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Title:
MELT-BLOWN NONWOVEN FABRIC, FILTER, AND METHOD FOR MANUFACTURING MELT-BLOWN NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2019/130697
Kind Code:
A1
Abstract:
Provided is a melt-blown nonwoven fabric comprising a propylene-based polymer having, in a discharge curve with respect to gel permeation chromatography, at least one peak top at a position of a molecular weight of 20,000 or greater, and at least one peak top at a position of less than a molecular weight of 20,000, and having an intrinsic viscosity [η] of at least 0.35 (dl/g) but less than 0.50 (dl/g).

Inventors:
IIBA, Kozo (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
KOBAYASHI, Teruki (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
Application Number:
JP2018/035741
Publication Date:
July 04, 2019
Filing Date:
September 26, 2018
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; B01D39/16; D01D5/08; D01F6/06; 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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