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Title:
SPUN-BONDED NONWOVEN FABRIC, SANITARY MATERIAL AND METHOD FOR MANUFACTURING SPUN-BONDED NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2019/146656
Kind Code:
A1
Abstract:
A spun-bonded nonwoven fabric that comprises a fiber formed of a composition, said composition containing a propylene homopolymer having a melting point of 140°C or higher, a polyethylene and at least one kind of polymer selected from the group consisting of polymer (I) and polymer (II), wherein the fiber has a sea-island structure and, in a cross section along the long axis direction of the fiber, the average length of the island phase is 1-500 μm inclusive, and a method for manufacturing the spun-bonded nonwoven fabric. Polymer (I) is a random copolymer of propylene with an α-olefin having a specific number of carbon atoms and polymer (II) is a propylene homopolymer having a melting point of lower than 120°C and satisfying a specific requirement in physical property.

Inventors:
ICHIKAWA, Taiichiro (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
SHIMADA, Koichi (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
MOTOMURA, Shigeyuki (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
MATSUBARA, Akio (INC. 5-2, Higashi-Shimbashi 1-chome, Minato-k, Tokyo 17, 〒1057117, JP)
Application Number:
JP2019/002122
Publication Date:
August 01, 2019
Filing Date:
January 23, 2019
Export Citation:
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Assignee:
MITSUI CHEMICALS, INC. (5-2 Higashi-Shimbashi 1-chome, Minato-ku Tokyo, 22, 〒1057122, JP)
International Classes:
D04H3/007; A61F13/15; A61F13/51; A61L15/24; C08F110/06; C08K5/20; C08L23/06; C08L23/12; C08L23/18; D01D5/098; D01F6/46; D04H3/16
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (TAIYO, NAKAJIMA & KATO Seventh Floor, HK-Shinjuku Bldg., 3-17, Shinjuku 4-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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