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:
Jan. 10, 2006
Filed:
Jul. 31, 2003
Applicants:
Antonella Di Meo, Milan, IT;
Rosaldo Picozzi, Milan, IT;
Claudio Tonelli, Milan, IT;
Inventors:
Assignee:
Solvay Solexis S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/00 (2006.01); C07C 209/44 (2006.01); C07C 45/00 (2006.01); C07C 41/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for the perfluoropolyether preparation having reactive end groups —CHNH, —CHO, —CHOH, by reduction of the corresponding perfluoropolyethers having —CN, —COCl, —CHO end groups by using gaseous hydrogen in the presence of a catalyst constituted by Pd, Rh, or Ru, supported on solid metal fluorides, at a temperature from 20° C. to 150° C. and under a pressure between 1 and 50 atm.