---
title: "Avient Dyneema DM20 fiber wins ClassNK type approval for floating wind mooring lines"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/292040715.md"
description: "Avient's Dyneema DM20 fiber received ClassNK Type Approval for synthetic mooring ropes in floating offshore wind turbines. Valid from February 2026 to February 2031, this certification supports permanent mooring lines as a steel chain alternative. The approval strengthens Avient's position in Japan's offshore wind market, where it collaborates with Toyobo MC."
datetime: "2026-07-08T09:02:08.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/292040715.md)
  - [en](https://longbridge.com/en/news/292040715.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/292040715.md)
---

# Avient Dyneema DM20 fiber wins ClassNK type approval for floating wind mooring lines

-   Avient’s Dyneema DM20 fiber won ClassNK Type Approval for use in synthetic mooring ropes for floating offshore wind turbines. \* Certification was issued in February 2026, valid through February 2031, supporting permanent mooring lines as an alternative to steel chain. \* Approval strengthens positioning in Japan’s offshore wind market, where Avient has a collaboration agreement with Toyobo MC. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Avient Corporation published the original content used to generate this news brief on July 08, 2026, and is solely responsible for the information contained therein. © Copyright 2026 - Public Technologies (PUBT) Original Document: here

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