Abstract
The present invention relates to a method for producing a molded body (FK), comprising producing a thermoplastic polyurethane, producing a molded body (FK*) from the thermoplastic polyurethane, heating the molded body (FK*) to a temperature below the temperature at which there is permanent deformability of the molded body (FK*) and above the switching temperature of the thermoplastic polyurethane, elongating the heated molded body (FK*) and thus obtaining a molded body (FK), and cooling the molded body (FK) to a temperature below the switching temperature of the thermoplastic polyurethane. The invention also relates to molded bodies that are or can be obtained by such a method. Furthermore, the present invention relates to a thermoplastic polyurethane having a shape memory effect and to the use of a thermoplastic polyurethane for producing a molded body having a shape memory effect in a temperature range of O °C to 130 °C.
| Translated title of the contribution | TPU with shape memory effect. |
|---|---|
| Original language | German |
| Patent number | WO2017/108920Al |
| Priority date | 22/12/15 |
| Filing date | 21/12/16 |
| Publication status | Published - 29 Jun 2017 |
| Externally published | Yes |
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