公开(公告)号：US20170267806A1

公开(公告)日：2017-09-21

申请号：US15100091

申请日：2014-11-19

Applicant: BASF SE

Inventor： Julia GOESCHEL ,  Markus SCHUETTE ,  Berend ElLING

IPC: C08G18/67 ,  C08G18/22 ,  C08G18/76 ,  C08G18/42 ,  C08G18/10 ,  C08G18/32 ,  C08G18/78

CPC classification number: C08G18/675 ,  B29C70/48 ,  B29K2075/00 ,  B60Y2410/122 ,  C08G18/092 ,  C08G18/10 ,  C08G18/225 ,  C08G18/3206 ,  C08G18/3218 ,  C08G18/4045 ,  C08G18/4236 ,  C08G18/58 ,  C08G18/7671 ,  C08G18/78 ,  C08G2105/02

Abstract: The present invention relates to a process for preparing polyurethanes by mixing a) polyisocyanate, b) a mixture obtainable by introducing an alkali metal or alkaline earth metal salt into a compound comprising urethane groups, c) compounds comprising one or more epoxide groups, and, optionally, d) polyol, e) chain extenders, and f) fillers and further additives to form a reaction mixture and fully reacting the mixture to give the polyurethane, where the amount of alkali metal or alkaline earth metal ions per equivalent urethane groups in the compound (b) is 0.0001 to 3.5. The present invention further relates to a polyurethane obtainable by such a process, and to the use of such a polyurethane for producing bodywork components for vehicles.

公开(公告)号：US20170173854A1

公开(公告)日：2017-06-22

申请号：US15129540

申请日：2015-03-11

Applicant: BASF SE

Inventor： Stefan BOKERN ,  Frank PRISSOK ,  Sebastian HARTWIG ,  Elmar POESELT ,  Julia GOESCHEL

IPC: B29C61/00 ,  C08G18/48 ,  C08G18/75 ,  C08G18/66 ,  C08G18/42 ,  C08G18/24 ,  C08G18/32 ,  B29C61/06 ,  C08G18/76

CPC classification number: B29C61/003 ,  B29C61/06 ,  B29K2075/00 ,  C08G18/244 ,  C08G18/3206 ,  C08G18/3215 ,  C08G18/4244 ,  C08G18/4825 ,  C08G18/4854 ,  C08G18/4879 ,  C08G18/6674 ,  C08G18/6681 ,  C08G18/758 ,  C08G18/7671 ,  C08G2280/00

Abstract: The present invention relates to a process for producing a shaped body (SB) comprising the preparation of a thermoplastic polyurethane, the production of a shaped body (SB*) from the thermoplastic polyurethane, the heating of the shaped body (SB*) to a temperature below the temperature of permanent deformability of the shaped body (SB*) and above the switching temperature of the thermoplastic polyurethane, the expanding of the heated shaped body (SB*) to obtain a shaped body (SB), and the cooling of the shaped body (SB) to a temperature below the switching temperature of the thermoplastic polyurethane, and to the shaped bodies obtained or obtainable by such a process. The present invention further relates to the use of a thermoplastic polyurethane for production of a shaped body having shape memory effect within a temperature range from 20° C. to 120° C.

公开(公告)号：US20180086871A1

公开(公告)日：2018-03-29

申请号：US15561747

申请日：2016-03-23

Applicant: BASF SE

Inventor： Stefan BOKERN ,  Frank PRISSOK ,  Sebastian HARTWIG ,  Elmar POESELT ,  Julia GOESCHEL ,  Uwe KEPPELER

IPC: C08G18/32 ,  C08G18/48 ,  C08J9/228

CPC classification number: C08G18/3215 ,  C08G18/4879 ,  C08G2280/00 ,  C08J9/228

Abstract: The present invention relates to a process for producing a molding (FK), comprising the production of a thermoplastic polyurethane, comprising the reaction of at least one polyisocyanate composition, at least one chain extender, and at least one polyol composition, the production of a molding (FK*) from the thermoplastic polyurethane, the heating of the molding (FK*) to a temperature below the temperature at which the molding (FK*) is permanently deformable, and above the switching temperature of the thermoplastic polyurethane, the compressing of the heated molding (FK*) to give a molding (FK), and the cooling of the molding (FK) to a temperature below the switching temperature of the thermoplastic polyurethane, and also to the moldings obtainable or obtained by such a process.