Fluorine-containing copolymer

• Main Authors: TANAKA YOSHITO, OHYA AKIKO, ITO KENGO, IMOTO KATSUHIKO, YOSHIDA HIROTOSHI, IMAHORI YUJI, IIDA MAYUMI, KAWABE TAKUMA
• Format: Patent
• Language: Chinese; English
• Published: 04.12.2013
• Subjects: ADHESIVES; 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 BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

Provided are: a fluorine-containing copolymer with which a coating film with excellent self-repair properties with respect to scratches can be formed; and a paint composition that uses the fluorine-containing copolymer. The present invention is a solvent-soluble fluorine-containing copolymer that contains, (a) polymerized units based on fluorine-containing monomers, (b) polymerized units based on a vinyl ether or a vinyl ester (excluding those that have a hydroxyl group or a carboxyl group) that provide a homopolymer with a glass transition temperature of 25 DEG C or less, (c) polymerized units based on monomers (excluding those having a carboxyl group) having a hydroxyl group, and (d) polymerized units based on monomers (excluding those having a hydroxyl group) having a carboxyl group. The solvent-soluble fluorine-containing copolymer contains 8.0 to 40.0 mole percent of the polymerized units (b) with respect all of the polymerized units.