FORMATION OF CLEAR FILM

• Main Authors: SHIGENO HARUHISA, KONZE HIROAKI, KINOSHITA MASAKATSU, HANAOKA MOTOYOSHI, YAMANAKA MASAHIKO
• Format: Patent
• Language: English
• Published: 07.03.1990
• Subjects: ADHESIVES; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

PURPOSE:To keep extremely stable protective capacity over a long period of time by applying clear paint composed of a fluorine-containing polymer to a top coat film through clear paint of an acrylic copolymer resin system according to a wet-on-wet system. CONSTITUTION:In painting a car body, clear paint composed of an acrylic copolymer resin is applied to a top coat film at first. Next, clear paint composed of a fluorine-containing polymer composed of a unit represented by formula I (wherein X is F or Cl and R1-R4 are H or a hydroxyalkyl group) is applied to said film according to a wet-on-wet system to form a clear film. As mentioned above, since an integral protective layer due to a clear layer having good close adhesiveness and a clear layer excellent in weatherability is formed on the top coat film, capacity stable over a long period of time is kept without performing maintenance such as waxing.