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.

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.