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:
Jan. 29, 2002
Filed:
Sep. 30, 1999
Applicant:
Inventor:
Muslim D. Shahid, Houston, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/20 ; B01D 3/34 ; C09K 1/518 ;
U.S. Cl.
CPC ...
C07C 7/20 ; B01D 3/34 ; C09K 1/518 ;
Abstract
The present invention provides compositions and methods inhibiting polymerization of vinyl aromatic compounds comprising a bisphenol compound and an oxidized p-phenylenediamine. In a specific, non-limiting embodiment, the polymerization of the vinyl aromatic compound styrene is inhibited by a composition comprising the bisphenol compound 4,4′-methylenebis(2,6-di-tert-butyphenol) and the oxidized p-phenylenediamine compound N-phenyl-N′-methyl-benzoquinonediimide.
Shahid, Muslim. (2002). Methods and compositions for inhibiting vinyl aromatic monomer polymerization (U.S. Patent No. 6342648). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6342648
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile