Anti-fog coating composition, process, and article
AssigneeGeneral Electric Company
InventorMao Chen
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Abstract
An anti-fog coating composition comprises a silicone polymer or oligomer, a water dispersible polyurethane polymer or oligomer, and water. A process for forming an anti-fog film comprises applying the anti-fog coating composition to a substrate and coalescing the silicone and polyurethane compounds to form the film. In another embodiment, the process for forming the anti-fog film comprises applying the components of the anti-fog coating composition to a substrate and crosslinking the components to form the anti-fog film. The components generally include a polyol, an isocyanate, a catalyst, and a silicone polymer or oligomer.
Claims30
An anti-fog coating composition comprising a silicone compound free from a sulfonic acid functional group, a water dispersible polyurethane compound, and water.
A process for forming an anti-fog film on a substrate comprising
- applying an aqueous coating composition to the substrate, wherein the aqueous coating composition comprises a silicone compound free from a sulfonic acid group, a water dispersible polyurethane compound, and water;
- and
- coalescing the silicone compound and polyurethane compound to form a film on the substrate.
A glass or plastic article having an anti-fogging surface comprising:
- a glass or plastic substrate, and
- an anti-fog coating disposed on at least one surface of the substrate, the anti-fog coating comprising a silicone compound free of a sulfonic acid function group, a water dispersible polyurethane compound, and water.
A process for forming an anti-fog film, the process comprising:
- applying a coating composition to a substrate, wherein the coating composition comprises a silicone compound free from a sulfonic acid functional group, an isocyanate, a polyol and a catalyst;
- and
- crosslinking the coating composition to form the anti-fog film, wherein the crosslinking comprises heating the substrate to a temperature and for a time effective to form the film.
A glass or plastic article having an anti-fogging surface comprising:
- a glass or plastic substrate;
- and
- an anti-fog coating disposed on at least one surface of the substrate, the anti-fog coating comprising a crosslinked film formed from a silicone, an isocyanate, a polyol and a catalyst.
Dependencies are inferred from the claim text.