C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) C08K 5/06 (2006.01) C08K 5/19 (2006.01) C08L 71/02 (2006.01) D06M 15/576 (2006.01)
Patent
CA 2463557
Carpet protectants comprising an aqueous dispersion comprising A. a partially fluorinated urethane polymer having at least one urea linkage, which compound is the product of the reaction of: (1) at least one organic polyisocyanate containing at least three isocyanate groups; (2) at least one fluorochemical compound which contains per molecule (a) a single functional group having one or more Zerewitinoff hydrogen atoms and (b) at least two carbon atoms, each of which is attached to at least two fluorine atoms; and (3) water in an amount sufficient to react with from about 5% to about 60% of the isocyanate groups in said polyisocyanate; B. a non-fluorinated cationic surfactant; and C. a non- fluorinated nonionic surfactant are disclosed.
L'invention concerne des protectants de tapis qui comprennent une dispersion aqueuse contenant: a) un polymère d'uréthane fluoré présentant au moins une liaison urée, lequel composé est le résultat de la réaction de: 1) au moins un polyisocyanate organique contenant au moins trois groupes isocyanates; 2) au moins un composé fluoré contenant par molécule: i) un seul groupe fonctionnel comportant un ou plusieurs atomes d'hydrogène de Zerewitinoff, et ii) au moins deux atomes de carbone fixés chacun à au moins deux atomes de fluor; et 3) de l'eau en quantité suffisante pour réagir au contact d'environ 5 à 60 % des groupes isocyanates dans ledit polyisocyanate; b) un tensioactif cationique non fluoré; et c) un tensioactif non ionique non fluoré.
Fitzgerald Patrick Henry
Liu Andrew Hen
Murphy Peter Michael
Strickler Charles L.
E.i. Du Pont de Nemours And Company
Torys Llp
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