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:
Jul. 15, 1997
Filed:
May. 31, 1995
Applicant:
Inventors:
Graciela B Arhancet, Katy, TX (US);
Inge K Henrici, Spring, TX (US);
J Frederick Martin, Conroe, TX (US);
Assignee:
BetzDearborn Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C10L / ; C10L / ;
U.S. Cl.
CPC ...
585-5 ; 585-2 ; 585-3 ; 585-4 ; 585 24 ; 585950 ;
Abstract
Compositions and methods for inhibiting vinyl aromatic monomer polymerization during processing are disclosed. The compositions comprise a dinitrosalicylic acid derivative and a hydroxylamine compound. The methods comprise adding the composition to the monomer during processing. The preferred composition comprises 3,5-dinitrosalicylic acid or 3,5-dinitrosalicylic methyl ester and bis-(hydroxypropyl)hydroxylamine.
Arhancet, Graciela. (1997). Compositions and methods for inhibiting vinyl aromatic monomer (U.S. Patent No. 5648572). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5648572
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile