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:
Sep. 06, 2022
Filed:
Dec. 12, 2018
Applicant:
Covestro Deutschland Ag, Leverkusen, DE;
Inventors:
Assignee:
COVESTRO DEUTSCHLAND AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/38 (2006.01); C08G 18/16 (2006.01); C08G 18/18 (2006.01); C08G 18/22 (2006.01); C08G 18/42 (2006.01); C08G 18/66 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08J 9/14 (2006.01);
U.S. Cl.
CPC ...
C08G 18/3831 (2013.01); C08G 18/163 (2013.01); C08G 18/1816 (2013.01); C08G 18/225 (2013.01); C08G 18/4238 (2013.01); C08G 18/6633 (2013.01); C08J 9/0038 (2013.01); C08J 9/125 (2013.01); C08J 9/127 (2013.01); C08J 9/141 (2013.01); C08G 2110/005 (2021.01); C08G 2110/0025 (2021.01); C08G 2110/0058 (2021.01); C08G 2110/0066 (2021.01); C08J 2203/10 (2013.01); C08J 2203/14 (2013.01); C08J 2203/182 (2013.01); C08J 2205/10 (2013.01); C08J 2375/12 (2013.01);
Abstract
A process for producing rigid PUR/PIR foams via the reaction of a reaction mixture comprising A1 an isocyanate-reactive component, A2 a flame retardant, A3 a blowing agent, A4 a catalyst, and A5 optionally auxiliaries and additives with B an organic polyisocyanate component. Component A1 comprises a diurethane diol A1.1 and a compound A1.2 selected from the group consisting of polyether polyol, polyester polyol, polyether carbonate polyol, and polyether ester polyol. Also disclosed is a rigid PUR/PIR foam, an insulating material, a composite element, and a mixture.