Invention Grant
- Patent Title: Low-damping polyurethane elastomer
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Application No.: US16346715Application Date: 2017-11-14
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Publication No.: US11267926B2Publication Date: 2022-03-08
- Inventor: Johannes Poppenberg , Waldemar Meier , Christina Tepper , Markus Susoff , Dejan Petrovic , Steffen Richter
- 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: EP16198630 20161114
- International Application: PCT/EP2017/079173 WO 20171114
- International Announcement: WO2018/087385 WO 20180517
- Main IPC: C08G18/48
- IPC: C08G18/48 ; C08G18/12 ; C08G18/32 ; C08G18/40 ; C08G18/42 ; C08G18/76 ; C08J9/12 ; C08G18/79

Abstract:
The present invention relates to a method of preparing a polyurethane elastomer, said method comprising the step of reacting at least one isocyanate composition (ZI) and one polyol composition (ZP) comprising a poly-ε-caprolactone polyol and an α-hydro-ω-hydroxy-poly(oxytetramethylene) polyol to obtain an isocyanate-functional prepolymer and the step of reacting the prepolymer obtained as per step (i) with at least one chain extender (KV). The present invention further relates to a polyurethane elastomer obtained or obtainable according to a method of the invention and also to the method of using a polyurethane elastomer according to the invention or a polyurethane elastomer obtained or obtainable according to a method of the invention in the manufacture of a shaped article, especially a damping element, a shock absorber or a stop buffer or part of a shoe or of a shoe sole, for example part of an insert sole or of a midsole.
Public/Granted literature
- US20190276582A1 LOW-DAMPING POLYURETHANE ELASTOMER Public/Granted day:2019-09-12
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