PARTIALLY COATED FASTENER ASSEMBLY AND METHOD FOR COATING

• Main Authors: TUPEK, GARRY F, BERGSTROM, DONALD E, HICKS, PAUL L, MCDONALD, DANIEL P, LAT, GERONIMO E, KRAM, GUENTHER, SCHNIEDERMEIER, HENRY W, GRAY, HAROLD D
• Format: Patent
• Language: English; French
• Published: 14.07.2009
• Subjects: ADHESIVES; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BLASTING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; DYES; ENGINEERING ELEMENTS AND UNITS; FILLING PASTES; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INKS; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; THERMAL INSULATION IN GENERAL; TRANSPORTING; USE OF MATERIALS THEREFOR; WEAPONS; WOODSTAINS

A fastener assembly includes a row of fasteners having a head, a tip, and a portion of a shank coated with a polymer composition. The polymer composition includes a polymer material such as polyurethane and metal particles. The polymer composition is used to provide improved corrosion and ultraviolet radiation resistance when used with naturally corrosive or pressure preservative treated wood. The fastener assembly is coated with the polymer composition by vacuum coating a dispersion of the polymer composition in a solvent such as water and removing the solvent. Dispositif d'attache comportant une série d'attaches possédant une tête, une pointe et une portion de tige revêtue avec une formulation polymérique. La formulation renferme un polymère tel que le polyuréthane ainsi que des particules de métal. La formulation polymérique sert à accroître la résistance à la corrosion et au rayonnement ultraviolet dans les cas où le dispositif est utilisé avec du bois traité avec un agent de préservation corrosif ou sous pression. Le dispositif d'attache est revêtu avec la formulation polymérique par application sous pression d'une dispersion de la formulation dans un solvant tel que l'eau, après quoi le solvant est retiré.