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1.发明申请
公开(公告)号：WO2020068494A1
公开(公告)日：2020-04-02
申请号：PCT/US2019/051572
申请日：2019-09-17
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： PATANKAR, Kshitish A. , RAGHURAMAN, Arjun , WILLUMSTAD, Thomas P. , SONNENSCHEIN, Mark F. , HENNING, Jody , SPINNEY, Heather A. , WILSON, David R. , MUKHOPADHYAY, Sukrit
Abstract: Hydroxyl-containing copolymers of butylene oxide and ethylene oxide having a hydroxyl equivalent weight of at least 150, an average of 1.8 to 6 hydroxyl groups per molecule of which hydroxyl groups at least 70% are primary hydroxyl groups and an oxyethylene content of no greater than 10% by weight based on the weight of the copolymer, are useful for making polyurethanes. These polyols are characterized by high reactivity and fast curing times. Polyurethanes made using these polyols have excellent mechanical properties and are highly hydrophobic.
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公开(公告)号：WO2020068493A1
公开(公告)日：2020-04-02
申请号：PCT/US2019/051571
申请日：2019-09-17
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： PATANKAR, Kshitish A. , RAGHURAMAN, Arjun , WILLUMSTAD, Thomas P. , SONNENSCHEIN, Mark F. , HENNING, Jody , SPINNEY, Heather A. , WILSON, David R. , MUKHOPADHYAY, Sukrit , HEATH, William H.
Abstract: Polyurethanes are made in a one-shot process from one or more polyols having a hydroxyl equivalent weight of at least 350, wherein at least 50% of the weight of iii) is a hydroxyl-containing polymer of propylene oxide, the hydroxyl-containing polymer of propylene oxide having a hydroxyl equivalent weight of at least 350, an average of 1.8 to 3 hydroxyl groups per molecule of which hydroxyl groups 40 to 70% are primary hydroxyl groups, an oxyethylene content of no greater than 10% by weight based on the weight of the polymer and a polydispersity of 1.175 or less. The polyurethanes exhibit excellent mechanical properties, are highly hygroscopic and cured rapidly.
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3.发明公开
公开(公告)号：EP3856809A1
公开(公告)日：2021-08-04
申请号：EP19779683.2
申请日：2019-09-17
Applicant: Dow Global Technologies LLC
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公开(公告)号：EP3856811A1
公开(公告)日：2021-08-04
申请号：EP19780074.1
申请日：2019-09-17
Applicant: Dow Global Technologies LLC
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