Fluroaliphatic dimer acid derivatives and use thereof
Assignee3M Innovative Properties Company
InventorsDirk M. Coppens, Richard J. Grant
Life of this patent
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Abstract
This invention relates to fluorochemical compositions, their preparation and their use as water- and oil-repellents, and substrates treated therewith. The fluorochemical composition comprises a mixture of fluorochemical compounds and/or polymers, each component having at least two fluoroaliphatic groups and a large hydrocarbon moiety such as derived from dimer acids, and the polymer having at least one fluoroaliphatic group and a plurality of said hydrocarbon moiety.
Claims17
An article comprising a substrate having at least a portion of at least one surface thereof treated with a fluorochemical composition having an acid value of from 0 to about 20, comprising a mixture of normally solid compounds which are fluoroaliphatic esters of dimer acids and/or trimer acids, each of the compounds having at least two fluoroaliphatic groups and a hydrocarbon moiety of at least 30 carbon atoms or having at least one fluoroaliphatic group and a plurality of said hydrocarbon moiety;
- to impart water and oil repellency thereto.
A method for imparting water and oil repellency to a substrate comprising the step of treating at least a portion of at least one surface of said substrate with a fluorochemical composition having an acid value of from 0 to about 20, comprising a mixture of normally solid compounds which are fluoroaliphatic esters of dimer acids and/or trimer acids, each of the compounds having at least two fluoroaliphatic groups and a hydrocarbon moiety of at least 30 carbon atoms or having at least one fluoroaliphatic group and a plurality of said hydrocarbon moiety.
Dependencies are inferred from the claim text.