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    PROCESS OF MANUFACTURING POLYOLS
    21.
    发明申请
    PROCESS OF MANUFACTURING POLYOLS 审中-公开

    公开(公告)号：WO2019055727A1

    公开(公告)日：2019-03-21

    申请号：PCT/US2018/050987

    申请日：2018-09-14

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： RAGHURAMAN, Arjun ,  HEATH, William H. ,  MUKHOPADHYAY, Sukrit ,  SPINNEY, Heather A. ,  WILSON, David R. ,  GIES, Anthony P. ,  PARADKAR, Manjiri R.

    IPC: C08G65/26 ,  C08G18/48

    Abstract: A method of producing a polyether polyol includes reacting a low molecular weight initiator with one or more monomers in the presence of a polymerization catalyst, and the low molecular weight initiator has a nominal hydroxyl functionality of at least 2. The one or more monomers includes at least one selected from propylene oxide and butylene oxide. The polymerization catalyst is a Lewis acid catalyst having the general formula M(R 1 )1(R 2 )1(R 3 )1(R 4 )0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R 1 , R 2 , R 3 , and R 4 are each independent, R 1 includes a fluoroalkyl-substituted phenyl group, R 2 incudes a fluoroalkyl-substituted phenyl group or a fluoro/chloro-substituted phenyl group, R 3 includes a fluoroalkyl-substituted phenyl group or a fluoro/chloro-substituted phenyl group, and optional R 4 includes a functional group or functional polymer group, R 1 being different from at least one of R 2 and R 3 .

    PROCESS OF MANUFACTURING POLYOLS
    22.
    发明申请
    PROCESS OF MANUFACTURING POLYOLS 审中-公开

    公开(公告)号：WO2019055725A1

    公开(公告)日：2019-03-21

    申请号：PCT/US2018/050985

    申请日：2018-09-14

    Applicant: NORTHWESTERN UNIVERSITY ,  DOW GLOBAL TECHNOLOGIES LLC

    Inventor： RAGHURAMAN, Arjun ,  HEATH, William H. ,  MUKHOPADHYAY, Sukrit ,  SPINNEY, Heather A. ,  WILSON, David R. ,  GIES, Anthony P. ,  PARADKAR, Manjiri R. ,  NOTESTEIN, Justin M. ,  NGUYEN, SonBinh T.

    IPC: C08G65/26 ,  C08G18/48

    Abstract: A method of producing a polyether polyol that includes reacting a low molecular weight initiator with one or more monomers in the presence of a polymerization catalyst, the low molecular weight initiator having a number average molecular weight of less than 1,000 g/mol and a nominal hydroxyl functionality at least 2, the one or more monomers including at least one selected from propylene oxide and butylene oxide, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R 1 )1(R 2 )1(R 3 )1(R 4 )0 or 1. Whereas, M is boron, aluminum, indium, bismuth or erbium, R 1 , R 2 , and R3 each includes a same fluoroalkyl-substituted phenyl group, and optional R 4 includes a functional group or functional polymer group. The method further includes forming a polyether polyol having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.

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