-
公开(公告)号：US11052570B2
公开(公告)日：2021-07-06
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: B29B7/88 , B29C48/05 , B29C48/00 , B29C48/345 , B29C48/385 , B29B9/06 , B29C44/34 , C08J9/12 , B29B9/12 , C08J9/34 , C08J9/16 , C08J9/236 , C08J9/18 , B29K75/00 , B29K101/12 , B29C48/04 , B29K105/04
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：US11285651B2
公开(公告)日：2022-03-29
申请号：US15574501
申请日：2016-05-12
Applicant: BASF SE
Inventor： Bin-Erik Chen , Akira Nomura
IPC: B29C48/09 , D01D5/24 , D01F6/70 , D01D5/088 , B29C48/32 , B29C48/88 , B29C48/00 , B29C48/92 , B01D69/04 , B01D69/08 , B01D71/54 , B01D67/00 , D01F1/10 , B01D53/22 , B29K75/00 , B29C67/24
Abstract: The present invention is directed to a process for the preparation of a tube with an outer diameter in the range of from 10 μm to 250 μm consisting of a composition comprising a thermoplastic polyurethane as well as to a tube with an outer diameter in the range of from 10 μm to 250 μm consisting of a composition comprising a thermoplastic polyurethane obtained or obtainable by the process according to the invention. The invention is further directed to the use of a tube according to the invention as a tube for the transportation of a fluid or as gas membrane tube or as an elastic fiber.
-
公开(公告)号：US09605131B2
公开(公告)日：2017-03-28
申请号：US13857524
申请日：2013-04-05
Applicant: BASF SE
Inventor： Wei Zhuang , Bin Chen , Akira Nomura , Etsuhiro Yamamoto , Jianqiang Qu , Michi Kondo , Tienkuan Lim , Frank Schaefer
CPC classification number: C08K5/12 , C08G18/0895 , C08G18/4854 , C08G18/6674 , C08G18/7671 , C08L75/04 , C08L75/08
Abstract: This invention is directed to a thermoplastic polyurethanes composition comprising polyether-based thermoplastic polyurethane and 1,2-cyclohexane dicarboxylic acid ester and preparation processes thereof. The thermoplastic polyurethane composition has a good mold release behavior in injection molding without undesirably significant shrinkage and surface blooming of final product.
-
4.发明申请公开(公告)号：US20130267639A1
公开(公告)日：2013-10-10
申请号：US13857524
申请日：2013-04-05
Applicant: BASF SE
Inventor： Wei ZHUANG , Bin Chen , Akira Nomura , Etsuhiro Yamamoto , Jianqiang Qu , Michi Kondo , Tienkuan Lim , Frank Schaefer
IPC: C08K5/12
CPC classification number: C08K5/12 , C08G18/0895 , C08G18/4854 , C08G18/6674 , C08G18/7671 , C08L75/04 , C08L75/08
Abstract: This invention is directed to a thermoplastic polyurethanes composition comprising polyether-based thermoplastic polyurethane and 1,2-cyclohexane dicarboxylic acid ester and preparation processes thereof. The thermoplastic polyurethane composition has a good mold release behavior in injection molding without undesirably significant shrinkage and surface blooming of final product.
Abstract translation: 本发明涉及一种包含聚醚基热塑性聚氨酯和1,2-环己烷二羧酸酯的热塑性聚氨酯组合物及其制备方法。 热塑性聚氨酯组合物在注射成型中具有良好的脱模性能，而没有不期望的显着收缩和最终产品的表面起霜。
-
-
-
Search Results
4
records
(took 0.011 seconds)
