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:
May. 16, 2006
Filed:
Dec. 16, 2002
Applicants:
Franz-josef Dietzen, Hassloch, DE;
Dietrich Scherzer, Neustadt, DE;
Joachim Queisser, Mannheim, DE;
Swen Rück, Worms, DE;
Gerd Ehrmann, Deidesheim, DE;
Wolfgang Kratzmüller, Lohfelden, DE;
Inventors:
Franz-Josef Dietzen, Hassloch, DE;
Dietrich Scherzer, Neustadt, DE;
Joachim Queisser, Mannheim, DE;
Swen Rück, Worms, DE;
Gerd Ehrmann, Deidesheim, DE;
Wolfgang Kratzmüller, Lohfelden, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B29C 44/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for producing foam webs by foam extrusion of a mixture of a polysulfone or polyether sulfone and a volatile blowing agent, where the blowing agent is water or a mixture of water with an inert gas or organic liquid, e.g. an alcohol or a ketone.