The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2023
Filed:
Sep. 13, 2018
Basf SE, Ludwigshafen am Rhein, DE;
Sebastian Richter, Lemfoerde, DE;
Achim Besser, Ludwigshafen, DE;
Sebastian Alexander Weisse, Ludwigshafen, DE;
Johannes Poppenberg, Wyandotte, MI (US);
Johann Martin Szeifert, Ludwigshafen, DE;
Markus Susoff, Lemfoerde, DE;
Steffen Mayer, Ludwigshafen, DE;
Markus Schuette, Lemfoerde, DE;
Heinz-Dieter Lutter, Lemfoerde, DE;
BASF SE, Ludwigshafen am Rhein, DE;
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.