公开(公告)号：EP4050053A1

公开(公告)日：2022-08-31

申请号：EP22158707.4

申请日：2022-02-25

申请人： Covestro LLC

发明人： LEWIS, Sharlene ,  LOVEDAY, Tony ,  REXRODE, Eric

IPC分类号： C08G18/02 ,  C08G18/18 ,  C08G18/22 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/76 ,  C08K5/00

摘要： The present disclosure describes isopropylidenediphenol-based polyether polyols, processes for their production, foams produced using such isopropylidenediphenol-based polyether polyols, such as PUR-PIR rigid foams, as well as to processes for producing such foams. The polyether polyols include: (a) an alkoxylate of 4,4'-isopropylidenediphenol; (b) an alkoxylate of 2,4'- and/or 2,2'-isopropylidenediphenol; (c) an alkoxylate of components comprising structural elements which are derived from phenol, acetone and/or isopropylidenediphenol, but which are not isomers of isopropylidenediphenol; and (d) an alkoxylate of a diol that has a molecular weight less than the molecular weight of isopropylidenediphenol and that does not contain structural elements derived from phenol, acetone and/or isopropylidenediphenol.

公开(公告)号：EP3700960A1

公开(公告)日：2020-09-02

申请号：EP18807748.1

申请日：2018-10-19

申请人： Covestro LLC

发明人： LEWIS, Sharlene ,  UTHE, Peter ,  KOSHUT, William

IPC分类号： C08G64/18 ,  C08G64/34 ,  C08G64/40 ,  C08G65/26 ,  C08G65/30 ,  C08G64/02

公开(公告)号：EP4050052A1

公开(公告)日：2022-08-31

申请号：EP22158705.8

申请日：2022-02-25

申请人： Covestro LLC

发明人： LEWIS, Sharlene ,  LOVEDAY, Tony ,  REXRODE, Eric

IPC分类号： C08G18/02 ,  C08G18/18 ,  C08G18/22 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/76 ,  C08K5/00

摘要： The present disclosure describes isopropylidenediphenol-based polyether polyols, processes for their production, foams produced using such isopropylidenediphenol-based polyether polyols, such as PUR-PIR rigid foams, as well as to processes for producing such foams. The polyether polyols have an internal block comprising polymerized ethylene oxide moieties and an external cap comprising polymerized propylene oxide moieties.