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:
Dec. 16, 2025
Filed:
Jul. 15, 2021
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Christian Traßl, Warmensteinach, DE;
Melanie Niepert, Frankfurt, DE;
Florian Hopf, Neu Isenburg, DE;
Denis Holleyn, Hofheim am Taunus, DE;
Mona Ganglauf, Hoechst, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 44/34 (2006.01); B29B 9/06 (2006.01); B29B 9/16 (2006.01); B29K 79/00 (2006.01); B29K 81/00 (2006.01); C08J 9/16 (2006.01); C08J 9/18 (2006.01);
U.S. Cl.
CPC ...
B29C 44/3461 (2013.01); B29B 9/065 (2013.01); B29B 9/16 (2013.01); C08J 9/16 (2013.01); C08J 9/18 (2013.01); B29K 2079/085 (2013.01); B29K 2081/06 (2013.01); C08J 2379/08 (2013.01); C08J 2381/06 (2013.01);
Abstract
A process can be used for producing (rigid) particle foams from polymer compositions containing at least one polymer having a glass transition temperature according to ISO 11357-2 of at least 180° C. with an underwater pelletization system.