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:
Oct. 22, 2002
Filed:
Oct. 30, 2001
Applicant:
Inventors:
Alain Riondel, Forbach, FR;
Vladimir Chaplinski, Saint Avold, FR;
Assignee:
Atofina, Puteaux, FR;
Primary Examiner:
Int. Cl.
CPC ...
C07C 6/954 ; C07C / ;
U.S. Cl.
CPC ...
C07C 6/954 ; C07C / ;
Abstract
These compounds are represented by the formulae (Ia) and (Ib). To prepare them, in a first stage, p-xylylene dichloride is reacted with a compound (II) to produce a compound (III) and, in a second stage, the compound (III) thus obtained is reacted with a compound of formula (IVa) or (IVb), resulting in an aqueous solution of the compound (Ia) or (Ib) respectively, the water of which is removed, if appropriate.