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. 23, 2021
Filed:
Jul. 12, 2019
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Jonathan Masere, Richmond, TX (US);
Andrew R. Neilson, Richmond, TX (US);
Bassam Alnasleh, Sugar Land, TX (US);
Ramon Colorado, Jr., Stafford, TX (US);
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/40 (2006.01); C08F 12/30 (2006.01); C08F 12/36 (2006.01); C08F 20/06 (2006.01); C08F 20/18 (2006.01); C08F 20/44 (2006.01); C08F 26/06 (2006.01); C08K 5/00 (2006.01); C08K 5/08 (2006.01); C08K 5/17 (2006.01); C08K 5/3435 (2006.01);
U.S. Cl.
CPC ...
C08F 2/40 (2013.01); C08F 12/30 (2013.01); C08F 12/36 (2013.01); C08F 20/06 (2013.01); C08F 20/18 (2013.01); C08F 20/44 (2013.01); C08F 26/06 (2013.01); C08K 5/005 (2013.01); C08K 5/08 (2013.01); C08K 5/17 (2013.01); C08K 5/3435 (2013.01);
Abstract
Described are compositions and methods for inhibiting polymerization of a monomer (e.g., styrene) composition, which use an N—O polymerization inhibitor, a quinone methide polymerization retarder, and an amine stabilizer having a primary and/or secondary amine group. In a mixture, the amine-based stabilizer can prevent antagonistic effects and can provide greater antipolymerant activity. In turn, the mixture inhibits apparatus fouling and improves the purity of monomer streams.