Patent ID: 6875472
Filing Date: 2005-04-05
Classification: B05B,B05D

Abstract:
1. A method of improving adhesion between the surface of one or more thermoplastic polyolefin elements and a paint coat subsequently applied thereto, said method comprising: supplying an adhesion promoter; creating a mixture of said adhesion promoter and de-ionized water; providing an enclosure, said enclosure forming a protective environment for the application of said mixture; regulating the atmosphere within said enclosure; providing said mixture to an application device located within said enclosure said application device having at least one nozzle; placing said one or more thermoplastic polyolefin elements within said enclosure; applying said mixture to said one or more thermoplastic polyolefin elements via said at least one nozzle of said adhesion promoter application device, such that said mixture flows over said one or more thermoplastic polyolefin elements; regulating at least the angle and velocity at which said mixture contacts said one or more thermoplastic polyolefin elements; and drying said one or more thermoplastic polyolefin elements after application of said mixture; whereby a dried layer of said adhesion promoter is retained on the surface of said one or more thermoplastic polyolefin elements; and wherein application of said mixture according to said method minimizes agitation of said mixture and thereby reduces or eliminates defects in said dried layer of adhesion promoter.