Article and comprising fluorochemical surface layer
The invention relates to articles such as protective films and displays having a fluorochemical surface layer comprising an antistatic agent and the reaction products of at least one fluoropolyether (meth)acryl compound and at least 50 wt-% of non-fluorinated crosslinking agent(s).
1. An article comprising:
a) a light transmissive substrate having a surface layer comprising an antistatic agent and the reaction product of
i) at least one fluoropolyether (meth)acryl compound comprising at least one terminal F(CF(CF 3 )CF 2 O)aCF(CF 3 )— group and at least two (meth)acryl groups wherein a averages from 4 to 15, and
ii) at least 50 wt-% of non-fluorinated crosslinking agent(s); and
b) a hardcoat layer disposed between the substrate and the surface layer, wherein the hardcoat comprises inorganic particles dispersed in a binder comprising one or more free-radically polymerized monomers, oligomers, or polymers.
2. The article of claim 1 wherein the antistatic agent comprises a conductive polymer.
3. The article of claim 1 wherein the substrate is a transparent or matte polymeric film.
4. The article of claim 1 wherein the surface layer exhibits a static contact angle with water of at least 90°.
5. The article of claim 1 wherein the surface layer exhibits an advancing contact angle with hexadecane of at least 60°.
6. The article of claim 1 wherein the surface layer exhibits ink repellency after 200 wipes with cheesecloth and a weight of 725 grams according to the Durability Test.
7. The article of claim 1 wherein the surface layer exhibits ink bead up after 500 wipes with cheesecloth and a weight of 725 grams according to the Durability Test.
8. The article of claim 1 wherein the surface layer has a thickness ranging from about 10 to 200 nanometers.
9. The article of claim 8 wherein the surface layer exhibits an initial haze of less than 2%.
10. The article of claim 8 wherein the surface layer exhibits an initial transmission of at least 90%.
11. The article of claim 1 wherein the substrate has a major surface opposing the surface layer and an adhesive layer is disposed on the opposing major surface.
12. The article of claim 1 wherein the fluoropolyether (meth)acryl compound is a mixture of at least one monofunctional compound and at least one polyfunctional compound.
13. The article of claim 1 wherein the surface comprises the reaction product of the at least one fluoropolyether (meth)acryl compound and at least 60 wt-% of one or more non-fluorinated crosslinking agents.
14. The article of claim 1 wherein the surface comprises the reaction product of the at least one fluoropolyether (meth)acryl compound and at least 80 wt-% of one or more non-fluorinated crosslinking agents.
15. The article of claim 1 wherein the hardcoat layer has a thickness of 1 to 100 microns.
16. The article of claim 1 wherein the inorganic particles are acrylate functionalized.
17. The article of claim 1 wherein the antistatic agent comprises a conductive polymer.
18. The article of claim 1 wherein the antistatic agent comprises a conductive polymer.
19. A display panel comprising:
a) a light transmissive substrate having a surface layer comprising an antistatic agent and the reaction product of
i) at least one fluoropolyether (meth)acryl compound comprising at least one terminal F(CF(CF 3 )CF 2 O)aCF(CF 3 )— group and at least two (meth)acryl groups wherein a averages from 4 to 15, and
ii) at least 50 wt-% of non-fluorinated crosslinking agent(s); and
b) a hardcoat layer disposed between the substrate and the surface layer wherein the hardcoat comprises inorganic particles dispersed in a binder comprising one or more free-radically polymerized monomers, oligomers, or polymers.
20. The display panel of claim 19 wherein the article is selected from a touch screen, a liquid crystal display panel, a plasma display panel, a television screen, a computer screen, and an instrument display panel.
21. An article comprising a substrate having a surface layer comprising an antistatic agent and the reaction product of at least one fluoropolyether (meth)acryl compound comprising at least one terminal F(CF(CF 3 )CF 2 O)aCF(CF 3 )— group wherein a averages from 4 to 15 and at least two (meth)acryl groups, and at least 50 wt-% of non-fluorinated crosslinking agent(s); and a hardcoat layer disposed between the substrate and the surface layer wherein the hardcoat comprises inorganic particles dispersed in a binder comprising one or more free-radically polymerized monomers, oligomers, or polymers.