Perfluorodiacylperoxides as Polymerization Iniziators
EP: 1238988 B1
Date: Jan. 12, 2005
Inventors: W. Navarrini, M. Galimberti
published January 12, 2005
published July 20, 2004
alfa-Branched Perfluorodiacyl Peroxides: Preparation and Characterization
14th ESFC – Poznan 2004
PDF VERSION
published February 2, 2004
New perfluorovinylethers through the bis(fluoroxy)difluoromethane (BDM) chemistry
Author(s): Navarrini, W; Corti, S.
Source: JOURNAL OF FLUORINE CHEMISTRY
Volume: 125 Issue: 2 Pages: 189-197
DOI: 10.1016/j.jfluchem.2003.07.011 Published: FEB 2 2004
ABSTRACT:
In the present work we give an overview of the CF2(OF)(2) radical reactivity and report the synthesis of new perfluorovinylethers. CF2=CF-OCF2OCF2CF3 and CF2=CF-OCF2OCF2CF2OCF3 are prepared in a semi-continuous methodology starting from CF2(OF)(2). These highly reactive vinylethers are characterized by the OCF2O group directly bonded to the insaturation. For this reason they are excellent candidates for the preparation of very low T-g perfluororubbers.
http://www.sciencedirect.com/science/article/pii/S0022113903002732
published October 9, 2001
Hydro-Fluoroalkylvinylethers and Process for Obtaining Them
US Patent: 6300526 B1
Date: Oct. 9, 2001
Inventors: W. Navarrini, A. Russo
published June 4, 1999
Organic hypofluorites and their new role in industrial fluorine chemistry
Author(s): Navarrini, W; Tortelli, V; Russo, A; Corti, S.
Source: JOURNAL OF FLUORINE CHEMISTRY
Volume: 95 Issue: 1-2 Pages: 27-39
DOI: 10.1016/S0022-1139(98)00296-6 Published: JUN 4 1999
ABSTRACT:
In this work a historical background of the synthesis and chemistry of fluorinated organic hypofluorites is given and some of the known applications of this class of compounds are reviewed. Recently, new industrial processes based on hypofluorite chemistry have been developed for the production of a variety of fluoromonomers. These processes are all based on the addition of hypofluorites having different structures to fluorinated olefins. Some mechanistic features of this key reaction are discussed, in terms of reactivity and stability of the intermediate primary radicals deriving from homolytic cleavage of the hypofluorite bond. Various aspects of these new processes are described and, in the light of these recent achievements, it is shown how hypofluorite chemistry has acquired great importance as a powerful and versatile methodology for the production of fluoromonomers of prominent industrial interest.
http://www.sciencedirect.com/science/article/pii/S0022113998002966
published May 11, 1999
Fluoroelastomeric Compositions
US Patent: 5902857
Date: May 11, 1999
Inventors: I. Wlassics, V. Tortelli, W. Navarrini, M. Albano
published May 26, 1998
Process for Preparing Fluoroxy-or Chloroxy-Perfluoroacylefluorides
US Patent: 5756841
Date: May 26, 1998
Inventors: D. D. Desmarteau, J. D. O. Anderson, W. Navarrini
published January 20, 1998
Floorinated Polymers and Copolymers Containing Cyclic Structures
US Patent: 5710345
Date: Jan. 20, 1998
Inventors: W. Navarrini, V. Tortelli, A. Zedda
published January 6, 1998
Phosphazene Derivatives and Use of Same as Stabilizers for Oils and Greases Based on Perfluoropolyethers
US Patent: 5705668
Date: Jan. 6, 1998
Inventors: P. Odello, W. Navarrini, R. D. Chambers, C. Corti
published July 15, 1997
Process for Preparing Perhaloethers from Perhaloolefins and New Perhaloethers so Obtained
US Patent: 5648560
Date: Jul. 15, 1997
Inventors: A. Marraccini, A. Pasquale, T. Fiorani, W. Navarrini
published July 8, 1997
Perfluorodioxoles, the Preparation Process Thereof, and Homopolymers and Copolymers Therefrom
US Patent: 5646223
Date: Jul. 8, 1997
Inventors: W. Navarrini, V. Tortelli, P. Colaianna, J. A. Abusleme
published February 11, 1997
Phosphazene Derivatives and Use of Same as Stabilizers for Oils and Greases Based on Perfluoropolyethers
US Patent: 5602270
Date: Feb. 11, 1997
Inventors: P. Odello, W. Navarrini, R. D. Chambers, C. Corti
published November 5, 1996
Perfluorodioxoles, the Preparation Process Thereof, and Homopolymers and Copolymers Obtained Therefrom
US Patent: 5571932
Date: Nov. 5, 1996
Inventors: W. Navarrini, V. Tortelli, P. Colaianna, J. A. Abusleme
published March 12, 1996
Perfluorodioxoles, the Preparation Process Thereof, and Homopolymers and Copolymers Obtained Therefrom
US Patent: 5498682
Date: Mar. 12, 1996
Inventors: W. Navarrini, V. Tortelli, P. Colaianna, J. A. Abusleme
published February 27, 1996
Perfluorodioxoles, the Preparation Process Thereof, and Homopolymers and Copolymers Obtained Therefrom
US Patent: 5495028
Date: Feb. 27, 1996
Inventors: W. Navarrini, V. Tortelli, P. Colaianna, J. A. Abusleme
