Coating fibrous substrates with fluoropolymer amphoteric polymer and surfactants
Patent 4595518 Issued on June 17, 1986. Estimated Expiration Date: 
September 11, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 11, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3378609 3462296 3736177 3748168 3816167 3854871 3869465 3923715 Fabrics treated with hybrid tetracopolymers and process Method of imparting nondurable soil release and soil repellency properties to textile materials InventorsAssigneeApplicationNo. 06/775105 filed on 09/11/1985US Classes:427/393.4, Antisoiling or water repellency increased252/8.62, Oil or water repellent or soil resistant or retardant427/389.9Textile or cellulose baseExaminersPrimary: Page, Thurman K.International ClassesD06N 3/00 (20060101)D06N 3/04 (20060101) AbstractProcess for imparting oil- and water-repellency to fibrous substrates, particularly polypropylene upholstery fabric, which comprises applying thereto an effective amount of a composition prepared by first combining one or more fluorocarbon dispersions or polyfluoroalkyl-containing polymeric latexes containing an anionic surfactant with a nonionic surfactant having an HLB of 15&#b1;3 and then with an amphoteric polymer in an amount sufficient to make the composition slightly cationic, thereby facilitating deposition of said composition to said substrate. An anionic surfactant-containing elastomeric latex may be added so as to impart abrasion resistance. | |
