CLOVERDALE, CA, July 31, 2015-

"Fibers, nonwoven fabric and uses thereof"; US 9,074,303 (Jul. 7, 2015); filed: Aug. 18, 2009. Assignee: Mitsui Chemicals, Inc. (Tokyo, Japan). Inventor(s): Kazuhiko Masuda, Yoshihisa Kawakami, Hisashi Morimoto.

It is an object of the invention to develop a polypropylene nonwoven fabric which exhibits hydrophilicity in a short time after it is produced and long-lasting hydrophilicity which recovers in a short time even if it is subjected to heat treatment. The 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^oC. and 0.5 to 5 parts by weight of a nonionic surface active agent comprising an alkylene oxide adduct of an aliphatic alcohol.

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