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:
Jul. 11, 2017
Filed:
Apr. 08, 2014
Applicant:
Bayer Materialscience Ag, Leverkusen, DE;
Inventors:
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 18/42 (2006.01); C08G 63/672 (2006.01); C08J 9/14 (2006.01); C08G 18/76 (2006.01); C08G 18/09 (2006.01); C08G 18/40 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08J 9/141 (2013.01); C08G 18/092 (2013.01); C08G 18/4018 (2013.01); C08G 18/4252 (2013.01); C08G 18/7664 (2013.01); C08G 63/672 (2013.01); C08G 2101/0025 (2013.01); C08G 2150/00 (2013.01); C08J 2375/06 (2013.01);
Abstract
The invention relates to a polyester polyol which contains building units which are derived from ethylene glycol and/or diethylene glycol and which is characterized in that the polyester polyol furthermore comprises building units which are derived from at least one long-chain polyester polyol with a number-average molar mass of 1500 to 8000 Da. The invention further relates to a process for the production thereof and use thereof, in particular for the production of rigid PUR/PIR foams.