Coating solution for forming a film for cutting off solar radiation and the film formed therefrom
AssigneeSumitomo Metal Mining Co., Ltd.
InventorsHiromitsu Takeda, Kayo Yabuki, Kenji Adachi
Life of this patent
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Abstract
A solution for forming a film having a high transmittance and a low reflectivity for visible light, a low transmittance for near infrared radiation, and a surface resistivity of at least 106 ohms/square. It contains fine particles of a hexaboride of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb, Lu, Sr or Ca, and fine particles of ITO or ATO in a weight ratio of from 0.1:99.9 to 90:10. Also disclosed is a film formed on at least one side of a resin film as a base, for cutting off solar heat radiation.
Claims12
A uniformly dispersed coating solution for forming a film for cutting off heat radiation which contains fine particles of at least one hexaboride and fine particles of tin-containing indium oxide (ITO) or antimony-containing tin oxide (ATO) in a weight ratio of from 0.1:99.0 to 15:85, said hexaboride being represented as XB6 where X is Y, LA, Ce, PR, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr or Ca and wherein said fine particles of hexaboride, ITO and ATO have a diameter of up to 200 nm.
A film for cutting off solar radiation which is formed by coating at least one side of a base with a uniformly dispersed solution containing fine particles of at least one hexaboride and fine particles of tin-containing indium oxide (ITO) or antimony-containing tin oxide (ATO) in a weight ratio of from 0.1:99.0 to 15:85, said hexaboride being represented as XB6 where X is Y, LA, Ce, PR, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr or Ca, said fine particles of at least one hexaboride and said fine particles of ITO or ATO having a diameter of up to 200 nm.
Dependencies are inferred from the claim text.