Title:
PROTECTIVE NET FOR SCOURING PREVENTION AND PROTECTIVE MATERIAL FOR SCOURING PREVENTION
Document Type and Number:
WIPO Patent Application WO/2024/071403
Kind Code:
A1
Abstract:
The purpose of the prevent invention is to provide a protective net for scouring prevention, the protective net having a low environmental burden, being biodegradable, and having strength that can be maintained over a long period. A protective net for scouring prevention that solves said problem has a net material composed of monofilaments or multifilaments. The net material includes at least 60 mass% of a biodegradable resin (A) that has a melting point of at least 180°C and has biodegradation of at least 60% when subjected to a biodegradation test in compliance with ISO 19679:2016 for at least 30 days and at most 180 days or has biodegradation of at least 60% when subjected to a specific marine biodegradation acceleration test for at least 30 days and at most 180 days, wherein the knot-pull strength after the net material has been immersed in seawater at 25°C for 90 days is at least 200 MPa, and the tensile load capacity of the net material is at least 3,000 N.
Inventors:
KOBAYASHI TAKUMA (JP)
MOKUDAI HARUKI (JP)
TOSE TAKENORI (JP)
MASAKI TAKASHI (JP)
MOKUDAI HARUKI (JP)
TOSE TAKENORI (JP)
MASAKI TAKASHI (JP)
Application Number:
PCT/JP2023/035714
Publication Date:
April 04, 2024
Filing Date:
September 29, 2023
Export Citation:
Assignee:
KUREHA CORP (JP)
International Classes:
E02B3/08; C08L77/02; D01F6/62; D01F6/60
Domestic Patent References:
| WO2022176741A1 | 2022-08-25 |
Foreign References:
| JP2007077558A | 2007-03-29 | |||
| JPH03262430A | 1991-11-22 | |||
| JPS4995413A | 1974-09-10 | |||
| JP2009062640A | 2009-03-26 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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