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. 12, 2019
Filed:
Jan. 14, 2013
Applicant:
Basf SE, Ludwigshafen, DE;
Inventor:
Gunnar Kampf, Stemwede-Haldem, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/08 (2006.01); C08G 18/09 (2006.01); C08G 18/22 (2006.01); C08G 18/40 (2006.01); C08G 18/42 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08G 18/14 (2013.01); C08G 18/092 (2013.01); C08G 18/225 (2013.01); C08G 18/4018 (2013.01); C08G 18/4288 (2013.01); C08G 2101/0025 (2013.01);
Abstract
The present invention relates to a process for preparing rigid polyurethane foams or rigid polyisocyanurate foams by using certain polyetherester polyols B) based on aromatic dicarboxylic acids, optionally further polyester polyols C), which differ from those of component B), and polyether polyols D), wherein the mass ratio of total components B) and optionally C) to component D) is less than 1.6. The present invention also relates to the rigid foams thus obtainable and to their use for producing sandwich elements having rigid or flexible outer layers. The present invention further relates to the underlying polyol components.