- Perfluorinated esters of fumaric acid and certain other ethylenically unsaturated poly-basic acid and soil repellant polymers thereof
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Monomeric esters of fumaric, maleic, citraconic, mesaconic, itaconic, aconitic, or methylene malonic acid and alcohols of the formula Cm F2m+1 Cn H2n OH and mercaptans of the formula Cm F2m+1 Cn H2n SH form homopolymers and form copolymers with other ethylenically unsaturated comonomers. The polymers obtained have valuable soil repellent properties and are especially useful in textile finishes. Preferred compounds are bis (1,1,2,2-tetrahydroperfluorononyl) fumarate and bis (1,1-dihydroperfluorooctyl) fumarate.
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- Perfluoroalkyl alcohols
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Perfluoroalkyl group containing alcohols are disclosed with utility as intermediates for the synthesis of oil and water repellent fluorochemicals. The alcohols are obtained by the addition of mercaptoalcohols to perfluoroalkyl group containing esters of fumaric, maleic, citraconic, mesaconic, itaconic, methylene malonic or aconitic acids.
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