Continuous Powder Coating Method for Profiles Having Little or No Conductivity
AssigneeMathew A. McPherson
InventorKevin Stay
Life of this patent
Estimating the term…
Abstract
A process for applying an electrostatic coating to a profile in-line, the method including the steps of forming a profile, applying a primer composition to the profile, the primer composition including at least one halogen, halogen salt, halogen complex or mixture thereof and at least one carrier and electrostatically applying a coating composition while the primer composition is wet.
Claims24
A method for electrostatically coating a profile in-line formed by pultrusion or extrusion, the method comprising the steps of:
- providing at least one material selected from the group consisting of organic materials and composites thereof, fibers and composites thereof and poor metals and alloys thereof;
- forming a profile of said at least one material;
- applying a conductive primer composition to at least a portion of said profile, the primer composition comprising at least one member selected from the group consisting of halogens, halogen salts, halogen complexes and mixtures thereof in a liquid carrier;
- and
- applying an electrostatic coating to said at least a portion of said profile.
A method for electrostatically coating a profile off-line formed by pultrusion or extrusion, the method comprising the steps of:
- automatically transporting said profile from a pultruder or an extruder to a primer treating station;
- applying a conductive primer composition to at least a portion of said profile, the primer composition comprising at least one member selected from the group consisting of halogens, halogen salts, halogen complexes and mixtures thereof in a carrier;
- and
- applying an electrostatic coating to said at least a portion of said profile.
A method of making a pultruded fiber-reinforced polymer material, the method comprising the steps of:
- providing a fiber source;
- exposing said fiber source to a thermoset composition, a thermoplastic composition of mixture thereof to form a composite material;
- pultruding the composite through a die using pullers to form a profile;
- applying a conductive primer composition comprising at least one member selected from the group consisting of halogens, halogen salts, halogen complexes and mixtures thereof in a carrier to the profile;
- and
- electrostatically coating the profile.
Dependencies are inferred from the claim text.