Tosoh develops bio-based chlorosulfonated polyethylene
Chemical

Tosoh develops bio-based chlorosulfonated polyethylene

TOSO-CSM is widely used in industrial goods, adhesives, rubberized fabrics, handrails, and more

  • By ICN Bureau | June 05, 2025

Tosoh Corporation has developed chlorosulfonated polyethylene (TOSO-CSM) from bio-based raw materials and has established the technology for its mass production. This is the world’s first development of chlorosulfonated polyethylene using bio-based raw materials.

TOSO-CSM is widely used in industrial goods, adhesives, rubberized fabrics, handrails, and more. Its high durability helps extend the lifespan of the products in which it is applied, thereby contributing to reduced environmental impact.

While TOSO-CSM is a material that uses relatively less petroleum resources compared to general plastics, further reduction in the use of petroleum resources has been required from the perspective of reducing greenhouse gas emissions.

The newly developed TOSO-CSM using bio-based raw materials leverages Tosoh’s accumulated expertise in polymer development and the application of bio-based materials, significantly reducing the use of petroleum resources while maintaining high functionality and achieving lower environmental impact.

More than 90% of the carbon atoms in the product have been replaced with bio-based components, and greenhouse gas emissions throughout the product’s life cycle—from manufacturing to use and disposal—are reduced by approximately 30% compared to conventional products.

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