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. 12, 1998
Filed:
Aug. 28, 1996
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munchen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C08G / ;
U.S. Cl.
CPC ...
548165 ; 548221 ; 548259 ; 548542 ; 549285 ; 560-9 ; 560 17 ; 560 23 ; 560 44 ; 560 84 ; 560 85 ; 560 86 ; 560 87 ; 560 88 ; 560 95 ; 560 98 ; 564139 ; 528176 ; 528182 ; 528208 ; 528335 ;
Abstract
The dicarboxylic acid derivatives according to the invention have the following structure ##STR1## wherein X denotes O, S, (CF.sub.2).sub.m, C(CF.sub.3).sub.2 or CF.sub.2 --CF(CF.sub.3) (m=1 to 10), and R stems from the following compounds: fluoro- or trifluoromethyl- and nitro- or cyanophenols, thiophenols or -aminobenzenes, 4-hydroxy-, 4-mercapto- or 4-aminocoumarins, N-hydroxysuccinimides or N-hydroxymaleimides, 2-hydroxy- or 2-mercaptobenzoxazoles or -benzothiazoles and 1-hydroxy- or 1-mercaptobenzotriazoles.