a second aspect, the present disclosure encompasses a method for preparing the nanocomposite composition. In a third aspect, the present disclosure encompasses a method of improving a performance property of a polycarbonate polyol, the method comprising the step of forming the nanocomposite composition.
-
-
-
搜索结果
4 条记录 (耗时 0.015 秒)
