Perfluorinated polymers
Amorphous perfluorinated homopolymers and copolymers of perfluorodioxoles of formula (IA): wherein R'F is equal to RF or ORF wherein RF is a linear or branched perfluoroalkyl radical having 1-5 carbon atoms; X1 and X2, equal to or different from each other, are F, CF3; said polymers having a di...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
21.06.2007
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Subjects | |
Online Access | Get full text |
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Summary: | Amorphous perfluorinated homopolymers and copolymers of perfluorodioxoles of formula (IA): wherein R'F is equal to RF or ORF wherein RF is a linear or branched perfluoroalkyl radical having 1-5 carbon atoms; X1 and X2, equal to or different from each other, are F, CF3; said polymers having a dioxole content >=95% by moles, having the following property combination: Tg, measured according to the ASTM 3418 (DSC) method, from 180° C. to 195° C.; intrinsic viscosity, measured at the temperature of 30° C. in perfluoroheptane (Galden(R) D80) according to the ASTM D 2857-87 method, from 13 cc/g to 100 cc/g. |
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Bibliography: | Application Number: US20070705404 |