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:
Apr. 09, 2024
Filed:
Feb. 16, 2022
Applicant:
Covestro Llc, Pittsburgh, PA (US);
Inventors:
Rick Adkins, Canonsburg, PA (US);
Jack Reese, Renfrew, PA (US);
Assignee:
COVESTRO LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/26 (2006.01); B01J 19/00 (2006.01); B01J 19/06 (2006.01); B01J 19/18 (2006.01); C08G 18/04 (2006.01); C08G 18/16 (2006.01); C08G 18/48 (2006.01); C08G 18/67 (2006.01); C08G 18/81 (2006.01);
U.S. Cl.
CPC ...
C08G 18/485 (2013.01); B01J 19/0066 (2013.01); B01J 19/06 (2013.01); B01J 19/1868 (2013.01); C08G 18/04 (2013.01); C08G 18/168 (2013.01); C08G 18/678 (2013.01); C08G 18/8108 (2013.01); C08G 65/2606 (2013.01); C08G 65/2609 (2013.01); B01J 2219/00033 (2013.01);
Abstract
Processes for preparing a polymer polyol (PMPO) in which a base polyol is continuously produced in a continuous base polyol reactor, the base polyol is continuously discharged from the continuous base polyol reactor; the base polyol is continuously introduced to a continuous PMPO reactor, which is different from the continuous base polyol reactor, and PMPO is continuously removed from the PMPO reactor. Production plant configured to carry out such processes are also described.