公开(公告)号：US10927253B2

公开(公告)日：2021-02-23

申请号：US16078070

申请日：2017-02-22

Applicant: BASF SE

Inventor： Raphael Dabbous ,  Elmar Poeselt ,  Birte Lahrmann ,  Guido Bilges

IPC: C08L75/04 ,  C08G18/32 ,  C08G18/42 ,  C08G18/48 ,  C08G18/66 ,  C08G18/73 ,  C08G18/76 ,  C08J3/20 ,  C08K5/3437 ,  C08L75/06 ,  C08L75/08 ,  C08G18/75 ,  C08K5/3417 ,  C08G18/06 ,  C08K5/3415 ,  C08K5/18 ,  C08K5/3412 ,  C08K5/16 ,  C08K5/34 ,  C08K3/105

Abstract: The present invention relates to a process for producing a composition (I) at least comprising a compact thermoplastic polyurethane (P1), comprising the providing of at least one compact thermoplastic polyurethane (P1) or a reaction mixture for production of a compact thermoplastic polyurethane (R-P1), the adding of at least one compound (N) that has a conjugated, nitrogen-containing aromatic structure as nucleating agent to the at least one thermoplastic polyurethane (P1) or to the reaction mixture for production of a compact thermoplastic polyurethane (R-P1), wherein the compound (N) is a solid; and the mixing of the nucleating agent and the thermoplastic polyurethane (P1) or the reaction mixture (R-P1) to obtain a composition (I). The nucleating agent is used here in an amount in the range from 0.01% by weight to 2.0% by weight, based on the thermoplastic polyurethane (P1) or the reaction mixture (R-P1). Further relates the present composition comprising at least one compact thermoplastic polyurethane and at least one compound (N) that has a conjugated, nitrogen-containing aromatic structure as nucleating agent, wherein the compound (N) is a solid, and the use of the compounds mentioned as nucleating agents for a compact thermoplastic polyurethane.