HEAT-SHIELDING COATING MATERIAL, HEAT-SHIELDING LAMINATED COATING FILM, AND COATED PRODUCT

• Main Authors: UMEZAKI NAOTO, HITOMI ISAO, MIYAMOTO KAZUAKI
• Format: Patent
• Language: English; Japanese
• Published: 22.02.2018
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide a heat-shielding coating material and the like, excellent in heat shielding and masking effect.SOLUTION: A heat-shielding coating material comprises large-diameter titanium oxide having a particle diameter of 0.4 to 2.5 μm and small-diameter titanium oxide having a particle diameter of 0.15 μm or more and less than 0.4 μm at a weight ratio of 4:6 to 6:4. Preferably, the coating material further contains hollow particles having a particle diameter of 30 to 300 μm. Preferably, the hollow particles for use are made of acrylonitrile resin, and the content thereof is 0.2 to 5 wt% in the solid content of the coating material. From the viewpoint of weather resistance, preferably an acrylic silicone resin is used as binder resin.SELECTED DRAWING: None 【課題】遮熱性および隠蔽性に優れた遮熱塗料などを提供することを目的とする。【解決手段】粒子径が０．４〜２．５μｍの大径酸化チタンと、粒子径が０．１５μｍ以上０．４μｍ未満の小径酸化チタンを、重量比で４：６〜６：４の割合で含む遮熱塗料とした。このとき、粒子径が３０〜３００μｍの中空粒子をさらに含むことが好ましい。中空粒子としては、アクリルニトリル系樹脂からなるものを用いて、塗料固形分中に０．２〜５重量％含有させることが好ましい。また、耐候性の面からは、バインダー樹脂としてアクリルシリコーン系樹脂を用いることが好ましい。【選択図】なし