Fabrication of sub micrometric sieves consists of holography, photogravure based on photo resins and metal based electroforming, for filtration

NOVELTY – The fabrication of sub-micrometric sieves comprises holographic exposure for photogravure of a high-performance mask of photo-resins and electroforming using metal. Also claimed is the product of the process. CLAIMED PRODUCT – The product has a transparent substrate coated with conducting material, which is removed prior to use in micro-filtration and e.g. emulsions production. USE – In Chemical engineering.

Main Application Field

J01 (Separation – including evaporation, crystallisation, solvent extraction, chromatography, dialysis, osmosis including drying gases and/or vapours, and separation of solids from gases, liquids and other solids. Isotope separation, filter materials (including molecular sieves for separation), and centrifuges (except where used for analysis) (B01D, B03, B04, B07B).)

INVENTORS:

CARVALHO EDSON JOSÉ DE
CESCATO LUCILA HELENA DELIESPOSTE
RIVERA LUIS HENRIQUE GUTIERREZ

63_PENEIRAS

Patent number: BR200404934-A

PATENT STATUS:

GRANTED

FOR ADDITIONAL INFORMATION:

parcerias@inova.unicamp.br

+55 (19) 3521-5207 / 2607