Title:
BIODEGRADABLE NONWOVEN FABRIC AND USE OF SAME
Document Type and Number:
WIPO Patent Application WO/2023/032763
Kind Code:
A1
Abstract:
The present invention provides a biodegradable nonwoven fabric which has biodegradability, while having extremely excellent texture, or having good formability and being suppressed in fluffing in an embossed part during forming. One embodiment of the present invention provides: a biodegradable nonwoven fabric which is configured from fibers that contain a biodegradable thermoplastic resin, and is characterized in that the shear viscosity thereof is more than 0 Pa∙s but not more than -41.4 × ln(x) + 500.84 Pa∙s at a shear rate x (x is from 20/s to 10,000/s) at 230°C, or is characterized in that the biodegradable nonwoven fabric has an embossed part and a non-embossed part, and the embossed part thickness index that is obtained by dividing the thickness of the embossed part by the square root of weight is 2.75 to 4.36 mm/(g/m2)0.5; or a food filter such as a coffee filter or a filter for tea bags, a mask, a diaper, an agricultural material or a lightweight packaging material, each of which comprises this biodegradable nonwoven fabric.
Inventors:
FUJIMOTO YUYA (JP)
SAKAMOTO YUICHIRO (JP)
KUSAKABE JUNICHI (JP)
FUKUNAGA AKIHISA (JP)
SHIOTA EIJI (JP)
SAKAMOTO YUICHIRO (JP)
KUSAKABE JUNICHI (JP)
FUKUNAGA AKIHISA (JP)
SHIOTA EIJI (JP)
Application Number:
PCT/JP2022/031764
Publication Date:
March 09, 2023
Filing Date:
August 23, 2022
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
D04H3/011; A41D13/11; A61F13/15; D04H1/435
Domestic Patent References:
| WO2021054465A1 | 2021-03-25 | |||
| WO2017145993A1 | 2017-08-31 |
Foreign References:
| CN107794593A | 2018-03-13 | |||
| JP2008222883A | 2008-09-25 | |||
| JPH06248511A | 1994-09-06 | |||
| JPH0748768A | 1995-02-21 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Download PDF:
Previous Patent: CENTRIFUGAL FAN
Next Patent: METHOD FOR CREATING EQUIVALENT CIRCUIT MODEL OF MULTI-TERMINAL CAPACITOR, EQUIVALENT CIRCUIT MODEL C...
Next Patent: METHOD FOR CREATING EQUIVALENT CIRCUIT MODEL OF MULTI-TERMINAL CAPACITOR, EQUIVALENT CIRCUIT MODEL C...