公开(公告)号：US20180066122A1

公开(公告)日：2018-03-08

申请号：US15551314

申请日：2016-02-09

Applicant: BASF SE

Inventor： Hans RUDOLPH ,  Etsuhiro YAMAMOTO ,  Eiji NEGISHI ,  Akira NOMURA ,  Tatsuro TOMATA

IPC: C08J9/18 ,  C08J9/12 ,  B29B7/88 ,  B29B9/06 ,  B29B9/12 ,  B29C44/34 ,  B29C47/00 ,  B29C47/30 ,  B29C47/36

Abstract: A process for producing foamed thermoplastic polyurethane particles comprises the steps of a) melting a thermoplastic polyurethane in a first extruder (E1), b) injecting a gaseous blowing agent in a second extruder (E2), c) impregnating the gaseous blowing agent homogeneously into the thermoplastic polyurethane melt in a third extruder (E3), d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles.

公开(公告)号：US20160145376A1

公开(公告)日：2016-05-26

申请号：US14905697

申请日：2014-07-15

Applicant: BASF SE

Inventor： Bin-Erik CHEN ,  Wei ZHUANG ,  DeHui YIN ,  Etsuhiro YAMAMOTO ,  Yasuyuki SUZUKI

IPC: C08G18/76 ,  D01D5/084 ,  C08G18/42 ,  D01F6/94 ,  C08L75/08 ,  C08G18/10

CPC classification number: C08G18/7664 ,  C08G18/10 ,  C08G18/12 ,  C08G18/4018 ,  C08G18/4238 ,  C08G18/4241 ,  C08G18/4854 ,  C08G18/6588 ,  C08G18/7657 ,  C08L75/04 ,  C08L75/08 ,  D01D5/084 ,  D01F6/70 ,  D01F6/94 ,  D10B2331/10 ,  C08L75/06

Abstract: An isocyanate prepolymer composition and a crosslinked thermoplastic polyurethane composition are disclosed, preferably in the form of a fiber. Also disclosed is the process for preparing said prepolymer composition and crosslinked thermoplastic polyurethane. Both of the isocyanate prepolymer composition and crosslinked thermoplastic polyurethane show improved properties.

Abstract translation: 公开了异氰酸酯预聚物组合物和交联的热塑性聚氨酯组合物，优选以纤维的形式。 还公开了制备所述预聚物组合物和交联的热塑性聚氨酯的方法。 异氰酸酯预聚物组合物和交联的热塑性聚氨酯都具有改进的性能。