Disclosed are a heat-ray shielding composition including an indium tin oxide powder which has a BET specific surface area of 40 m
2
/g or more and a navy blue or cobalt blue (L=30 or less, a<0, b<0 in the Lab colorimetric system) tone, and preferably a heat-ray shielding composition, wherein the indium tin oxide powder contained in the composition is an indium tin oxide powder which is surface-modified by firing indium tin hydroxide having bright yellow to persimmon (reddish brown or orange-red) tone, or an indium tin oxide powder which is surface-modified by firing indium tin oxide having bright yellow to persimmon (reddish brown or orange-red) tone; and a method for producing the same.
本发明涉及一种热辐射屏蔽组合物,包括一种具有BET比表面积为40 m2/g或更大且在Lab色度测量系统中具有海军蓝或
钴蓝色调(L≤30,a<0,b<0)的氧化铟锡粉末。更好的是,本发明提供了一种热辐射屏蔽组合物,其中所含的氧化铟锡粉末是通过烧结具有明亮的黄色至柿子橙(红棕色或橙红色)色调的氢氧化铟锡或氧化铟锡表面改性的氧化铟
锡粉末;以及其制备方法。