REACTIVE THERMOPLASTIC POLYURETHANE BASED ON BLOCKED ISOCYANATES

    公开(公告)号:US20200010607A1

    公开(公告)日:2020-01-09

    申请号:US16482951

    申请日:2018-02-16

    Applicant: BASF SE

    Abstract: A method for producing a shaped body, containing: producing the shaped body from a composition by a powder-based layer construction process, wherein the composition contains a thermoplastic polyurethane, obtained by reacting a polyisocyanate composition and a polyol composition, the thermoplastic polyurethane is solid at least in a temperature region below 50° C. and has end groups selected from the group consisting of first end groups and second end groups, wherein the first end groups are optionally eliminated at a first temperature, and the second end groups are optionally eliminated at a second temperature, to form reactive groups on the thermoplastic polyurethane that optionally enter into a reaction with functional groups of the thermoplastic polyurethane or functional groups of a further component of the composition, and wherein the first temperature and the second temperature are each greater than or equal to 60° C.

    PROCESS FOR PREPARING A POLYURETHANE USING A POLYESTER POLYOL COMPRISING POLYCYCLIC AROMATIC MOIETIES

    公开(公告)号:US20200095368A1

    公开(公告)日:2020-03-26

    申请号:US16495514

    申请日:2018-04-26

    Applicant: BASF SE

    Abstract: The present invention is directed to a polyisocyanate polyaddition product, obtained or obtainable according to a process containing reacting at least a polyisocyanate composition (C-I) comprising at least one polyisocyanate; and a composition (C-II) comprising at least one compound (C-A) having at least two functional groups which are reactive towards isocyanate groups, wherein the compound (C-A) has a molecular weight of 500 g/mol or more and comprises polycyclic aromatic moieties. The present invention is further directed to a process for preparing said polyisocyanate polyaddition product and the use thereof in a cable, conveyor belt, roller, seal for gasket or railway pad.

Patent Agency Ranking