Surfactant composition having stable hydrophilic character
First Claim
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1. A hydrophilic surface coated with a surfactant composition comprising:
- a nonionic surfactant component from about 0.2% to 0.6% selected from the group consisting of alkoxylated alkyl diol;
alkoxylated alkyacetylenic diol;
alkoxylated glycerin monoester of an alkyl alcohol;
alkoxylated glycerin monoester of an aralkyl alcohol;
alkoxylated alkyl alcohol;
polyalkoxylated aralkyl alcohol;
silicone copolyol;
polyethoxylated phenol;
a fatty acid ester of a polyalkoxylated diol;
a fatty acid ester of a polyalkoxylated triol, and polyalkoxylated perfluoroalkyl-containing surfactant;
a stabilizer component from about 0.05% to 0.5%; and
a solvent;
wherein the surfactant composition is dried on the surface;
wherein the surfactant composition free of the solvent when dried and coated on a substrate comprises the surfactant and stabilizer in a ratio of 0.2;
1 to 12;
1 wt/wt; and
wherein the hydrophilic characteristics indicated by a Spreading Drop Test retain at least 85% of the original spreading drop diameter after 3 weeks of aging at 23°
C. and 50% relative humidity.
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Abstract
Hydrophilic surfactant compositions are disclosed that include a surfactant component and a stabilizer component. The surfactant can be coated on a surface by depositing a surfactant solution on at least a portion of the surface, then drying the surfactant solution to form the dry coating. The surfactant compositions, when applied to a substrate, can provide a hydrophilic surface that retains its hydrophilic character over time, at elevated temperatures, or both.
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Citations
20 Claims
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1. A hydrophilic surface coated with a surfactant composition comprising:
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a nonionic surfactant component from about 0.2% to 0.6% selected from the group consisting of alkoxylated alkyl diol;
alkoxylated alkyacetylenic diol;
alkoxylated glycerin monoester of an alkyl alcohol;
alkoxylated glycerin monoester of an aralkyl alcohol;
alkoxylated alkyl alcohol;
polyalkoxylated aralkyl alcohol;
silicone copolyol;
polyethoxylated phenol;
a fatty acid ester of a polyalkoxylated diol;
a fatty acid ester of a polyalkoxylated triol, and polyalkoxylated perfluoroalkyl-containing surfactant;a stabilizer component from about 0.05% to 0.5%; and a solvent; wherein the surfactant composition is dried on the surface; wherein the surfactant composition free of the solvent when dried and coated on a substrate comprises the surfactant and stabilizer in a ratio of 0.2;
1 to 12;
1 wt/wt; and
wherein the hydrophilic characteristics indicated by a Spreading Drop Test retain at least 85% of the original spreading drop diameter after 3 weeks of aging at 23°
C. and 50% relative humidity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A coated article, comprising
a non-porous substrate; - and
a dried coating comprising a surfactant component and a stabilizer component in a ratio of 0.2;
1 to 12;
1 wt/wt wherein the hydrophilic characteristics indicated by the spreading drop diameter retain at least 85% of the original drop diameter after 3 weeks of aging at 23°
C. and 50% relative humidity;wherein the surfactant component is a nonionic surfacrant selected from the group consisting of alkoxylated alkyl diol;
alkoxylated alkyacetylenic diol;
alkoxylated glycerin monoester of an alkyl alcohol;
alkoxylated glycerin monoester of an aralkyl alcohol;
alkoxylated alkyl alcohol;
polyalkoxylated aralkyl alcohol;
silicone copolyol;
polyethoxylated phenol;
a fatty acid ester of a polyalkoxylated diol;
a fatty acid ester of a polyalkoxylated triol, and polyalkoxylated perfluoroalkyl-containing surfactant. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification