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US 4,046,944 AGranted
Fluorinated condensation polymers and their use as soil release agents
AssigneeCiba-Geigy Corporation
InventorsKarl Friedrich Mueller, Robert A. Falk
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AssigneeCiba-Geigy Corporation
InventorsKarl Friedrich Mueller, Robert A. Falk
Estimating the term…
Fluorinated condensation polymers which are made up of a combination of Blocks I and II: ##STR1## In these structures R.sub.f is a branched or linear perfluoroalkyl or perfluorooxaalkyl group of 5-18 carbons, R.sup.3 is an aliphatic triradical of 2-50 carbon atoms selected from the group consisting of branched or straight chain alkylene, alkylenethioalkylene, alkyleneoxyalkylene and alkyleneiminoalkylene, R.sup.4 is hydrogen or methyl, D is the organic divalent radial of a diisocyanate, k is 8-100, m is an integer of 1 to 5, n is 1 or 2, and p is an integer of 1 to 5, Wherein Blocks I and II are combined in a ratio of at least about 15% to 70% by weight of Block I to 30% to 85% by weight of Block II. The blocks as defined are connected by urea linkages in the final product condensate. The polymer condensates of this invention are useful as coatings on textiles, glass, linoleum, leather, wood, tile, metals, plastics, and various materials. They are of particular use on textile materials as soil release agents, showing increased durability as compared to urethane-connected condensation block polymers.
A fluorinated condensation polymer having a chemical structure containing the units ##STR13## in the ratio of 15-70% by weight of the fluorinated units to 30-85% by weight of the non-fluorinated polyethyleneoxide units, wherein
A fluorinated condensation polymer having a chemical structure containing the units ##STR14## in the ratio of 15-70% by weight of the fluorinated units to 30-85% by weight of the non-fluorinated polyethyleneoxide units, wherein
A composition comprising water and 10 to 60% of a fluorinated condensation polymer having a chemical structure containing the units ##STR26## in the ratio of 15-70% by weight of the fluorinated units to 30-85% by weight of the non-fluorinated polyethyleneoxide units, wherein
A process of treating textiles, comprising the step of applying to a textile a composition comprising water and 10 to 60% of a fluorinated condensation polymer having a chemical structure containing the units ##STR28## in the ratio of 15-70% by weight of the fluorinated units to 30-85% by weight of the non-fluorinated polyethyleneoxide units, wherein
A soil-releasing textile, consisting essentially of textile fibers coated with a fluroinated condensation polymer having a chemical structure containing the units ##STR29## in the ratio of 15-70% by weight of the fluorinated units to 30-85% by weight of the non-fluorinated polyethyleneoxide units wherein
Dependencies are inferred from the claim text.