MICROSTRUCTURED MULTICOMPOSITE COPPER MICROPARTICLE WITH ANTIBACTERIAL AND/OR BIOCIDAL ACTIVITY THAT COMPRISES IN ITS STRUCTURE 5 DIFFERENT TYPES OF COPPER COMPOUNDS, ALL REGULAR AND CRYSTALLINE
A copper microparticle with antibacterial and/or biocidal activity, wherein each microparticle has a regular, crystalline and microstructured composition that comprises 5 different copper compounds: Antlerite Cu3+2(SO4)(OH)4, Brochantite Cu4+2SO4(OH)6, Chalcantite Cu+2SO4.5H2O, Natrochalcite NaCu2+2(SO4)2OH.H2O and Hydrated copper sulfate hydroxide Cu3(SO4)2(OH)2.4H2O/2CuSO4.Cu(OH)2, with the microparticle having a size of between 5 and 50 μm. A process for preparing copper microparticles with antibacterial and/or biocidal activity. A concentrated polymeric composition (masterbatch) with antibacterial and/or biocidal activity that is incorporated during the extrusion process to molten polymers for forming rigid or flexible products such as fibers, filaments, and sheets. A use of a copper microparticle with antibacterial and/or biocidal activity. A use of a concentrated polymeric composition (masterbatch) with antibacterial and/or biocidal activity.