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公开(公告)号：US11566145B2
公开(公告)日：2023-01-31
申请号：US16373929
申请日：2019-04-03
申请人： COVESTRO LLC
发明人： Anthony R. Loveday , Jack R. Reese , Rick L. Adkins , David P. Zielinski , James A. Thompson-Colón , Alan D. Bushmire , Liang Chen , Chen Xu
IPC分类号： C08G18/73 , C09D175/04 , C08G18/32 , B29C37/00 , B29C70/28 , C08J5/04 , C08J7/04 , B29K309/08
摘要： Polyurethane coating compositions are disclosed that include an isocyanate-reactive component that includes a polycyclic polyether polyol that is the reaction product of a reaction mixture that includes a polycyclic polyol starter, and an alkylene oxide, as well as an isocyanate-functional component that includes a non-aromatic polyisocyanate. The polyurethane coating compositions may be particularly useful as a gel coat in the manufacture of glass fiber reinforced plastics.
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公开(公告)号：US10633406B1
公开(公告)日：2020-04-28
申请号：US16191510
申请日：2018-11-15
申请人： COVESTRO LLC
IPC分类号： C07H15/08
摘要： Batch “water processes” for producing high functionality polyether polyols from polyhydroxyl compounds that are solid at ambient conditions, such as is the case with sucrose, are disclosed. The disclosed processes avoid use of an intermediate dewatering step.
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公开(公告)号：US20220267507A1
公开(公告)日：2022-08-25
申请号：US17625114
申请日：2020-06-24
申请人： Covestro LLC
摘要： Polyether polyols are described that are an alkoxylation reaction product of an H-functional starter and an alkylene oxide, in which the H-functional starter includes an amino diphenylamine. Methods for producing such polyether polyols, as well as to the use of such polyether polyols in the production of flexible polyurethane foams is also described.
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公开(公告)号：US10533067B2
公开(公告)日：2020-01-14
申请号：US16108818
申请日：2018-08-22
申请人： COVESTRO LLC
发明人： Anthony R. Loveday , Eloy C. Martinez , James L. Lambach , Richard Raul Romero , Usama E. Younes , Ray Joseph Anderson
IPC分类号： C08G18/48 , C08L71/02 , C08G65/26 , C08J9/00 , C08G18/76 , C08G18/08 , C08K5/521 , C08G18/32 , C08G18/66 , C08G18/50 , C08G101/00
摘要： Disclosed are compositions that comprise water and a polyether polyol derived from sucrose and an alkylene oxide, as well as polyurethane foam systems comprising such compositions, methods for their production, and the resulting polyurethane foams.
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公开(公告)号：US11629225B2
公开(公告)日：2023-04-18
申请号：US16883243
申请日：2020-05-26
摘要： Processes are described for producing an aromatic diamine-initiated polyether polyol having a measured OH number of 300 to 500 mg KOH/g and a viscosity at 25° C. of 5000 to 50,000 mPas. The processes include a first alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with a starter consisting essentially of aromatic diamine at a molar ratio of propylene oxide to aromatic diamine of 1.4:1 to 2.0:1 to form an alkoxylated product; and a second alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with the alkoxylated product, in the presence of an added catalyst, until the ratio of moles of propylene oxide added in the process to the moles of aromatic diamine added in the process is 4:1 to 9:1.
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公开(公告)号：US20220267511A1
公开(公告)日：2022-08-25
申请号：US17670707
申请日：2022-02-14
申请人： Covestro LLC
摘要： 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.
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公开(公告)号：US11161931B2
公开(公告)日：2021-11-02
申请号：US16296937
申请日：2019-03-08
申请人： COVESTRO LLC
摘要： Polyol blends are disclosed that include a saccharide-initiated polyether polyol, an aromatic polyester polyol, and a polyalkylene polyamine-initiated polyether polyol. Also disclosed are foam-forming compositions containing such polyol blends, rigid foams made using such polyurethane foam-forming compositions, and methods for producing such foams, including use of such foams as panel insulation.
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公开(公告)号：US10961347B2
公开(公告)日：2021-03-30
申请号：US16225549
申请日：2018-12-19
申请人： COVESTRO LLC
摘要： This invention relates to an improved process for the preparation of a high molecular weight polyoxyalkylene polyether polyol by the continuous addition of starter (CAOS) process. This process enables a shorter cycle time while maintaining a low viscosity in high molecular weight polyoxyalkylene polyether polyols.
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公开(公告)号：US10544158B1
公开(公告)日：2020-01-28
申请号：US16373885
申请日：2019-04-03
申请人： COVESTRO LLC
IPC分类号： C07D493/04 , C07C41/03 , B01J27/26 , C08G18/48
摘要： Processes are described for producing a polycyclic polyether polyol having a hydroxyl functionality of 1.5 to 6 and a number average molecular weight of 200 to 12,000 Da. The processes comprise alkoxylating a polyol starter comprising predominantly a polycyclic polyol with an alkylene oxide in the presence of a DMC catalyst.
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公开(公告)号：US20190177476A1
公开(公告)日：2019-06-13
申请号：US15834709
申请日：2017-12-07
申请人： Covestro LLC
发明人： Rick L. Adkins , Anthony R. Loveday
CPC分类号： C08G65/2621 , C08F290/067 , C08F290/142 , C08G18/227 , C08G18/5021 , C08G18/636 , C08G18/7621 , C08G18/8108 , C08G65/2624 , C08G65/33358 , C08G2101/0083 , C08J9/34 , C08J2205/06 , C08J2205/08 , C08K5/17 , C08L33/10 , C08L71/02 , C08L75/04 , C08F212/08 , C08F220/44
摘要： This invention relates to novel macromers prepared from amine based polyols, preformed stabilizers prepared from these macromers, and to polymer polyols prepared from the preformed stabilizers. The present invention also relates to processes for preparing these compositions.
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