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. 21, 1984
Filed:
Apr. 11, 1983
Applicant:
Inventors:
James R Butler, Big Spring, TX (US);
James M Watson, Big Spring, TX (US);
Debra L Kendall, Big Spring, TX (US);
Karen A Mikkelson, Lubbock, TX (US);
Assignee:
Cosden Technology, Inc., Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C08F / ;
U.S. Cl.
CPC ...
252403 ; 526 83 ; 526 84 ; 526 85 ;
Abstract
A compound and a process for utilizing the compound to prevent the polymerization of vinyl aromatic compounds, such as styrene, during heating. The composition includes effective amounts of 2,6-dinitro-p-cresol and either a phenylenediamine or 4-tert-butylcatechol respectively, to act as a polymerization co-inhibitor system in the presence of oxygen.