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Teijin Limited has developed a new carbodiimide anti-hydrolysis agent that exhibits superior anti-hydrolysis properties to improve the durability of various plastics. As it does not generate isocyanate gas, a toxic chemical usually generated during the use of carbodiimide agents, the new agent is expected to help improve working environments for manufacturers.
The new anti-hydrolysis agent, which is based on an agent already used in Teijin’s Biofront heat-resistant bioplastic, has now been confirmed for application in other types of plastics. Effective immediately, the company will begin providing samples to selected customers. Commercialization is envisioned by 2015, with a target annual production of 100 tons by 2018. The new agent already complies with various regulations regarding harmful substances in Japan and Europe including REACH, and Teijin expects to achieve regulatory compliance in the U.S. and China markets as well.
As a cyclic carbodiimide compound, the new anti-hydrolysis agent does not release isocyanate gas when it reacts with plastics. Due to its superior anti-hydrolysis properties, the new agent can be used in relatively small quantities compared to substitutes to increase the durability of polylactic acid and other general-purpose plastics, such as polyesters, polyamides and polyurethanes, without adversely affecting the performance of these materials. In addition, because the agent is heat-resistant to at least 300 degrees C, it can be mixed with plastics at higher temperatures. It can also be used as a cross-linking agent to harden or adjust the viscosity of paint and coating agents.