Patent ID: 8461250

Claim:
A powder composition, particularly for coating a metal substrate, comprising: a) about 70% to about 80%, by total weight of the composition, of a blend of polyesters comprising: i) about 57% to about 58%, by total weight of the blend of polyesters, of a first copolyester having a melting interval of about 162° C. to about 172° C., a glass transition temperature of about 25 to 28° C., a melting viscosity (at 190° C./2.16 kg) of about 650 Pa·s and a melting volume index MVR (at 190° C./2.16 kg) of about 16 cm 3 /10 min; ii) about 35% to about 36%, by total weight of the blend of polyesters, of a second copolyester having a melting interval of about 150° C. to about 160° C., a glass transition temperature of about 25 to 26° C., a melting viscosity (at 190° C./2.16 kg) of about 300 Pa·s and a melting volume index MVR (at 190° C./2.16 kg) of about 35 cm 3 /10 min; iii) about 7%, by total weight of the blend of polyesters, of a third copolyester having a melting interval of about 157° C. to about 167° C., a glass transition temperature of about 18 to 23° C., a melting viscosity (at 190° C./2.16 kg) of about 850 Pa·s and a melting volume index MVR (at 190° C./2.16 kg) of about 12 cm 3 /10 min; b) 0% to about 19.2%, by total weight of the composition, of an inorganic filler material; c) 0% to about 0.8%, by total weight of the composition, of a flow control agent; and d) 0% to about 10%, by total weight of the composition, of a dye pigment.