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. 19, 1997
Filed:
Mar. 13, 1996
Howard Stephen Friedman, North Haven, CT (US);
Gerald John Abruscato, Southington, CT (US);
John Matthew DeMassa, S. Norwalk, CT (US);
Anthony Vincent Gentile, Waterbury, CT (US);
Anthony Vincent Grossi, Torrington, CT (US);
Uniroyal Chemical Company, Inc., Middlebury, CT (US);
Abstract
A polymerization inhibitor composition for inhibiting the polymerization of aromatic vinyl monomers at elevated temperatures comprising: (a) a benzofuroxan derivative of the formula ##STR1## wherein R is C.sub.1 -C.sub.4 alkyl or alkoxy; R.sup.1 is a nitro group; and m and n are each independently 0, 1, or 2; and (b) a solvent selected from the group consisting of toluene, xylene, ethylbenzene, vinyltoluene, divinylbenzene, alpha-methylstyrene, and a C.sub.12 -C.sub.18 hydrocarbon, and methods for inhibiting the polymerization of aromatic vinyl monomers at elevated temperatures using this composition.