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Title:
グラフト重合された機能性不織布フィルタ及びその製造方法
Document Type and Number:
Japanese Patent JP5082038
Kind Code:
B2
Abstract:
This invention relates to functional nonwoven filter media provided by radiation-induced graft copolymerization and its production method. Meltblown type of nonwoven (Meltblown) comprised of fine fibers, less than 8 micron in diameter, of polyolefin or polyamide is chosen as the suitable grafting trunk polymer. The production methods are composed of following steps, 1) irradiation less than 30 kGy dose to the Meltblown with electron beam or gamma ray; 2) graft copolymerization of emulsified vinyl monomer onto the Meltblown; and 3) chemical conversion of ion exchange group onto the grafted vinyl monomer. These steps are independently conducted in their suitable operation conditions.

Inventors:
Masao Tamada
Noriaki Seko
Yuji Ueki
Toshihide Takeda
Application Number:
JP2007076685A
Publication Date:
November 28, 2012
Filing Date:
March 23, 2007
Export Citation:
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Assignee:
Japan Atomic Energy Agency
Kurashiki Textile Processing Co., Ltd.
International Classes:
B01J20/26; B01D39/00; B01D39/14; B01D39/16; B01J20/32; B01J39/20; B01J41/14; B01J45/00; B01J47/12; C02F1/42; D06M11/54; D06M13/328; D06M14/28; D06M14/34
Domestic Patent References:
JP3064577A
JP7124454A
JP2005344047A
JP6327969A
JP7024314A
JP2006026588A
Other References:
鳥飼貞男,向山鋭次,ポリプロピレンへの酢酸ビニルの乳化グラフト重合,高分子化学,1962年,第19巻第206号,第337-343頁
Attorney, Agent or Firm:
Kenji Kawabi



 
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