Invention Grant
- Patent Title: Fibers, nonwoven fabric and uses thereof
- Patent Title (中): 纤维,无纺布及其用途
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Application No.: US13060725Application Date: 2009-08-18
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Publication No.: US09074303B2Publication Date: 2015-07-07
- Inventor: Kazuhiko Masuda , Yoshihisa Kawakami , Hisashi Morimoto
- Applicant: Kazuhiko Masuda , Yoshihisa Kawakami , Hisashi Morimoto
- Applicant Address: JP Tokyo
- Assignee: MITSUI CHEMICALS, INC.
- Current Assignee: MITSUI CHEMICALS, INC.
- Current Assignee Address: JP Tokyo
- Agency: Buchanan, Ingersoll & Rooney PC
- Priority: JP2008-215743 20080825; JP2008-316092 20081211
- International Application: PCT/JP2009/064416 WO 20090818
- International Announcement: WO2010/024147 WO 20100304
- Main IPC: D04H3/007
- IPC: D04H3/007 ; D04H1/541 ; B32B27/02 ; A61F13/49 ; D01F8/06 ; D01F1/10 ; D01F6/30 ; D02G3/02

Abstract:
It is an object of the present invention to develop a polypropylene nonwoven fabric which is excellent in both of initial hydrophilicity and long-lasting hydrophilicity, that is, which is excellent in initial hydrophilicity that the nonwoven fabric exhibits hydrophilicity in a short time after it is produced and long-lasting hydrophilicity that the nonwoven fabric recovers hydrophilicity in a short time even if it is subjected to heat treatment. The present invention provides fibers of a propylene copolymer composition which comprises 100 parts by weight of a propylene/α-olefin random copolymer having a melting point (Tm) of 125 to 155° C. and 0.5 to 5 parts by weight of a nonionic surface active agent comprising an alkylene oxide adduct of an aliphatic alcohol.
Public/Granted literature
- US20110189917A1 FIBERS, NONWOVEN FABRIC AND USES THEREOF Public/Granted day:2011-08-04
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