COIL-COATED SPECTRALLY SELECTIVE COATINGS ON COPPER OR ALUMINUM WITH PIGMENTS MODIFIED BY AMINOSILANE
The invention relates to TSSS and TISS coatings applied by coil-coating onto substrates of copper or aluminum. Inorganic pigments functionalized by aminosilane are used for making paints, which after the coil-coating onto the substrate form the coatings. For the functionalization the pigment is dispersed in a solution of an aminosilane in a solvent or a mixture of a solvent and a binder without an addition of a non-aminosilane dispersing agent with or without subsequent grinding and use of 0.05-30% of aminosilane on pigment. An aromatic, aliphatic, cycloaliphatic, ketone, ester, ether or alcohol compound or a mixture thereof can be used as the solvent. A silicone-polyester, polyurethane or fluoropolymer can be used as the binder.
1 - 11 . (canceled)
12 . A TSSS coating for use on copper or aluminum applied by coil-coating and having a solid matter content of:
an inorganic pigment functionalized by an aminosilane in an amount of 30-75%,
a binder in an amount of 25-70%,
other pigments in an amount of 0-40%,
fillers in an amount of 0-30%,
additives in an amount of 0-10%,
wherein for the functionalization of the inorganic pigment by the aminosilane, the inorganic pigment is dispersed in a solution of the aminosilane in a solvent or a mixture of the solvent and the binder,
without an addition of a non-aminosilane dispersing agent,
wherein the functionalization of the inorganic pigment is performed in one of;
in-situ during coating, or during production of a pigment paste, or followed by an isolation of the aminosilane functionalized pigment.
13 . The TSSS coating according to claim 12 wherein the additive is a rheological additive.
14 . The TSSS coating according to claim 12 wherein the functionalization of the inorganic pigment is with subsequent grinding and use of 0.05-30% of the aminosilane functionalized pigment.
15 . The TSSS coating according to claim 12 wherein the solvent comprises an aromatic, aliphatic, cycloaliphatic, ketone, ester, ether or alcohol compound, or a mixture thereof.
16 . The TSSS coating according to claim 12 wherein the binder comprises a silicone-polyester, polyurethane, or fluoropolymer binder.
17 . The TSSS coating according to claim 12 , prepared by forming a pigment paste, the pigment paste having a solid matter content of:
the pigment functionalized by aminosilane in an amount of 30-90%,
a binder in an amount of 7-70%, and
additives in an amount of 0-10%.
18 . The TSSS coating according to claim 12 further comprising the use of a silicon-polyester polymer or a polyurethane or a fluoropolymer, or a mixture thereof as the binder.
19 . The TSSS coating according to claim 12 further comprising its use for solar energy exploitation.
20 . The TSSS coating according to claim 12 further comprising by the coating having a spectral selectivity of a S ≧0.90 solar absorbance, and by a thermal emittance of e T ≦0.20.
21 . The TSSS coating according to claim 12 wherein the coating is a coil-coating applied by rollers.
22 . The TSSS coating according to claim 12 wherein the coating is a coil-coating applied by one or more slot dies.
23 . The TSSS coating according to claim 12 applied to a coil of copper or aluminum.
24 . A TISS coating for use on copper or aluminum applied by coil-coating and having a solid matter content of:
an inorganic pigment functionalized by an aminosilane in an amount of 5-70%,
metal flakes in an amount of 10-50%,
other pigments in an amount of 0-40%,
a binder in an amount of 25-70%,
fillers in an amount of 0-30%,
additives in an amount of 0-10%,
wherein for the functionalization of the inorganic pigment by the aminosilane, the pigment is dispersed in a solution of the aminosilane in a solvent, or a mixture of the solvent and the binder,
without an addition of a non-aminosilane dispersing agent,
whereas the functionalization of the inorganic pigment is performed in-situ during coating, or during production of a pigment paste, or followed by an isolation of the aminosilane functionalized pigment.
25 . The TISS coating according to claim 24 , wherein the functionalization of the inorganic pigment occurs with subsequent grinding and use of 0.05-30% of the aminosilane functionalized pigment.
26 . The TISS coating according to claim 24 , further comprising use of an aromatic, aliphatic, cycloaliphatic, ketone, ester, ether or alcohol compound, or a mixture thereof as the solvent.
27 . The TISS coating according to claim 24 , further comprising use of a silicone-polyester, polyurethane, or fluoropolymer as the binder.
28 . The TISS coating according to claim 24 , prepared by use of the pigment paste, the pigment paste having a solid matter content of:
the pigment functionalized by aminosilane in an amount of 0-90%,
a binder in an amount of 7-70%, and
additives in an amount of 0-10%.
29 . The TISS coating according to claim 28 wherein the additive is a rheological additive.
30 . The TISS coating according to claim 24 further comprising the use of coated metal flakes.
31 . The TISS coating according to claim 24 further comprising the use of a silicon-polyester polymer.
32 . The TISS coating according to claim 24 further comprising the use of a polyurethane or a fluoropolymer as the binder.
33 . The TISS coating according to claim 24 further comprising by its use for solar energy exploitation.
34 . The TISS coating according to claim 24 further comprising by a spectral selectivity of a S ≧0.90 solar absorbance and by a thermal emittance of e T ≦0.20.
35 . The TISS coating according to claim 24 wherein the coil-coating is a coil-coating applied by rollers.
36 . The TISS coating according to claim 24 wherein the coil-coating is applied by one or more slot dies.
37 . The TISS coating according to claim 24 applied to a coil of copper or aluminum.