Mono- and polyamides of perfluoroalkyl-substituted...

C - Chemistry – Metallurgy – 07 – C

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C07C 233/38 (2006.01) C07C 237/22 (2006.01) C08G 18/38 (2006.01)

Patent

CA 2425160

Novel perfluoroalkyl-substituted mono-, di- and poly-amide compounds which are reaction products of a mono-, di- or polyamide of 60 to 2000 molecular weight with a perfluoroalkyl substituted unsaturated acid or its corresponding lower alkyl ester and optionally a non-fluorinated amino-reactive compound such as an acid, ester, anhydride, epichlorohydrin, isocyanate or urea, are useful as internally or externally applied paper sizes to impart oil and grease resistance to paper, and as oil proofing coatings on textiles, wood, masonry and the like, or as high-performance surface active agents.

L'invention concerne de nouveaux composés mono-, di- et polyamides à substitution perfluoroalkyle produits par réaction d'une mono-, di- ou polyamine, ayant un poids moléculaire compris entre 60 et 2000 et d'un acide insaturé à substitution perfluoroalkyle ou de son ester d'alkyle inférieur correspondant et éventuellement d'un composé non fluoré aminoréactif, tel qu'un acide, un ester, un anhydre, une épichlorhydrine, un isocyanate ou une urée. Ces composés sont destinés à être utilisés de façon interne ou externe sur du papier afin de lui conférer des propriétés de résistance à l'huile et aux graisses, sur des textiles afin de former des revêtement d'imperméabilisation à l'huile, sur du bois, de la maçonnerie et analogues, ou comme agents de surface très performants.

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