公开(公告)号：US20190055341A1

公开(公告)日：2019-02-21

申请号：US16078041

申请日：2017-02-22

Applicant: BASF SE

Inventor： Frank PRISSOK ,  Elmar POESELT ,  Dirk KEMPFERT ,  Florian PUCH ,  Martina SCHOEMER

IPC: C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/76 ,  C08G18/73 ,  C08G18/08

Abstract: The present invention relates to a process for producing a diblock copolymer comprising the reaction of at least one aromatic polyester having a melting point in the range from 160° C. to 350° C. and at least one polymer diol having a melting point of less than 100° C. at a temperature of greater than 200° C. to obtain a mixture (G-a); and the reaction of the mixture (G-a) with at least one diisocyanate, wherein the diisocyanate is employed in a molar amount of at least 0.9 based on the alcohol groups of the polymer diols. The present invention further relates to diblock copolymers obtained or obtainable according to such a process and to the use of such diblock copolymers for producing extruded, injection molded and pressed articles and also foams, cable sheaths, hoses, profiles, drive belts, fibers, nonwovens, films, moldings, plugs, housings, damping elements for the electricals industry, automotive industry, mechanical engineering, 3-D printing, medicine and consumer goods.

公开(公告)号：US20170233520A1

公开(公告)日：2017-08-17

申请号：US15128332

申请日：2015-03-25

Applicant: BASF SE

Inventor： Elmar POESELT ,  Dieter NITSCHKE ,  Birte LAHRMANN ,  Dirk KEMPFERT

IPC: C08G18/76 ,  C08G18/66 ,  C08G18/32 ,  C08G18/48 ,  C08K5/13 ,  C08G18/24 ,  C08G18/40 ,  C08G18/42 ,  B32B1/08 ,  B32B5/02 ,  B32B27/12 ,  B32B27/40 ,  B29C45/00 ,  B29B9/10 ,  B29B9/12 ,  F16L11/08 ,  C08K7/02

CPC classification number: C08G18/7671 ,  B29B9/10 ,  B29B9/12 ,  B29C45/0001 ,  B29C2045/0091 ,  B29K2075/00 ,  B29K2105/06 ,  B29L2023/005 ,  B32B1/08 ,  B32B5/024 ,  B32B27/12 ,  B32B27/40 ,  B32B2262/101 ,  B32B2262/103 ,  B32B2274/00 ,  B32B2307/41 ,  B32B2307/412 ,  B32B2307/414 ,  B32B2307/51 ,  B32B2307/536 ,  B32B2597/00 ,  C08G18/244 ,  C08G18/3206 ,  C08G18/4018 ,  C08G18/4202 ,  C08G18/4238 ,  C08G18/4277 ,  C08G18/44 ,  C08G18/4825 ,  C08G18/4833 ,  C08G18/4854 ,  C08G18/664 ,  C08G18/6674 ,  C08K5/005 ,  C08K5/13 ,  C08K7/02 ,  F16L11/08

Abstract: The present invention relates to a thermoplastic polyurethane obtainable or obtained by the conversion of at least a polyisocyanate composition, propane-1,3-diol as chain extender and a polyol composition, wherein no further chain extender is used aside from propane-1,3-diol, to a process for preparing such a thermoplastic polyurethane, and to the use of such a polyurethane for production of injection molded products, extrusion products, films and shaped bodies.