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US 2016/0032518 A1Published application
Soil Repellency, Aqueous Dispersions, Soil Repellant Soft Articles, and Methods of Making the Same
AssigneeInvista North America S.A.R.L.
InventorsIsaac Keene IVERSON, Martin August RUDAT
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Abstract
A soil repellency aqueous dispersion for treating various fibers, yarns, and textiles is disclosed. The dispersion provides superior soil resistance when compared to known fluorochemical and silicone fiber treatments. The dispersion comprises clay nanoparticle components and fluorochemicals that can be applied to the fibers, yarns, and textiles using known methods.
Claims23
An aqueous dispersion for soil repellency comprising:
- at least one clay nanoparticle component;
- and a fluorochemical, wherein said fluorochemical is selected from the group consisting of fluorochemical allophanates, fluorochemical polyacrylates, fluorochemical urethanes, fluorochemical carbodiimides, and fluorochemical guanidines and wherein said fluorochemical has less than or equal to six fluorinated carbons per fluorinated side-chain, and wherein said at least one clay nanoparticle component is selected from the group consisting of montmorillonite, hectorite, saponite, nontronite, beidellite and combinations thereof.
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A method of making a soil repellency aqueous dispersion comprising:
- a) contacting at least one clay nanoparticle component with a solvent to form an aqueous clay nanoparticle solution, wherein said at least one clay nanoparticle component is selected from the group consisting of montmorillonite, hectorite, saponite, nontronite, beidellite and combinations thereof;
- and
- b) contacting said aqueous clay nanoparticle solution with a fluorochemical to form said soil repellency aqueous dispersion, wherein said fluorochemical is selected from the group consisting of:
- fluorochemical allophanates, fluorochemical polyacrylates, fluorochemical urethanes, fluorochemical carbodiimides, and fluorochemical guanidines.
1 more element
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Dependencies are inferred from the claim text.