Title:
MELT-BLOWN NONWOVEN FABRIC, METHOD FOR PRODUCING SAME, MULTILAYER BODY, FILTER FOR MASKS, AND MASK
Document Type and Number:
WIPO Patent Application WO/2023/106230
Kind Code:
A1
Abstract:
The present invention provides: a melt-blown nonwoven fabric which has high strength, elongation, and particle collection efficiency; and the like. The present invention provides a melt-blown nonwoven fabric which contains fibers, wherein: the fibers are formed of a resin composition that contains a poly(3-hydroxyalkanoate) resin; the resin composition has a melt mass flow rate of 90 to 700 g/10 min at 160°C and/or the resin composition has a weight average molecular weight of 120,000 to 200,000; the weight per square meter of the melt-blown nonwoven fabric is 20 to 80 g/m2; the average fiber diameter of the fibers is 1.7 to 3.0 µm; and the fiber diameter variation coefficient of the fibers is 0.36 or less.
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Inventors:
MIYAMOTO TAKAYUKI
MAEDA TAKEKAZU
TAMURA MASANOBU
OTANI SHUNSUKE
MAEDA TAKEKAZU
TAMURA MASANOBU
OTANI SHUNSUKE
Application Number:
PCT/JP2022/044567
Publication Date:
June 15, 2023
Filing Date:
December 02, 2022
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
D04H3/16; A41D13/11; B01D39/16; B32B5/02; B32B5/26; D01F6/62
Domestic Patent References:
| WO2019142920A1 | 2019-07-25 | |||
| WO2020218565A1 | 2020-10-29 |
Foreign References:
| CN111349325A | 2020-06-30 | |||
| US20110124779A1 | 2011-05-26 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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