发明名称 |
Porous polypropylene film, process for producing the same, and absorbent articleemploying the film |
摘要 |
Disclosed is a porous film made of a resin composition containing (I) (i) a propylene-ethylene copolymer or (ii) a polypropylene-based resin mixture containing a propylene-ethylene copolymer, each having an ethylene content of 3.0 to 7.0 wt.% and an MFR measured at 230 DEG C of 2.0 to 4.0 g/10 min and (II) a beta -crystal nucleating agent; the film having a porosity of 20 to 80%, a Gurley air permeability of 5,000 sec/100 cc or lower as measured according to JIS P-8117, a water vapor permeability of 2,000 g/m<2>.24h or higher as measured according to JIS Z-0208 and a water pressure resistance of 75 kPa or higher as measured according to JIS L-1092 using an aqueous surfactant solution; a process for producing the same; and an absorbent article employing the porous film as a backsheet. |
申请公布号 |
AU6069701(A) |
申请公布日期 |
2001.12.11 |
申请号 |
AU20010060697 |
申请日期 |
2001.06.01 |
申请人 |
NEW JAPAN CHEMICAL CO. LTD. |
发明人 |
NAOKI IKEDA;KIYOSHI SADAMITSU;MANABU HOKI;KENICHIRO NAGATA;TOSHIAKI KOBAYASHI |
分类号 |
A61F13/49;A61F5/44;A61F13/15;A61F13/514;A61L15/22;A61L15/24;A61L15/42;B29C67/20;C08J5/18;C08J9/00;C08K5/20;C08L23/16 |
主分类号 |
A61F13/49 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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