Product having a specific surface roughness and a high concentration of dissolved copper on its surface

• Main Authors: JOHNSON,, THOMAS D, PRATT,, RICHARD, SUH, TIMOTHY
• Format: Patent
• Language: English; French; German
• Published: 24.06.2015
• Subjects: AGRICULTURE; ALLOYS; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; HYGIENE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MEDICAL OR VETERINARY SCIENCE; METALLURGY; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

A product comprising a copper alloy comprising a contact surface having a roughness of 6 to 14 microinches Ra. This may be produced by a method for maintaining and using a high concentration of dissolved copper on a surface of a useful article by providing a copper surface without coatings thereon which increase the wetting angle and which isolate the copper surface and which has a surface roughness between 2 and 50 micro inches Ra, so as to kill microbes thereon.