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:
Mar. 08, 2005
Filed:
Aug. 06, 2001
Applicants:
Paulus Schmaus, Ludwigshafen, DE;
Werner Georg Metzger, Hessheim, DE;
Inventors:
Paulus Schmaus, Ludwigshafen, DE;
Werner Georg Metzger, Hessheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D003/34 ; C07C007/05 ; C07C007/20 ;
U.S. Cl.
CPC ...
Abstract
A process for the distillation of vinylaromatic monomers in the presence of 4-tert-butylcatechol (TBC) and oxygen, wherein no aromatic nitro or amino compound is present in any effective amount. The process is particularly suitable for destabilizing and purifying styrene which has been stabilized with 4-tert-butylcatechol (TBC) for transportation.
Quick Actions:
Schmaus, Paulus. (2005). Distillation of styrene (U.S. Patent No. 6863779). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6863779
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile