Title:
MASK, METHOD FOR PRODUCING SAME, AND MULTILAYER STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2023/171256
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a mask which uses a biodegradable thermoplastic resin. The above is achieved by providing a mask (100) which comprises a mask main body (11) and ear hooks, wherein: the mask main body is provided with a first piece (111) and a second piece (112), in each of which a filter layer (11a), an inner layer (11b) and an outer layer (11c) are stacked; the filter layer contains a biodegradable resin; and the resin in the filter layers leaks out and is fused through perforated parts (11d), which are provided in the inner layer of the first piece and the inner layer of the second piece, in a bonding part (113).
Inventors:
MAEDA TAKEKAZU (JP)
Application Number:
PCT/JP2023/005008
Publication Date:
September 14, 2023
Filing Date:
February 14, 2023
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
A41D13/11
Domestic Patent References:
| WO2019142920A1 | 2019-07-25 |
Foreign References:
| JP2021183297A | 2021-12-02 | |||
| JP2022041789A | 2022-03-11 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Download PDF: