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:
May. 16, 1989
Filed:
Nov. 27, 1987
Applicant:
Inventors:
Kikuo Ataka, Ube, JP;
Masayoshi Oku, Ube, JP;
Assignee:
UBE Industries, Ltd., Ube, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
362474 ; 560 53 ; 560 59 ; 544102 ;
Abstract
There are disclosed 2,4,5-Trifluoro-3-hydroxybenzoic acid represented by the following formula (I): ##STR1## and a salt thereof and a process for preparing the same. Further, there is disclosed a process for preparing 3,5,6-trifluoro-4-hydroxyphthalic acid, which is employed for preparing the above compound.