Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Reexamination Certificate
2008-02-04
2011-10-11
Savage, Matthew (Department: 1778)
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
C210S502100, C210S505000, C442S351000, C442S415000, C442S417000, C502S402000, C502S414000
Reexamination Certificate
active
08033400
ABSTRACT:
The invention concerns the production of filter materials for the purification and disinfection of water, water solutions and other liquids, as well as for sterilizing filtration of injections and other solutions, for concentration of biomolecules in physiological liquids, concentration and extraction of viruses, preparation of apyrogenic water, in biocatalytic diaphragm reactors. The invention solves the problems of a new filter material production, characterized by high sorption properties, high retention efficiency of submicron electronegative particles, microorganisms, submicron non-polar particles and chemical contaminations, and, at the same time, characterized by low hydrodynamic resistance. A base of filter material is the nonwoven organic synthetic polymeric fabric, modified by the aluminum hydroxide particles, fixed to the surface of base fibers for improvement of its sorption properties and for making it positively charged. A method of filter material production comprises: applying the modifying composition onto the fibrous base in the form of organic nonwoven synthetic polymeric fabric, wherein said modifying composition comprises the particles of the aluminum-based material, hydrolysis thereof results to formation and fixation of the aluminum hydroxide particles to the base fibers. A method of fluid filtration is carried out using the filter material as a non-woven organic synthetic polymeric fabric, to the fibers of which the aluminum hydroxide particles are fixed.
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International Search Report from International Application No. PCT/RU2006/000410, filed Aug. 3, 2006, mailed on Dec. 28, 2006.
English translation of International Preliminary Report on Patentability, mailed Dec. 28, 2006, from International Application No. PCT/RU2006/000410, filed Aug. 3, 2006.
Lerner Marat Izrailievich
Psakhie Sergey Grigorievich
Pugachev Vladimir Georgievich
Repin Vladimir Evgenievich
Rudenskiy Gennady Evgenievich
Advanced Powder Technologies, LLC
Houston Eliseeva LLP
Savage Matthew
LandOfFree
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