COATING COMPOSITION

• Main Authors: ENDO SEIJI, OTANI NORIAKI, MATSUNO YUKI
• Format: Patent
• Language: English; Japanese
• Published: 13.03.2024
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; CEILINGS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; FIXED CONSTRUCTIONS; FLOORS; FORMS; GENERAL BUILDING CONSTRUCTIONS; HANDLING BUILDING MATERIALS ON THE SITE; INKS; INSULATION OR OTHER PROTECTION OF BUILDINGS; 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; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; ROOFS; SCAFFOLDING; SHUTTERING; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WALLS, e.g. PARTITIONS; WOODSTAINS

To provide a coating composition from which a primer layer 6 excellent in adhesiveness can be obtained.SOLUTION: The primer layer 6 is obtained by applying the coating composition to a roof 2 and drying the coating composition. The coating composition contains: (1) a polymer containing an alkyl (meth)acrylate monomer unit in its main chain; and (2) a partial reaction product of a mixture containing an epoxy compound and an aminosilane compound. Preferably, the amount of the partial reaction product (2) is 1 pt.mass or more and 150 pts.mass or less based on 100 pts.mass of the polymer (1). Preferably, the ratio (Y/X) of the number (Y) of amino groups and/or imino groups of the aminosilane compound to the number (X) of epoxy groups of the epoxy compound is 0.2 or more and 1.5 or less.SELECTED DRAWING: Figure 2 【課題】接着性に優れたプライマー層６が得られうる、塗料組成物の提供。【解決手段】屋根２に塗料組成物が塗布され、この塗料組成物が乾燥することで、プライマー層６が得られる。この塗料組成物は、（１）その主鎖に（メタ）アクリル酸アルキルエステル単量体単位を含む重合体並びに（２）エポキシ化合物及びアミノシラン化合物を含む混合物の部分反応生成物を含む。好ましくは、１００質量の重合体（１）に対する、部分反応生成物（２）の量は、１質量部以上１５０質量部以下である。好ましくは、混合物における、エポキシ化合物が有するエポキシ基の数（Ｘ）に対する、アミノシラン化合物の有するアミノ基及び／又はイミノ基の数（Ｙ）の比（Ｙ／Ｘ）は、０．２以上１．５以下である。【選択図】図２