POLYURETHANE WITH IMPROVED TEAR STRENGTH
    5.
    发明申请

    公开(公告)号:US20190322794A1

    公开(公告)日:2019-10-24

    申请号:US16462977

    申请日:2017-12-22

    Applicant: BASF SE

    Abstract: The present invention relates to a thermoplastic polyurethane obtainable or obtained by reacting a polyisocyanate composition, a chain extender, and a polyol composition, wherein the polyol composition comprises a polyol (P1) which has a molecular weight Mw in the range from 1500 to 2500 g/mol and has at least one aromatic polyester block (B1). The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.

    TPU SHRINK MATERIAL
    6.
    发明申请
    TPU SHRINK MATERIAL 审中-公开

    公开(公告)号:US20190010274A1

    公开(公告)日:2019-01-10

    申请号:US16063514

    申请日:2016-12-21

    Applicant: BASF SE

    Abstract: The present invention relates to a method for producing a molded body (MB) comprising the production of a thermoplastic polyurethane, the production of a molded body (MB*) from the thermoplastic polyurethane, heating the molded body (MB*) to a temperature below the temperature at which there is permanent deformability of the molded body (MB*), and above the switching temperature of the thermoplastic polyurethanes, elongating the heated molded body (MB*) with obtention of a molded body (MB), and cooling the molded body (MB) to a temperature below the switching temperature of the thermoplastic polyurethane, and the molded body obtained or obtainable by such a method. The present invention further relates to a thermoplastic polyurethane with shape memory and the use of a thermoplastic polyurethane for producing a molded body with shape memory effect in a temperature range from 0° C. to 130° C.

Patent Agency Ranking