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. 23, 2022
Filed:
Oct. 10, 2019
Applicant:
Covestro Llc, Pittsburgh, PA (US);
Inventor:
Rick L. Adkins, Canonsburg, PA (US);
Assignee:
Covestro LLC, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/38 (2006.01); C08F 255/00 (2006.01); C08F 283/06 (2006.01); C08F 285/00 (2006.01); C08F 290/14 (2006.01); C08G 18/48 (2006.01); C08G 18/63 (2006.01); C08G 18/81 (2006.01); C08K 5/14 (2006.01);
U.S. Cl.
CPC ...
C08F 255/00 (2013.01); C08F 2/38 (2013.01); C08G 18/4866 (2013.01); C08G 18/632 (2013.01); C08G 18/635 (2013.01); C08G 18/8116 (2013.01); C08K 5/14 (2013.01); C08G 2110/0008 (2021.01);
Abstract
This invention relates to novel preformed stabilizers in which a portion of the polymer control agent is recovered and comprises from 10 to 1500 ppm of an inhibitor. This invention also relates to a process for preparing these preformed stabilizers, and to polymer polyols comprising these novel preformed stabilizers macromers and to a process for preparing polymer polyols comprising these novel preformed stabilizers. The present invention also relates to polyurethane foams comprising these polymer polyols, and to processes for preparing these polyurethane foams.