Back to results
US 10,472,488 B2Granted
Transparent resin composition and heat ray-shielding film
AssigneeSumitomo Osaka Cement Co., Ltd.
InventorsRyo Kikuta, Keisuke Maeda
Life of this patent
Estimating the term…
Abstract
Provided is a transparent resin composition having a higher heat ray-shielding effect that can particularly effectively shield light of a wavelength of 1,450 nm to 1,750 nm while ensuring a high visible light transmittance. The transparent resin composition contains a transparent resin-forming component and inorganic particles, in which the inorganic particles contain indium tin oxide (ITO) and have a color having an L* value of 30 or more and 55 or less and a b* value of −18 or more and −10 or less in the Lab color space.
Claims5
A transparent resin composition comprising:
- a transparent resin-forming component;
- and
- inorganic particles,
- wherein the inorganic particles contain indium tin oxide, whereas inorganic particles containing Sb-free F-doped tin oxide, hexaboride, or rhenium are excluded, and the inorganic particles have a color having an L* value of 30 or more and 55 or less and a b* value of −18 or more and −10 or less in a Lab color space, and
- in a case where volatile components of the transparent resin composition are removed and a measurement length is set to be 1 μm, a visible light transmittance is 80% or more, and a light transmittance is 10% or less at a wavelength of 1,450 nm to 1,750 nm.
2 more elements
A heat ray-shielding film comprising:
- a transparent resin-forming component;
- and
- inorganic particles,
- wherein the inorganic particles contain indium tin oxide, whereas inorganic particles containing Sb-free F-doped tin oxide, hexaboride, or rhenium are excluded, and the inorganic particles have a color having an L* value of 30 or more and 55 or less and a b* value of −18 or more and −10 or less in a Lab color space,
- a visible light transmittance is 70% or more,
- a light transmittance at a wavelength of 1,450 nm to 1,750 nm 10% or less, and
- a haze value is 5% or less.
4 more elements
Dependencies are inferred from the claim text.