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Walter Navarrini, Vito Tortelli, Alessandro Zedda: Floorinated polymers and copolymers containing cyclic structures. Ausimont S P A, Watson Cole Stevens Davis PLLC, January 20, 1998: US05710345 (21 worldwide citation)

Polymers and copolymers of one or more fluorinated dienes of structure CFX.sup.1 .dbd.CX.sup.2 --O--CX.sup.3 X.sup.4 --O--CX.sup.2 .dbd.CX.sup.1 F, wherein X.sup.1 and X.sup.2 are F, Cl or H, and X.sup.3 and X.sup.4 are F or CF.sub.3, wherein said dienes essentially form cyclic repetitive units, the ...


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Walter Navarrini, Vito Tortelli, Pasqua Colaianna, Julio A Abusleme: Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers therefrom. Ausimont S p A, Bryan Cave, July 8, 1997: US05646223 (13 worldwide citation)

The invention relates to new thermoprocessable copolymers of tetrafluoroethylene constituted by perfluoromethylvinylether (0.5-13% by weight), a fluorinated dioxole (0.05-3%) and tetrafluoroethylene (difference to 100%), particularly useful for coating electric cables by melt extrusion. It relates a ...


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Ivan Wlassics, Vito Tortelli, Walter Navarrini, Margherita Albano: Fluoroelastomeric compositions. Ausimont S p A, Finnegan Henderson Farabow Garrett & Dunner, May 11, 1999: US05902857 (12 worldwide citation)

Curing systems for fluoroelastomers curable by peroxidic route which comprise bromine, optionally iodine, the bromine always being higher than iodine, comprising as essential elements:


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Walter Navarrini, Vito Tortelli, Alessandro Zedda: Fluorinated polymers and copolymers containing cyclic structures. Ausimont S p A, Watson Cole Stevens Davis P L L C, December 31, 1996: US05589557 (11 worldwide citation)

Polymers and copolymers of one or more fluorinated dienes of structure CFX.sup.1 .dbd.CX.sup.2 --O--CX.sup.3 X.sup.4 --O--CX.sup.2 .dbd.CX.sup.1 F, wherein X.sup.1 and X.sup.2 are F, Cl or H, and X.sup.3 and X.sup.4 are F or CF.sub.3, wherein said dienes essentially form cyclic repetitive units, the ...


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Walter Navarrini, Simonetta Fontana, Vittorio Montanari: Halogenated 1,3-dioxolanes. Ausimont S p A, Morgan & Finnegan, August 10, 1993: US05235074 (11 worldwide citation)

This invention process for preparing 1,3-dioxolanes of formula: ##STR1## wherein; X.sub.1, X.sub.2, X.sub.3 and X.sub.4, like or different from one another, represent F, Cl, Br, I, CF.sub.2 OSO.sub.2 F, SO.sub.2 F, C(O)F, H, perhaloalkyl or oxyperhaloalkyl radicals containing from 1 to 5 carbon atom ...


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Walter Navarrini, Vito Tortelli, Pasqua Colaianna, Julio A Abusleme: Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom. Ausimont S p A, Bryan Cave, March 12, 1996: US05498682 (10 worldwide citation)

The invention relates to new thermoprocessable copolymers of tetrafluoroethylene constituted by perfluoromethylvinylether (0.5-13% by weight), a fluorinated dioxole (0.05-3%) and tetrafluoroethylene (difference to 100%), particularly useful for coating electric cables by melt extrusion. It relates a ...


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Walter Navarrini, Simonetta Fontana, Vittorio Montanari: Process for preparing halogenated 1,3-dioxolanes. Ausimont S p A, Morgan & Finnegan, July 6, 1993: US05225576 (10 worldwide citation)

This invention relates to a process for preparing 1,3-dioxolanes of formula: ##STR1## wherein; X.sub.1, X.sub.2, X.sub.3 and X.sub.4, like or different from one another, represent F, Cl, Br, I, CF.sub.2 OSO.sub.2 F, SO.sub.2 F, C(O)F, H, perhaloalkyl or oxyperhaloalkyl radicals containing from 1 to ...


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Walter Navarrini, Vito Tortelli, Pasqua Colaianna, Julio A Abusleme: Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom. Ausimont S p A, Bryan Cave, February 27, 1996: US05495028 (9 worldwide citation)

The invention relates to new thermoprocessable copolymers of tetrafluoroethylene constituted by perfluoromethylvinylether (0.5-13% by weight), a fluorinated dioxole (0.05-3%) and tetrafluoroethylene (difference to 100%), particularly useful for coating electric cables by melt extrusion. It relates a ...