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:
Aug. 11, 1998
Filed:
Dec. 23, 1996
Applicant:
Inventors:
Assignee:
Commissariat a l'Energie Atomique, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B / ; C07H / ; C07H / ;
U.S. Cl.
CPC ...
536103 ; 536124 ;
Abstract
The invention relates to substituted derivatives of per(3,6-anhydro)cyclodextrins, their preparation process and their use for the separation of ions. These derivatives comply with one of the formulas: ##STR1## in which the R.sup.1, which can be the same or different, represent H, a halogen, OH, OR.sub.2, OM, SH, SR.sup.2, OCOR.sup.2, NH.sub.2, NR.sup.2 R.sup.3, CONR.sup.2 R.sup.3, CONH.sub.2, CN, COOR.sup.2, COOH, OSO.sub.2 R.sup.2, N.sub.3 or R.sup.2, and n=5, 6 or 7, provided that all the R.sup.1 do not represent OH.