Patent number: 5997829
Abstract: The present invention is directed to a sheet-form environment purifying material comprising particles of metal and/or metal oxide consisting essentially of at least one member being selected from the group consisting of manganese, copper, zinc, iron, vanadium, nickel, titanium, palladium, platinum, manganese oxide, copper oxide, zinc oxide, iron oxide, vanadium oxide, nickel oxide, titanium oxide, palladium oxide, and platinum oxide, adsorbent particles consisting essentially of at least one member selected from the group consisting of activated carbon, zeolite, silica gel, sepiolite, activated alumina and activated clay, thermoplastic resin particles being selected from ultrahigh-molecular weight polyethylene, polyethylene, polycarbonate, polyamide acrylonitrile-butadiene-styrene resins, polyimide, polyvinyl chloride, cellulose acetate, polysulfone, polystyrene phthalate and polypropylene, and an air-permeable sheet of fibrous.
Type:
Grant
Filed:
November 26, 1997
Date of Patent:
December 7, 1999
Assignee:
Hitachi Chemical Company, Ltd.
Inventors:
Yoshika Sekine, Kenji Tonoki, Tatsuya Uchida, Yasuo Miyadera, Hiroyuki Kawada, Takayuki Senda