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. 10, 2016
Filed:
Dec. 04, 2013
Applicant:
Solvay Specialty Polymers Italy S.p.a., Bollate, IT;
Inventors:
Pier Antonio Guarda, Arese, IT;
Gianfranco Spataro, Lissone, IT;
Assignee:
SOLVAY SPECIALTY POLYMERS ITALY S.P.A., Bollate (Milano), IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/08 (2006.01); C07C 41/18 (2006.01); C08G 65/26 (2006.01); C08G 65/00 (2006.01); C08G 65/331 (2006.01); C08G 65/328 (2006.01);
U.S. Cl.
CPC ...
C07C 41/18 (2013.01); C08G 65/007 (2013.01); C08G 65/2609 (2013.01); C08G 65/2654 (2013.01); C08G 65/2687 (2013.01); C08G 65/2696 (2013.01); C08G 65/328 (2013.01); C08G 65/331 (2013.01); C08G 2650/48 (2013.01);
Abstract
A convenient process for the manufacture of alkoxylated derivatives of PFPE alcohols is herein provided. The process envisages the use of a boron-based catalyst and an iodine source and is characterized in that a PFPE alkoxide is prepared separately, contacted with a boric acid triester of the same PFPE alcohol and finally submitted to alkoxylation in the presence of an iodine source. The process allows achieving an alkoxylation degree of at least 2 with high yields and under conditions that are convenient on an industrial scale.