About Kisuma Chemicals (Kyowa Chemical Industry)

Kisuma Chemicals, established in 1997 and headquartered in Veendam, Netherlands, is a subsidiary of Kyowa Chemical Industry, Japan. The company develops magnesium-based technologies for polymer additives, including hydrotalcites, magnesium hydroxides, acid scavengers, halogen-free flame retardants, stabilizers, and nucleating agents. These technologies enhance polymer stability, durability, flame resistance, and processability. With a strong focus on innovation and reliability, Kisuma supports a wide range of applications in packaging, automotive, medical, and consumer goods, while contributing to the development of safer and more sustainable materials.

Zenthos™ FR

Zenthos™ FR by Kisuma Chemicals (Kyowa Chemical Industry) acts as a flame retardant. It can replace ATO in flexible PVC and PVC plastisols. It delivers multifunctional benefits such as char formation, smoke suppression, thermal stabilization, and improved weatherability. It provides a non-toxic, sustainable alternative that enables compounders to maintain performance while removing substances of concern from their products. <br> <ul style="padding-left: 40px;"><li> It provides formulation flexibility in zinc and zinc-free options and meets with strict flame-retardant standards at cost-efficient dosage levels.</li> <li>It is used in coated fabrics, wires and cables, building envelopes, flooring, wall coverings, geomembranes, and other flexible PVC applications requiring flame retardancy and sustainability. </li></ul>

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KISUMA™ X

KISUMA™ X by Kisuma Chemicals (Kyowa Chemical Industry) is a next-generation synthetic magnesium hydroxide flame retardant with a unique high-aspect-ratio particle shape. It is developed to achieve high HFFR performance at lower dosage levels in polyolefin, EVA and nylon (PA) compounds. <br> <ul style="padding-left: 40px;"><li> It offers better processability, superior flame retardancy and smoke suppression.</li><li> Possible applications include PE and PP compounds for data and communication cables, renewable energy power cables, automotive wires and wiring harnesses, low-smoke zero-halogen building wires, consumer electronics and electric appliances. </li> <li>It contributes to UN Sustainable Development Goals 3 (Good Health & Well-Being), 12 (Responsible Consumption & Production), and 14 (Life Below Water). </li></ul>

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DHT-4A™

DHT-4A™ by Kisuma Chemicals (Kyowa Chemical Industry) is a high performance acid scavenger. It can adsorb acids based on anion-exchange and is three times more effective as Ca-St. It acts as acid acceptor in halogenated rubbers such as CR, CSM, FKM and NBR, where high water resistance and chemical resistance is required. It provides protection of functional additives, such as phenolic and phosphite antioxidants and hindered amine light stabilizers (HALS) from deactivation. <br> <ul style="padding-left: 40px;"><li> It exhibits rendering acids originating from monomers in bioplastics inert, increasing hydrolytic stability. </li> <li>It shows scavenging of free halogen ions deriving from radicals in halogenated flame retardants. </li> <li>DHT-4A™ captures residual acids in maleic anhydride grafted polymers, improving organoleptic properties and corrosion problems. </li> <li>It has an anion exchange capacity and a neutralizing effect due to its alkalinity. </li> <li>Its dispersion characteristics are excellent which further contributes to its high functionality. </li> <li>It is used in polyolefins, elastomers and other polymers. DHT-4A™ can be used at low dosage levels which ensures polymer physical- and optical properties are unaffected. </li></ul>