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:
Nov. 09, 2021
Filed:
Mar. 05, 2018
Applicant:
Covestro Deutschland Ag, Leverkusen, DE;
Inventors:
Christian Hahn, Leverkusen, DE;
Reinhard Albers, Leverkusen, DE;
Ali-Kasim Anwar, Essen, DE;
Paul Heinz, Leverkusen, DE;
Michael Baecker, Korschenbroich, DE;
Marcel Schornstein, Neuss, DE;
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/48 (2006.01); C08G 18/18 (2006.01); B29C 44/10 (2006.01); C08G 18/76 (2006.01); C08J 9/12 (2006.01); F16L 59/02 (2006.01); B29C 41/00 (2006.01); B29C 45/00 (2006.01); C08J 9/14 (2006.01); F25D 23/06 (2006.01); B29K 75/00 (2006.01); B29L 31/00 (2006.01); B29K 105/00 (2006.01); B29K 105/04 (2006.01);
U.S. Cl.
CPC ...
C08G 18/1841 (2013.01); B29C 41/003 (2013.01); B29C 44/10 (2013.01); B29C 45/0001 (2013.01); C08G 18/1825 (2013.01); C08G 18/485 (2013.01); C08G 18/4816 (2013.01); C08G 18/4829 (2013.01); C08G 18/4845 (2013.01); C08G 18/4854 (2013.01); C08G 18/7664 (2013.01); C08J 9/122 (2013.01); C08J 9/142 (2013.01); F16L 59/028 (2013.01); F25D 23/064 (2013.01); F25D 23/066 (2013.01); B29K 2075/00 (2013.01); B29K 2105/0014 (2013.01); B29K 2105/045 (2013.01); B29K 2995/0063 (2013.01); B29L 2031/7622 (2013.01); C08G 2110/005 (2021.01); C08G 2110/0025 (2021.01); C08G 2110/0058 (2021.01); C08G 2110/0066 (2021.01); C08J 2203/06 (2013.01); C08J 2203/08 (2013.01); C08J 2203/12 (2013.01); C08J 2205/044 (2013.01); C08J 2205/05 (2013.01); C08J 2205/10 (2013.01); C08J 2375/08 (2013.01);
Abstract
The invention relates to a process used to produce open-cell and extremely fine-cell PUR/PIR rigid foams, said process using a polyol formulation comprising a specific isocyanate-reactive component, a catalyst component having zerewitinoff-active hydrogens and a cell-opener component.