Toyochem Co., Ltd., a member of the Toyo Ink Group of Japan, launches Cyabine™, a series of biodegradable polyurethane pressure-sensitive adhesives (PSAs). The PSAs are suitable for packaging, construction, agriculture and other industries where the use of biodegradable or recoverable materials are preferred.
PSA Designed Using Plant-based Raw Materials
The PSA is based on an innovative biodegradable polymer design by using plant-derived raw materials. The new Cyabine™ adhesive achieves a biomass content on a dry weight basis of up to 45 percent. The PSA reduces CO2 emissions throughout the lifecycle of the newly developed product, without compromising on adhesive performance.
After use, the adhesive waste can be digested by soil microorganisms and converted over time into substances, such as carbon dioxide, water, nitrogen and methane gas, thus helping to reduce landfilling and further close the circular loop on plastic waste.
Biodegradability Rate Increases after 60 Days
The new PSA system demonstrates biodegradation rates of 60 percent or higher after 60 days. The adhesive when combined with other biodegradable materials used in a wide range of products, helps in improving the overall biodegradability of the products.
The biodegradability of Cyabine™ PSAs has been confirmed under controlled composting conditions as prescribed by the Japanese Standards Association’s JIS K 6953-1, the equivalent of the international standard ISO 14855-1.
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