Coating composition, coating film, and method of reducing underwater friction
AssigneeNippon Paint Co., Ltd.
InventorsYoshifumi Ichinose, Isamu Onishi, Naoki Yamamori, Kazuaki Masuda
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Abstract
It is an object of the present invention to provide a coating composition which can attain low friction performance without impairing the functions of a conventional coating composition, a coated film formed by using the same and a method of reducing friction in water. A coating composition containing an organic polymer particle, wherein said organic polymer particle has the solubility at 23° C. in the artificial seawater specified in ASTM D1141-98 of 15 g/liter or less, the water-absorbing amount for the artificial seawater specified in ASTM D1141-98 of 0.01% by mass or more and a particle diameter of 0.05 to 100 μm.
Claims18
A coating composition for a vessel bottom comprising:
- a resin binder containing a hydrolyzable resin;
- an organic solvent;
- and
- an organic polymer particle dispersed in said organic solvent;
- wherein said organic polymer particle has the solubility at 23° C. in the artificial seawater specified in ASTM D1141-98 of 15 g/liter or less, the water-absorbing amount for the artificial seawater specified in ASTM D1141-98 of 0.01% by mass or more and a particle diameter of 0.05 to 100 μm, and wherein the organic polymer particle has a cationic group.
A coating composition for a vessel bottom comprising:
- a resin binder containing a hydrolyzable resin;
- an organic solvent;
- and
- an organic polymer particle dispersed in said organic solvent;
- wherein said organic polymer particle has the solubility at 23° C. in the artificial seawater specified in ASTM D1141-98 of 15 g/liter or less, the water-absorbing amount for the artificial seawater specified in ASTM D1141-98 of 0.01% by mass or more and a particle diameter of 0.05 to 100 μm, and wherein said organic polymer particle is a composite resin particle consisting of a hydrophilic resin and an acrylic resin.
A coating composition for a vessel bottom comprising:
- a resin binder containing a hydrolyzable resin;
- an organic solvent;
- and
- an organic polymer particle dispersed in said organic solvent;
- wherein said organic polymer particle has the solubility at 23° C. in the artificial seawater specified in ASTM D1141-98 of 15 g/liter or less, the water-absorbing amount for the artificial seawater specified in ASTM D1141-98 of 0.01% by mass or more and a particle diameter of 0.05 to 100 μm, and wherein the organic polymer particle is a nature-derived polymer having a crosslinking chain or at least one hydrophilic functional group selected from the group consisting of hydroxyl group, amino group, carboxyl group, amide group and polyoxyethylene group.
A coating composition for a vessel bottom comprising:
- a resin binder containing a hydrolyzable resin;
- an organic solvent;
- and
- an organic polymer particle dispersed in said organic solvent;
- wherein said organic polymer particle has a particle diameter of 0.05 to 100 μm, and wherein said organic polymer particle is at least one species of an organic polymer particle selected from the group consisting of chitin, chitosan, γ-PGA, pulverized silk and derivatives thereof.
Dependencies are inferred from the claim text.