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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>
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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> DHT-4A™ -2 by Kisuma Chemicals (Kyowa Chemical Industry) is an acid scavengers based on Mg-Al hydrotalcite. It can adsorb acids based on anion exchange. It is recommended for polymers. It is a coated and dehydrated grade for high heat stability. It enhances the heat, fluid and ageing resistance of chloroprene (CR) and epichlorohydrin (ECO) rubbers. <br>
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It improves both the mechanical and the chemical resistance of rubber compounds. </li>
<li>It is high-performance, PFAS-free elastomer solutions without compromising quality. </li>
<li>It enables formulators and sustainability-driven material specifiers to reduce or eliminate the use of fluorinated elastomers like FKM, thus reducing the reliance on materials flagged as hazardous to human health and the environment. </li>
<li>DHT-4A™ -2 also contributes to the United Nation’s Sustainability Development Goals 12 (Responsible Consumption) and 13 (Climate Action) by improving production safety, regulatory compliance and long-term material sustainability. </li></ul>
DHT-4A™
Polymer additives supplied by Kisuma Chemicals (Kyowa Chemical Industry)
2 Products match your search
DHT-4A™
by Kisuma Chemicals (Kyowa Chemical Industry)
- Recently launched
- Sustainable option
DHT-4A™ -2
by Kisuma Chemicals (Kyowa Chemical Industry)
- Recently launched
- Sustainable option
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