COMPOSITION FOR FLUORORESIN POWDER COATING MATERIAL

• Main Authors: ASAKAWA, AKIHIKO, YAMAUCHI, MASARU, MASUDA, SHO, UNOKI, MASAO
• Format: Patent
• Language: English; French; German
• Published: 22.06.2011
• 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

According to the invention, there is provided a composition for fluororesin powder coating material, which comprises the following particles (1) and the following particles (2), wherein the particles (1) and the particles (2) are different in their curing temperatures by at least 8°C, and the particles (1) and the particles (2) are substantially independently contained: The particles (1) are particles for fluororesin powder coating material comprising a fluororesin (A) having hydroxyl groups and a curing agent (±) having a functional group reactive to the hydroxyl groups; and the particles (2) are particles for fluororesin powder coating material comprising a fluororesin (A) having hydroxyl groups and a curing agent (±) having a functional group reactive to the hydroxyl groups, wherein the combination of the fluororesin (A) and the curing agent (±) is different from the combination in the particles (1); provided that here the curing temperature is meant for a temperature at which the heat generation peak based on the reaction between the functional groups of the curing agent (±) and the hydroxyl groups of the fluororesin (A) starts to rise by the differential scanning calorimetry (DSC) of the particles for fluororesin powder coating material.