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    Producing polymer foams comprising imide groups
    36.
    发明授权
    Producing polymer foams comprising imide groups 有权

    公开(公告)号：US09598548B2

    公开(公告)日：2017-03-21

    申请号：US13961246

    申请日：2013-08-07

    Applicant: BASF SE

    Inventor： Anna Mueller-Cristadoro ,  Frank Prissok

    IPC: C08J9/08 ,  C08J9/00 ,  C08G18/48 ,  C08G18/80 ,  C08G18/34 ,  C08G101/00

    CPC classification number: C08J9/0061 ,  C08G18/341 ,  C08G18/346 ,  C08G18/4825 ,  C08G18/8048 ,  C08G2101/005

    Abstract: A process for producing a polymer foam comprises reacting components A to C in the presence of component D and optionally E or an isocyanate-functional prepolymer of components A and B with component C in the presence of component D and optionally component E, the total amount of which is 100 wt %, (A) 35 to 65 wt % of at least one polyisocyanate component A, wherein 10 to 100 wt % of component A is a condensation product comprising polyimide groups and resulting from condensing at least one polyisocyanate component with at least one polycarboxylic acid having at least 3 COOH groups per molecule or its anhydride, (B) 5 to 50 wt % of at least one polyol component B, (C) 1 to 59 wt % of at least one polycarboxylic acid component C, and (D) 0.01 to 3 wt % of at least one Lewis base component D, (E) 0 to 5 wt % of at least one foam stabilizer component E, wherein the reaction takes place with release of carbon dioxide.

    Polyurethane-based polymer composition
    37.
    发明授权
    Polyurethane-based polymer composition 有权
    聚氨酯类聚合物组合物

    公开(公告)号：US09499652B2

    公开(公告)日：2016-11-22

    申请号：US14778931

    申请日：2014-03-20

    Applicant: BASF SE

    Inventor： Patrick Spies ,  Frank Braun ,  Frank Prissok

    IPC: C08L75/04 ,  C08G18/04 ,  C08F283/00 ,  C08K3/00 ,  C08K5/00 ,  C08K5/02

    CPC classification number: C08F283/006 ,  C08K3/016 ,  C08K5/0066 ,  C08K5/02 ,  C08L75/04 ,  C08F212/08

    Abstract: A polymer composition comprising at least one thermoplastic polyurethane (TPU) with a Vicat softening point (in accordance with ISO 306/A50) below 80° C. and from 5 to 95% by weight of at least one polymer obtainable via free-radical polymerization, based on the entirety of TPU and of the polymer obtainable via free-radical polymerization, where the polymer obtainable via free-radical polymerization has been bonded in the form of comb polymer, graft polymer, or copolymer to the TPU, is particularly suitable for injection-molding applications.

    Abstract translation: 一种聚合物组合物，其包含至少一种具有维卡软化点（根据ISO 306 / A50）低于80℃的热塑性聚氨酯（TPU）和5至95重量％的至少一种通过自由基聚合获得的聚合物 ，基于通过自由基聚合可获得的TPU和聚合物的整体，其中可通过自由基聚合获得的聚合物以梳状聚合物，接枝聚合物或共聚物的形式结合到TPU，特别适用于 注塑应用。

    Novel particle foams
    40.
    发明申请
    Novel particle foams 有权

    公开(公告)号：US20220267553A1

    公开(公告)日：2022-08-25

    申请号：US17596435

    申请日：2020-06-12

    Applicant: BASF SE ,  BASF Polyurethanes GmbH

    Inventor： Elmar POESELT ,  Uwe Keppeler ,  Christina Tepper ,  Frank Prissok ,  Dirk Kempfert ,  Lisa Marie Schmidt ,  Wolfgang Guenter Micklitz

    IPC: C08J9/35 ,  C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  C08J9/14 ,  C08J9/228 ,  C08J9/00

    Abstract: A process can be used for producing a thermoplastic polyurethane, where the process at least involves converting at least one isocyanate composition and a polyol composition, to obtain a prepolymer having isocyanate groups, and reacting the resulting prepolymer with at least one chain extender. The at least one isocyanate composition contains an isocyanate selected from naphthylene 1,5-diisocyanate (NDI), diphenylmethane 4,4′-diisocyanate (MDI), p-phenyl diisocyanate (PPDI), o-tolidine diisocyanate (TODI), ethylene diphenyl diisocyanate (EDI), or mixtures thereof. The polyol composition contains a polytetrahydrofuran or a derivative thereof. A thermoplastic polyurethane obtained or obtainable by such a process is useful, and a foamed pellet material can be produced containing such a thermoplastic polyurethane. The foamed pellet material of the invention can be used for production of a molded article.

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