US 12,304,980 B2
Antifoulant compositions for vapor-space applications
Jonathan Masere, Richmond, TX (US); Zhenxing Xi, Katy, TX (US); David Dixon, Baton Rouge, LA (US); Gregory Appel Melancon, Jr., Baton Rouge, LA (US); Ramon Colorado, Jr., Stafford, TX (US); and Peter Webber, Sugar Land, TX (US)
Assigned to Ecolab USA Inc., St. Paul, MN (US)
Filed by ECOLAB USA INC., St. Paul, MN (US)
Filed on Mar. 28, 2023, as Appl. No. 18/191,262.
Claims priority of provisional application 63/326,389, filed on Apr. 1, 2022.
Prior Publication US 2023/0312770 A1, Oct. 5, 2023
Int. Cl. C08F 2/40 (2006.01)
CPC C08F 2/40 (2013.01) 19 Claims
OG exemplary drawing
 
1. A composition for inhibiting monomer polymerization consisting essentially of:
a first inhibitor compound comprising a hydroxylamine;
a second inhibitor compound comprising a phenylenediamine; and
a third inhibitor compound comprising a benzoquinone or naphthoquinone.