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    Thermoplastic polyurethane
    15.
    发明授权
    Thermoplastic polyurethane 有权

    公开(公告)号：US11542361B2

    公开(公告)日：2023-01-03

    申请号：US16623651

    申请日：2018-06-26

    Applicant: BASF SE

    Inventor： Frank Schaefer ,  Elmar Poeselt ,  Sirus Zarbakhsh

    IPC: C08J5/18 ,  C08G18/76 ,  B29C48/00 ,  B29C48/08 ,  C08G18/22 ,  C08G18/24 ,  C08G18/42 ,  C08G18/66 ,  C08K3/34 ,  B29K75/00 ,  B29K101/12 ,  B29K105/00 ,  B29K105/16

    Abstract: The present invention relates to thermoplastic polyurethanes obtainable or obtained by reacting at least a polyisocyanate composition comprising at least one polyisocyanate, at least one chain extender, and at least one polyol composition, wherein the polyol composition comprises at least one polyester polyol (P1) which is obtainable by reacting an aliphatic dicarboxylic acid having 2 to 12 carbon atoms and a mixture (M1) comprising propane-1,3-diol and a further diol (D1) having 2 to 12 carbon atoms, preferably butane-1,4-diol. The present invention also relates to a preparation process for such thermoplastic polyurethanes and also to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for the production of extrusion products, films and shaped bodies or for the production of polymer compositions.

    MOISTURE-CURABLE POLYURETHANE HOTMELT ADHESIVE HAVING HIGH INITIAL STRENGTH
    16.
    发明申请
    MOISTURE-CURABLE POLYURETHANE HOTMELT ADHESIVE HAVING HIGH INITIAL STRENGTH 有权

    公开(公告)号：US20220403219A1

    公开(公告)日：2022-12-22

    申请号：US17776454

    申请日：2020-11-13

    Applicant: BASF SE

    Inventor： Sirus Zarbakhsh ,  Stefan Bokern ,  Martin Linnebrink ,  Xuyuan Peng-Poehler

    IPC: C09J175/08 ,  C09J5/06 ,  C08G18/76 ,  C08G18/12 ,  C08G18/42 ,  C08G18/48 ,  C08G18/62 ,  C08G18/40 ,  C08G18/30

    Abstract: Described herein is a moisture-curing polyurethane hot-melt adhesive including at least 80% by weight, based on a total weight of the moisture-curing polyurethane hot-melt adhesive, of isocyanate-terminated prepolymer obtainable by mixing diisocyanate (a) with compounds having at least two isocyanate-reactive groups (b) and reacting the mixture to form the isocyanate-terminated prepolymer, where the compounds having at least two isocyanate-reactive groups (b) include at least one polylactide (b1) obtainable by reacting lactide with a linear difunctional starter molecule having 2 to 20 carbon atoms and the isocyanate content of the isocyanate-terminated prepolymer is 1 to 5% by weight. Also described herein is a process for producing such a moisture-curing polyurethane hot-melt adhesive and a method of using the moisture-curing polyurethane hot-melt adhesive in bonding of substrates.

    COMPACT POLYURETHANE
    17.
    发明申请
    COMPACT POLYURETHANE 有权

    公开(公告)号：US20220064365A1

    公开(公告)日：2022-03-03

    申请号：US17416032

    申请日：2019-12-19

    Applicant: BASF SE

    Inventor： Andreas Emge ,  Andre Meyer ,  Sirus Zarbakhsh

    IPC: C08G18/76 ,  C08G18/48 ,  C08G18/79 ,  C08G18/32 ,  C08G18/65 ,  C08G65/26 ,  C03C25/326 ,  C03C25/16

    Abstract: Described herein is a compact polyurethane having a density of ≥850 g/l, obtainable by reacting at least the components: i) a polyisocyanate composition; and ii) a polyol composition, including at least one polyether polyol (ii.1) which is obtainable by reacting ii.1.1) a polyol starter with a functionality of 3 to 6 with ii.1.2) propylene oxide and/or butylene oxide, in the presence of a boron-based, fluorine-containing Lewis acid catalyst (ii.1.3), where the polyether polyol (ii.1) has an equivalent molecular weight of 50 to 150 g/mol, and ii.1.4) optionally further auxiliaries and/or additives. Also described herein are a process for producing such a compact polyurethane and compact polyurethanes obtainable by this process. Also described herein is a method of using such a compact polyurethane for the production of a fiber composite. Also described herein are a corresponding fiber composite material and a process for producing such a fiber composite.

    POLYURETHANES HAVING LOW EMISSIONS OF ORGANIC COMPOUNDS
    20.
    发明申请
    POLYURETHANES HAVING LOW EMISSIONS OF ORGANIC COMPOUNDS 有权

    公开(公告)号：US20210054132A1

    公开(公告)日：2021-02-25

    申请号：US16964794

    申请日：2019-01-23

    Applicant: BASF SE

    Inventor： Zeljko Tomovic ,  Sirus Zarbakhsh ,  Iran Otero Martinez

    IPC: C08G18/76 ,  C08G18/72 ,  C08G18/48 ,  C08G18/42 ,  C08G18/40 ,  C08G18/32 ,  C08G18/79

    Abstract: The present disclosure relates to a process for producing polyurethanes including mixing (a) polyisocyanate, (b) polymeric compounds having isocyanate-reactive groups, (c) catalysts and optionally (d) blowing agents, (e) chain-extending and/or crosslinking agents and (f) auxiliaries and/or additives to afford a reaction mixture and reacting the reaction mixture to afford polyurethane. The polymeric compounds having isocyanate-reactive groups (b) are a polyesterol (b1) obtainable by polycondensation of an acid component with an alcohol component. The acid component includes malonic acid and/or derivatives thereof and the alcohol component includes an aliphatic dialcohol having 4 to 12 carbon atoms. The present disclosure further relates to a polyurethane obtainable by such a process and to a method of using in enclosed spaces.

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