Invention Grant
- Patent Title: Transparent hard thermoplastic polyurethanes
-
Application No.: US17252929Application Date: 2019-06-18
-
Publication No.: US12077628B2Publication Date: 2024-09-03
- Inventor: Sebastian Richter , Zeljko Tomovic , Sirus Zarbakhsh
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Grüneberg and Myers PLLC
- Priority: EP 178490 2018.06.19
- International Application: PCT/EP2019/066018 2019.06.18
- International Announcement: WO2019/243334A 2019.12.26
- Date entered country: 2020-12-16
- Main IPC: C08G18/42
- IPC: C08G18/42 ; C08G18/32 ; C08G18/66 ; C08G18/76 ; C08J5/18

Abstract:
The present invention relates to a thermoplastic polyurethane obtainable or obtained by reacting a polyisocyanate composition, a chain extender, and a polyol composition, wherein the polyol composition comprises at least one polyol (P1) which has a molecular weight Mw in the range from 500 to 2500 g/mol and has at least one aromatic polyester block (B1), wherein the polyol (P1) includes 20% to 70% by weight of the aromatic polyester blocks (B1), based on the overall polyester polyol (P1). The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.
Public/Granted literature
- US20210163660A1 TRANSPARENT HARD THERMOPLASTIC POLYURETHANES Public/Granted day:2021-06-03
Information query