Patent ID: 6221429
Filing Date: 2001-04-24
Classification: C08L

Abstract:
A process for making and applying a powder coating having controlled gloss properties, said method comprising:(a) providing a powder coating product prepared by physically blending a mixture of:(i) a resin consisting essentially of from 60 to 90 wt. % of at least one fluorine-based terpolymer having a melting point less than 150.degree. C. and from 40 to 10 wt. % of at least one compatible thermoplastic acrylic resin physically mixed with said terpolymer to provide a product which has temperature-dependent gloss characteristics in which the product, when baked on a substrate surface at a variable temperature within the range of 140-220.degree. C., produces a gloss when measured in accordance with ISO-2813 at an angle of 60.degree., which is inversely proportional to temperature when baked on a substrate surface over a temperature interval within the range of 140.degree. C.-220.degree. C.(b) applying the powder coating product of Paragraph (a) to a substrate surface; and(c) baking the powder coating product on the substrate surface of Paragraph (b) at a designated baking temperature and selecting said designated baking temperature at a value within said temperature interval to produce a selected gloss.