BONDABLY COATED METALLIC MEMBER

• Main Authors: POTTER, DAVID K, STEELE, ROBERT E, LAM, C. N. CATHERINE
• Format: Patent
• Language: English; French
• Published: 14.01.2014
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

The present provides a bondably coated metallic member comprising a metallic member having a low surface energy polymeric coating, said low surface energy polymeric coating having been surface activated on at least a portion thereof, and having on said surface-activated portion a bondable high surface energy polymeric coating. The present invention also provides a bondably-coated metallic pipe comprising metallic pipe having a low surface energy mainline polymeric coating thereon extending over the pipe except at a bare zone adjacent each end of the pipe that is free from said mainline coating; a portion of said mainline coating adjacent each bare zone having been surface activated and having on said surface activated portion a bondable high surface energy polymeric coating. La présente invention concerne un élément métallique revêtu par collage comprenant un élément métallique ayant un revêtement polymérique à basse tension superficielle, la surface dudit revêtement polymérique à basse tension superficielle ayant été activée sur au moins une de ses parties et présentant, sur cette partie à surface activée, un revêtement polymérique à forte tension superficielle par collage. De plus, la présente invention concerne un tuyau métallique revêtu par collage comprenant un tuyau métallique ayant un revêtement polymérique principal à basse tension superficielle s'allongeant sur le tuyau, à l'exception d'une zone nue adjacente à chaque extrémité du tuyau qui est exempte dudit revêtement principal. Une partie dudit revêtement principal adjacent à chaque zone nue présente une surface active et présente, sur cette partie à surface active, un revêtement polymérique à forte tension superficielle collable.