Fluoroalkyl silanes are a class of compounds useful for various industrial purposes. For example, fluoroalkyl silanes which have hydrolysable groups (called hydrolysable fluoroalkyl silanes), are compounds useful as surface treatment agents which provide durable hydrophobic and oleophobic coatings. In general, hydrolysable fluoroalkyl silanes can be represented with the following formula: (RO—)
3
Si—R
T
wherein R is H or an alkyl; and R
T
is a monovalent organic compound terminated by a perfluoroalkyl group. When used to coat a surface, the (RO—)
3
moiety reacts (via hydrolysis) with various chemical groups of the surface (e.g., hydroxyl, amine, or other reactive groups) thereby bonding the fluoroalkyl silane to the surface The R
T
moiety comprises a divalent organic linking group which links the silicon atom to a terminal group rich in fluorine atoms whose unique electronic properties impart desirable hydrophobic and oleophobic properties in a surface coating. Modification of the R
T
moiety is useful in the engineering of fluoroalkyl silanes. The present invention provides for fluoroalkyl silanes having R
T
moieties which have not been heretofore considered.
[EN] MIXTURE OF POLYFLUOROALKYLSULFONAMIDO ALKYL AMINES<br/>[FR] MÉLANGE DE POLYFLUOROALKYLSULFONAMIDOALKYLAMINES
申请人:DU PONT
公开号:WO2011119560A1
公开(公告)日:2011-09-29
The present invention relates to a mixture of polyfluoroalkylsulfonamido alkyl amines including at least one polyfluoroalkylsulfonamido alkyl amine and its analog, a di(polyfluoroalkylsulfonamido alkyl) amine. The invention also relates to polyfluoroalkylsulfonamido alkyl halide intermediate used to make the aforementioned mixture.
The present invention relates to a polyfluoroalkylsulfonamido alkyl halide intermediate. The invention also relates to the use of the aforementioned halide intermediate to prepare a mixture of polyfluoroalkylsulfonamido alkyl amines including at least one polyfluoroalkylsulfonamido alkyl amine and its analog, a di(polyfluoroalkylsulfonamido alkyl) amine.