公开(公告)号：US11267926B2

公开(公告)日：2022-03-08

申请号：US16346715

申请日：2017-11-14

Applicant: BASF SE

Inventor： Johannes Poppenberg ,  Waldemar Meier ,  Christina Tepper ,  Markus Susoff ,  Dejan Petrovic ,  Steffen Richter

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.

公开(公告)号：US11759983B2

公开(公告)日：2023-09-19

申请号：US16642489

申请日：2018-09-13

Applicant: BASF SE

Inventor： Sebastian Richter ,  Achim Besser ,  Sebastian Alexander Weisse ,  Johannes Poppenberg ,  Johann Martin Szeifert ,  Markus Susoff ,  Steffen Mayer ,  Markus Schuette ,  Heinz-Dieter Lutter

IPC: B29C44/34 ,  B29C44/56 ,  B29C51/02 ,  B29K61/00 ,  B29K75/00

CPC classification number: B29C44/357 ,  B29C44/5636 ,  B29C51/02 ,  B29K2061/00 ,  B29K2075/00 ,  B29K2995/0002 ,  B29K2995/0063

Abstract: Described herein is a process for preparing a foam (FA) with a Poisson's ratio in the range of from −0.5 to 0.3, the method including the steps of providing a foam (F1) with a flow resistance in the range of from 3000 to 8000 Pas/m, determined according to DIN EN 29053, and subjecting the foam (F1) to thermoforming including triaxial compression, wherein the foam (F1) is not reticulated prior to step (ii). Also described herein is the foam obtained or obtainable according to the process and the use of the foam as, for example, an energy absorbing device, preferably in protective gear, furniture, cushions, in cleaning devices with improved rinse-out behavior, in shoe soles, or as sealing, insulating or anchorage providing material for example used in earphones, ear plugs or dowels, or as acoustic material.

公开(公告)号：US20200254659A1

公开(公告)日：2020-08-13

申请号：US16642489

申请日：2013-09-13

Applicant: BASF SE

Inventor： Sebastian Richter ,  Achim Besser ,  Sebastian Alexander Weisse ,  Johannes Poppenberg ,  Johann Martin Szeifert ,  Markus Susoff ,  Steffen Mayer ,  Markus Schuette ,  Heinz-Dieter Lutter

IPC: B29C44/34 ,  B29C44/56 ,  B29C51/02

Abstract: Described herein is a process for preparing a foam (FA) with a Poisson's ratio in the range of from −0.5 to 0.3, the method including the steps of providing a foam (F1) with a flow resistance in the range of from 3000 to 8000 Pas/m, determined according to DIN EN 29053, and subjecting the foam (F1) to thermoforming including triaxial compression, wherein the foam (F1) is not reticulated prior to step (ii). Also described herein is the foam obtained or obtainable according to the process and the use of the foam as, for example, an energy absorbing device, preferably in protective gear, furniture, cushions, in cleaning devices with improved rinse-out behavior, in shoe soles, or as sealing, insulating or anchorage providing material for example used in earphones, ear plugs or dowels, or as acoustic material.