Title:
SHEET MATERIAL AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/1999/009250
Kind Code:
A1
Abstract:
Sheet material having a high specific surface area necessitated for increasing the rate of removing nicotinic and tarry components from air filter materials, particularly cigaret filter material, and a sheet strength sufficient for enduring the production thereof on an industrial scale, characterized by containing at least 40 % by weight of a cellulose ester and at least 15 % by weight of fibers having a binder function and having a specific surface area of at least 2 m?2¿/g and a specific volume of at least 4.0 cm?3¿/g.
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Inventors:
HIROTA KEIJI (JP)
YAMADA TERUYUKI (JP)
SHINADA KATSUHIKO (JP)
HOSAKO YOSHIHIKO (JP)
YAMADA TERUYUKI (JP)
SHINADA KATSUHIKO (JP)
HOSAKO YOSHIHIKO (JP)
Application Number:
PCT/JP1998/003687
Publication Date:
February 25, 1999
Filing Date:
August 20, 1998
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
HIROTA KEIJI (JP)
YAMADA TERUYUKI (JP)
SHINADA KATSUHIKO (JP)
HOSAKO YOSHIHIKO (JP)
HIROTA KEIJI (JP)
YAMADA TERUYUKI (JP)
SHINADA KATSUHIKO (JP)
HOSAKO YOSHIHIKO (JP)
International Classes:
A24D3/08; A24D3/10; A24D3/16; B01D39/14; B01D39/18; B82Y30/00; D01F2/28; D04H1/4258; D21H11/16; D21H13/06; D21H27/08; (IPC1-7): D21H13/06; D21H11/18; D21H27/00
Foreign References:
| JPH0775542A | 1995-03-20 | |||
| JPS4748680B1 | 1972-12-07 | |||
| JPS5624151A | 1981-03-07 |
Attorney, Agent or Firm:
Shiga, Masatake (Takadanobaba 3-chome Shinjuku-ku Tokyo, JP)
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