ELECTRET FILTER MEDIUM AND AIR FILTER USING THE SAME
PROBLEM TO BE SOLVED: To provide an electret filter medium excellent in the filtering efficiency, pressure loss and charge life, and an air filter using the same. SOLUTION: The electret filter medium comprises a molding including a resin compound containing a polyamine having a repeating structure r...
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| creator | TEZUKA HIROSHI SUZUKI YASUYUKI KAWABE MASAAKI FUJII KEIICHI DOHATA TOYOFUMI |
| description | PROBLEM TO BE SOLVED: To provide an electret filter medium excellent in the filtering efficiency, pressure loss and charge life, and an air filter using the same. SOLUTION: The electret filter medium comprises a molding including a resin compound containing a polyamine having a repeating structure represented by formula (1) (wherein, R1to R8are each independently a 1-4C alkyl group or hydrogen and n is 0 or 1. When n is 0, R9is a 4-15C alkylene group, which may have a substituent selected from the group consisting of a 1-4C alkyl group and a phenyl group. When n is 1, A is a 1-4C alkyl group or a phenylene group wherein a hydrogen atom on a ring may be substituted and R9and R10are each independently a 1-8C alkylene group and the sum of the number of carbon atoms of the alkylene groups of R9and R10is 2-9). The air filter is equipped with this electret filter medium. COPYRIGHT: (C)2003,JPO |
| format | Patent |
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SOLUTION: The electret filter medium comprises a molding including a resin compound containing a polyamine having a repeating structure represented by formula (1) (wherein, R1to R8are each independently a 1-4C alkyl group or hydrogen and n is 0 or 1. When n is 0, R9is a 4-15C alkylene group, which may have a substituent selected from the group consisting of a 1-4C alkyl group and a phenyl group. When n is 1, A is a 1-4C alkyl group or a phenylene group wherein a hydrogen atom on a ring may be substituted and R9and R10are each independently a 1-8C alkylene group and the sum of the number of carbon atoms of the alkylene groups of R9and R10is 2-9). The air filter is equipped with this electret filter medium. COPYRIGHT: (C)2003,JPO</description><edition>7</edition><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; GENERAL PROCESSES OF COMPOUNDING ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; WORKING-UP</subject><creationdate>2003</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030819&DB=EPODOC&CC=JP&NR=2003230807A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030819&DB=EPODOC&CC=JP&NR=2003230807A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TEZUKA HIROSHI</creatorcontrib><creatorcontrib>SUZUKI YASUYUKI</creatorcontrib><creatorcontrib>KAWABE MASAAKI</creatorcontrib><creatorcontrib>FUJII KEIICHI</creatorcontrib><creatorcontrib>DOHATA TOYOFUMI</creatorcontrib><title>ELECTRET FILTER MEDIUM AND AIR FILTER USING THE SAME</title><description>PROBLEM TO BE SOLVED: To provide an electret filter medium excellent in the filtering efficiency, pressure loss and charge life, and an air filter using the same. SOLUTION: The electret filter medium comprises a molding including a resin compound containing a polyamine having a repeating structure represented by formula (1) (wherein, R1to R8are each independently a 1-4C alkyl group or hydrogen and n is 0 or 1. When n is 0, R9is a 4-15C alkylene group, which may have a substituent selected from the group consisting of a 1-4C alkyl group and a phenyl group. When n is 1, A is a 1-4C alkyl group or a phenylene group wherein a hydrogen atom on a ring may be substituted and R9and R10are each independently a 1-8C alkylene group and the sum of the number of carbon atoms of the alkylene groups of R9and R10is 2-9). The air filter is equipped with this electret filter medium. 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SOLUTION: The electret filter medium comprises a molding including a resin compound containing a polyamine having a repeating structure represented by formula (1) (wherein, R1to R8are each independently a 1-4C alkyl group or hydrogen and n is 0 or 1. When n is 0, R9is a 4-15C alkylene group, which may have a substituent selected from the group consisting of a 1-4C alkyl group and a phenyl group. When n is 1, A is a 1-4C alkyl group or a phenylene group wherein a hydrogen atom on a ring may be substituted and R9and R10are each independently a 1-8C alkylene group and the sum of the number of carbon atoms of the alkylene groups of R9and R10is 2-9). The air filter is equipped with this electret filter medium. COPYRIGHT: (C)2003,JPO</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP |
| title | ELECTRET FILTER MEDIUM AND AIR FILTER USING THE SAME |
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