PROCESS OF MANUFACTURING POLYOLS
    12.
    发明申请

    公开(公告)号:WO2019055731A1

    公开(公告)日:2019-03-21

    申请号:PCT/US2018/050991

    申请日:2018-09-14

    Abstract: A method of producing a polyether polyol that includes reacting a low molecular weight initiator with ethylene oxide 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, 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 R 3 each includes a same fluoroalkyl-substituted phenyl group, and optional R 4 includes a functional group or functional polymer group. R 1 , R 2 , and R 3 are the same fluoroalkyl-substituted phenyl 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.

    PROCESS OF MANUFACTURING POLYOLS
    20.
    发明申请

    公开(公告)号:WO2019055734A1

    公开(公告)日:2019-03-21

    申请号:PCT/US2018/050995

    申请日:2018-09-14

    Abstract: A method of producing a polyether polyol includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, and the low molecular weight initiator has a nominal hydroxyl functionality at least 2. 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 .

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