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:
Jun. 13, 1995
Filed:
Jan. 27, 1994
Applicant:
Inventors:
Assignee:
Montefibre S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
203 38 ; 203 60 ; 203 71 ; 203 91 ; 568871 ;
Abstract
A process for recovering column bottom residues produced by distillation of ethylene glycol resulting from an aromatic polyester production process, involving treating the residues with an aromatic mono-alkyl ester and distilling the reaction product.