Transparent cover light powder paint composition and preparation method thereof

• Main Authors: XIAN YINGHUI, LI HENGJIE, XIANG DAN, XIAN JIANGUANG, ZHANG YONGXIONG, LIU HONGBO
• Format: Patent
• Language: Chinese; English
• Published: 10.09.2008
• 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

The invention relates to a transparent finish powder coating compound and a preparation method thereof, wherein, the compound of the invention comprises curing agent (B) 10-30 percent, flatting agent (D) 0.1-5 percent, degasifying agent (E) 0-5 percent and light stabilizer (F) 0-5 percent. The invention is characterized in that: the invention also comprises a copolymer (A) 50-85 percent and modifying agent (C) 5-20 percent. The preparation method of the compound is as follows: the curing agent (B), the flatting agent (D), the degasifying agent (E), the light stabilizer (F), the copolymer (A) and the modifying agent (C) are mixed for three to five minutes; the mixed material is added into an extruding machine for melt extrusion, the temperature of a feeding section is between 90 and 110 DEG C, the temperature of a banburying section is between 105 and 130 DEG C, and the average detention time of the material does not exceed 50 seconds; an extruded liquid melt tablet is grinded in a grinding mill and passes thr