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:
Aug. 08, 2023
Filed:
Jul. 28, 2021
Applicant:
Covestro Llc, Pittsburgh, PA (US);
Inventors:
Sharlene A. Lewis, Pittsburgh, PA (US);
Jack R. Reese, Renfrew, PA (US);
Assignee:
Covestro LLC, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/16 (2006.01); C08G 18/18 (2006.01); C08G 18/20 (2006.01); C08G 18/24 (2006.01); C08G 18/28 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); C08G 65/12 (2006.01); C08G 65/26 (2006.01); C08J 9/12 (2006.01); C08L 71/02 (2006.01);
U.S. Cl.
CPC ...
C08G 18/485 (2013.01); C08G 18/7621 (2013.01); C08G 18/7671 (2013.01); C08G 65/12 (2013.01); C08J 9/125 (2013.01); C08G 2110/0083 (2021.01); C08J 2203/10 (2013.01); C08J 2375/08 (2013.01);
Abstract
This invention relates to an in-situ formed polyether polyol blend having an overall functionality of 2 to 3 and an overall hydroxyl number of 40 to 220 mg KOH/g. A process for preparing these in-situ formed polyether polyol blends is also disclosed. These in-situ formed polyether polyol blends are suitable for a process of preparing viscoelastic flexible polyurethane foams.