POROUS POLYMER MEMBRANE
PROBLEM TO BE SOLVED: To provide a porous polymer membrane excellent in water permeability and hydrophilicity.SOLUTION: A porous polymer membrane comprises: only a copolymer (A) which has a vinyl alcohol unit and a tetrafluoroethylene unit with the alternation rate of the former unit and the latter...
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| creator | TANAKA YOSHITO SHIOYA YUKO ITO KENGO MIKI ATSUSHI |
| description | PROBLEM TO BE SOLVED: To provide a porous polymer membrane excellent in water permeability and hydrophilicity.SOLUTION: A porous polymer membrane comprises: only a copolymer (A) which has a vinyl alcohol unit and a tetrafluoroethylene unit with the alternation rate of the former unit and the latter unit being 30% or more; or a composition of the copolymer (A) with a vinylidene fluoride-based resin, and is produced by a non-solvent induced phase separation method, a thermally induced phase separation method or combination of their methods. |
| format | Patent |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BASIC ELECTRIC ELEMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRICITY GENERAL PROCESSES OF COMPOUNDING METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SEPARATION SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP |
| title | POROUS POLYMER MEMBRANE |
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