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公开(公告)号:HU0202600A2
公开(公告)日:2002-12-28
申请号:HU0202600
申请日:2000-09-05
Applicant: BASF AG
IPC: C08G18/48 , C08G65/26 , C08G101/00
Abstract: The invention relates to polyether alcohols that are produced by a ring-opening polymerization of ethylene oxide and at least one alkylene oxide with at least 3 carbon atoms in the molecule to H-functional starting substances. The inventive method is further characterized in that ethylene oxide or a mixture of ethylene oxide and at least one alkylene oxide with at least 3 carbon atoms in the molecule with an ethylene oxide content of at least 98 %, based on the mixture, is added to the starting substance in an amount of maximally 40 % by weight, based on the weight of the polyether alcohol. At least one alkylene oxide with at least 3 carbon atoms in the molecule or a mixture of ethylene oxide and at least one alkylene oxide with at least 3 carbon atoms in the molecule and an ethylene oxide content of maximally 20 % by weight, based on the mixture, is added.
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公开(公告)号:HU0203076A2
公开(公告)日:2002-12-28
申请号:HU0203076
申请日:2000-10-02
Applicant: BASF AG
Inventor: BAUER , BAUM , DINSCH , GROSCH , HARRE , LORENZ , OSTROWSKI , PCOLINSKI , PRETZSCH , ROTERMUND , TISCHER
Abstract: Polyester-polyether block copolymers can be prepared by catalytic addition of alkylene oxides onto H-functional initiator substances, using polyester alcohols as H-functional initiator substances and multimetal cyanide compounds as catalysts.
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