公开(公告)号：US20220033566A1

公开(公告)日：2022-02-03

申请号：US17504817

申请日：2021-10-19

Applicant: BASF SE

Inventor： Julia Christa JAEHNIGEN ,  Nabarun Roy ,  Elmar Poeselt ,  Dejan Petrovic ,  Peter Gutmann ,  Dirk Kempfert

IPC: C08G18/66 ,  C08G18/32 ,  C08G18/42 ,  C08G18/61 ,  C08G18/73 ,  C08G18/76 ,  C08J9/16

Abstract: A polyurethane, in particular a thermoplastic polyurethane, is obtainable or obtained by reacting at least a polyisocyanate composition and a polyol composition. The polyol composition contains at least one polyester diol or polyether diol, having a number-average molecular weight in the range from 500 to 3000 g/mol, and at least one polysiloxane having two terminal isocyanate-reactive functionalities selected from a thio group, a hydroxyl group, and an amino group. A process can be used for preparing this polyurethane, and a molded body containing the polyurethane is useful. Foam beads based on polyurethane can be obtained or obtainable from the polyurethane, and a process can be used for producing foam beads. Corresponding bead foams are useful.

公开(公告)号：US20200231739A1

公开(公告)日：2020-07-23

申请号：US16632230

申请日：2018-07-19

Applicant: BASF SE

Inventor： Julia Christa JAEHNIGEN ,  Nabarun ROY ,  Elmar POESELT ,  Dejan PETROVIC ,  Peter GUTMANN ,  Dirk KEMPFERT

IPC: C08G18/66 ,  C08G18/76 ,  C08G18/73 ,  C08G18/32 ,  C08G18/42 ,  C08G18/61 ,  C08J9/16

Abstract: The present invention relates to a polyurethane, in particular a thermoplastic polyurethane, obtainable or obtained by reacting at least the components (i) to (ii): (i) a polyisocyanate composition; (ii) a polyol composition, comprising (ii.1) at least one polyester diol or polyether diol having a number-average molecular weight in the range from 500 to 3000 g/mol, (ii.2) at least one polysiloxane having two terminal isocyanate-reactive functionalities selected from the group consisting of thio group, hydroxyl group and amino group. The invention additionally relates to a process for preparing this polyurethane, to the use thereof, to a molded body comprising the polyurethane. Furthermore, the invention relates to foam beads based on polyurethane, obtained or obtainable from the polyurethane, to a process for producing foam beads and also to bead foams and to the use thereof.