UV CURABLE COATING COMPOSITION, METHOD OF APPLYING THE SAME AND SUBSTRATE COATED THEREWITH
First Claim
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1. An UV curable coating composition, comprising an UV curable polyurethane acrylate having functionality greater than or equal to 6.
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Abstract
A high-hardness anti-steel wool UV curable coating composition comprises a high-functionality UV curable polyurethane acrylate. A method of coating a substrate with the high-hardness anti-steel UV curable coating composition and the substrate coated with the same are also provided.
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Citations
11 Claims
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1. An UV curable coating composition, comprising an UV curable polyurethane acrylate having functionality greater than or equal to 6.
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2. The UV curable coating composition according to claim 1, wherein the UV curable polyurethane acrylate has a number average molecular weight from 800 to 4000.
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3. The UV curable coating composition according to claim 1 or 2, wherein the UV curable polyurethane acrylate is selected from the group consisting of six-functionality aliphatic polyurethane acrylate, ten-functionality aliphatic polyurethane acrylate, and a mixture thereof.
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4. The UV curable coating composition according to any one of preceding claims, wherein the UV curable polyurethane acrylate comprises 5-50 wt % of six-functionality aliphatic polyurethane acrylate and 5-50 wt % of ten-functionality aliphatic polyurethane acrylate, based on the weight of the coating composition.
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5. The UV curable coating composition according to any one of preceding claims, wherein the six-functionality aliphatic polyurethane acrylate is a reaction product of isophorone diisocyanate and pentaerythritol triacrylate.
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6. The UV curable coating composition according to any one of preceding claims, wherein the ten-functionality aliphatic polyurethane acrylate is polymerized by isophorone diisocyanate monomers.
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7. The UV curable coating composition according to any one of preceding claims, further comprising 0.1-3 wt % of a fluorine-containing acrylic soil-repellent, based on the weight of the coating composition.
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8. A method of forming a coating on a substrate, comprising applying an UV curable coating composition to at least a portion of the substrate, wherein the UV curable coating composition comprises an UV curable polyurethane acrylate having functionality greater than or equal to 6.
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9. A coated substrate, comprising a substrate and an UV curable coating composition deposited on at least a portion of the substrate, wherein the UV curable coating composition comprises an UV curable polyurethane acrylate having functionality greater than or equal to 6.
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10. The coated substrate according to claim 9, wherein the substrate comprises a substrate formed from the group consisting of polymethyl methacrylate, polycarbonate, and polyethylene terephthalate.
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11. The coated substrate according to claim 9 or 10, wherein the substrate is a substrate useful for a display on board, a PET protective film and a display for computers and mobile phones.
Specification