Title:
MELT-BLOWN NONWOVEN FABRIC AND HYGIENIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/190074
Kind Code:
A1
Abstract:
The melt-blown nonwoven fabric according to the present disclosure comprises a thermoplastic polyurethane-based elastomer having a number average molecular weight (Mn) of 100,000 or more and a molecular distribution (Mw/Mn), which is a ratio of the weight average molecular weight (Mw) to a number average molecular weight (Mn), of 2.4 or less and has an average fiber diameter of less than 6.5 μm.
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Inventors:
IIHAMA SHO (JP)
KITAYAMA HIDEKI (JP)
YAMAGISHI NAOKI (JP)
HISADA MINORU (JP)
MATSUBARA AKIO (JP)
KITAYAMA HIDEKI (JP)
YAMAGISHI NAOKI (JP)
HISADA MINORU (JP)
MATSUBARA AKIO (JP)
Application Number:
PCT/JP2023/011624
Publication Date:
October 05, 2023
Filing Date:
March 23, 2023
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
D04H3/016; A61F13/511; A61F13/514; D04H3/009; D04H3/16
Domestic Patent References:
| WO2020218092A1 | 2020-10-29 | |||
| WO1993001222A1 | 1993-01-21 | |||
| WO2016143833A1 | 2016-09-15 |
Foreign References:
| JP2017056565A | 2017-03-23 | |||
| JP2014198926A | 2014-10-23 | |||
| JP2013518190A | 2013-05-20 | |||
| JPH0881826A | 1996-03-26 | |||
| JP2000248454A | 2000-09-12 | |||
| JPH0411061A | 1992-01-16 | |||
| JPH06158497A | 1994-06-07 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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