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US 7,063,733 B2Granted
Filter member
AssigneeBridgestone Corporation
InventorsHisashi Mori, Tadashi Kuwahara, Yasushi Nemoto
Life of this patent
Estimating the term…
Abstract
A filter member which comprises one layer of deodorizing filter 1, which is composed of a reticulated filter substrate and a deodorizing agent adhering to the surface of its skeletons, and one or two layers of dust collecting filter 2a and 2b laminated on any one side or both sides thereof, with the resulting laminate being pleated.
Claims21
A filter member:
- comprising one layer of deodorizing filter, which is composed of a reticulated filter substrate having a skeleton comprising strands and a deodorizing agent adhered to a surface of the skeleton, and at least one layer of dust collecting filter laminated on at least one side thereof, with the resulting laminate being pleated,
- wherein said reticulated filter substrate is formed from one of polypropylene, polyethylene, polyester, and polyamide and said deodorizing agent used for said layer of deodorizing filter comprises spherical or spheroidal particles formed of at least one of petroleum pitch-based activated carbon, coconutshell-based activated carbon, pellet-formed activated carbon, wood-based activated carbon, natural or synthetic zeolite, SiO2, ZnO, TiO2, silica gel, activated clay, cation or anion exchange resin, manganese oxide, and alumina.
A filter member:
- comprising one layer of deodorizing filter, which is composed of a reticulated filter substrate having a skeleton and a deodorizing agent adhered to a surface of the skeleton, and at least one layer of dust collecting filter laminated on at least one side thereof, with the resulting laminate being pleated,
- wherein said deodorizing agent used for said layer of deodorizing filter comprises spherical or spheroidal particles formed of at least one of petroleum pitch-based activated carbon, coconutshell-based activated carbon, pellet-formed activated carbon, wood-based activated carbon, natural or synthetic zeolite, SiO2, ZnO, TiO2, silica gel, activated clay, cation or anion exchange resin, manganese oxide, and alumina,
- wherein said layer of deodorizing filter and said layer of dust collecting filter are bonded together with an adhesive, and
- wherein said reticulated filter substrate as a constituent of said layer of deodorizing filter is primed by corona discharge treatment or resin coating to improve affinity for said adhesive.
1 more element
Dependencies are inferred from the claim text.