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. 02, 2021
Filed:
Jul. 25, 2014
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 18/00 (2006.01); C08J 9/00 (2006.01); C08G 18/18 (2006.01); C08G 18/48 (2006.01); C08G 18/20 (2006.01); C08L 63/00 (2006.01); C08G 18/76 (2006.01); C08G 101/00 (2006.01); C08G 18/58 (2006.01);
U.S. Cl.
CPC ...
C08J 9/0061 (2013.01); C08G 18/003 (2013.01); C08G 18/1816 (2013.01); C08G 18/2027 (2013.01); C08G 18/4812 (2013.01); C08G 18/4829 (2013.01); C08G 18/7664 (2013.01); C08L 63/00 (2013.01); C08G 18/58 (2013.01); C08G 2101/005 (2013.01); C08G 2101/0025 (2013.01); C08G 2101/0058 (2013.01); C08G 2101/0083 (2013.01); C08J 2375/08 (2013.01); C08J 2463/00 (2013.01);
Abstract
The present invention relates to a method for producing a rigid foam, which comprises reacting at least one polyisocyanate with a mixture comprising at least one polyepoxide, water, and at least one other hydrogen-acidic compound, the reaction taking place in the presence of a metal-free Lewis base having at least one nitrogen atom, to rigid foams obtainable by such a method, and to the use of a rigid foam of the invention for producing insulating materials, vacuum insulation panels, refrigeration equipment, construction elements, wind rotor blades, or elements for boatbuilding and vehicle construction.