Composition and process for the protection of materials against spots or stains
AssigneePCUK Produits Chimiques Ugine Kuhlmann
InventorCharles L. L. Delescluse
Life of this patent
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Abstract
The invention relates to a composition for the protection of materials against contaminations, spots and stains. This liquid composition comprises by weight 0.1 to 1% of at least one fluorinated resin based on acrylic or methacrylic esters of fluorinated sulfonamido-alcohol, associated or not with non-fluorinated monomers, 0.4 to 10% of at least one adjuvant selected from aminoplast resins based on melamine, thermoplastic resins and waxes, and 89 to 99.5% of at least one organic solvent. Applied on materials such as walls, facades, monuments or sculptures in cement, bricks, concrete or stones and other construction elements, the composition according to the invention confers on the materials an excellent protection against natural or artificial contaminations.
Claims20
A substantially non-aqueous liquid composition for the protection of materials against comtaminations from spots and stains, which consists by weight of:
- (A) 0.1 to 1% of at least one fluorinated resin based on an acrylic or methacrylic ester of a fluorinated sulfonamide-alcohol and containing from 0 to 80% non-fluorinated monomers, said fluorinated sulfonamide-alcohol having the formula:
- ##STR6## in which Rf represents a perfluoroalkyl radical, A represents a direct bond or an alkylene bridge, B represents an alkylene bridge and R represents a hydrogen atom or an alkyl, cycloalkyl, hydroxyalkyl or aryl radical;
- (B) 0.4 to 10% of at least one adjuvant selected from aminoplast resins based on melamine, polyvinyl resins, epoxy resins, polyester resins, styrene resins, alkyd-urethane resins, phenolic resins and waxes;
- and
- (C) 89 to 99.5% of at least one organic solvent.
Dependencies are inferred from the claim text.