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:
Apr. 04, 2000
Filed:
Nov. 20, 1997
Applicant:
Inventor:
Long Y Chiang, Taipei, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564458 ; 568817 ;
Abstract
Polyorganofullerene and polyhydroxyorganofullerene derivatives have the respective formulas, F--(E).sub.n and F--(E).sub.n --(OH).sub.m, in which F is a fullerene core; E is a nucleophilic substituent; --OH is a hydroxy group; n is 2-30; and m is 1-20. Also disclosed is a method of preparing such polyorgano-fullerene and polyhydroxyorganofullerene derivatives using polynitrofullerenes or polycyclosulfated fullerenes as intermediates.