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:
Feb. 03, 2015
Filed:
Dec. 22, 2008
Applicants:
Carsten Schiller, Muelheim an der Ruhr, DE;
Matthias Naumann, Greensboro, NC (US);
Ruediger Landers, Essen, DE;
Christian Eilbracht, Herne, DE;
Inventors:
Carsten Schiller, Muelheim an der Ruhr, DE;
Matthias Naumann, Greensboro, NC (US);
Ruediger Landers, Essen, DE;
Christian Eilbracht, Herne, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The object of the invention is a method for producing polyurethane and/or polyisocyanurate insulating foam based on foaming reaction mixtures containing polyisocyanates, compounds having reactive hydrogen atoms, propellants, stabilizers, nucleation agents, and optionally further additives, which is characterized in that porous solids, in particular silicates having a zeolite structure, are used as the nucleation agents.