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:
Sep. 07, 1976
Filed:
Aug. 25, 1972
Applicant:
Inventors:
Andrew K Schwartz, Jr, Houston, TX (US);
Stone D Cooley, Houston, TX (US);
Assignee:
Petro-Tex Chemical Corporation, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ; 2605 / ; 2603 / ;
Abstract
Preparation of esters of maleic acid with monohydric alcohol by forming maleic anhydride by oxidizing a hydrocarbon in a maleic anhydride reaction, scrubbing the gaseous effluent to form aqueous maleic solution which is reacted and dehydrated in a first stage with monohydric alcohol in a distillation column. Reacting the product of the first stage under pressure and under conditions such that boiling occurs.