METHOD FOR PRODUCING EMULSION COATING MATERIAL

• Main Authors: OHASHI FUMIHIKO, SAKURAI HARUKA, ARAI KENJI, SHIBAHARA ATSUSHI, NISHINO GENSAKU
• Format: Patent
• Language: English; Japanese
• Published: 02.11.2017
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide an emulsion coating material capable of forming a coating film excellent in hydrophilicity and stain resistance.SOLUTION: A method for producing an emulsion coating material includes: a step of mixing an aqueous solution of a silicon compound and an aqueous solution of an aluminum compound to prepare a suspension of precursor particles of an inorganic silicate polymer; a step of removing salt of a by-product from the suspension of the precursor particles of the inorganic silicate polymer; a step of subjecting the suspension of the precursor particles of the inorganic silicate polymer from which salt has been removed to a hydrothermal reaction to obtain a suspension of inorganic silicate polymer particles; and a step of mixing the suspension of the inorganic silicate polymer particles and resin emulsion.SELECTED DRAWING: Figure 1 【課題】親水性及び耐汚染性に優れる塗膜を形成することが可能なエマルション塗料を提供する。【解決手段】エマルション塗料の製造方法は、ケイ素化合物の水溶液と、アルミニウム化合物の水溶液を混合し、無機ケイ酸塩高分子の前駆体粒子の懸濁液を調製する工程と、無機ケイ酸塩高分子の前駆体粒子の懸濁液から副生成物の塩を除去する工程と、塩が除去された無機ケイ酸塩高分子の前駆体粒子の懸濁液を水熱反応させて、無機ケイ酸塩高分子粒子の懸濁液を得る工程と、無機ケイ酸塩高分子粒子の懸濁液と、樹脂エマルションを混合する工程を含む。【選択図】図１