Nonphthalate

Nonphthalate refers to plasticizers and related chemicals that do not contain phthalate esters, distinguishing them from conventional phthalates such as DEHP and DINP. The term is used in regulatory and industrial contexts to indicate ingredients chosen as alternatives to phthalates, often to address health and safety concerns and to meet specific market standards. Nonphthalates are employed primarily to soften polyvinyl chloride (PVC) and to improve flexibility in coatings, adhesives, and films, as well as in consumer products that require compliance with toy safety or environmental guidelines.

Representative categories of nonphthalate plasticizers include adipates (for example, di(2-ethylhexyl) adipate), citrates (such as acetyl tributyl citrate), sebacates (like dioctyl sebacate), and trimellitates. A widely used example within the nonphthalate class is DINCH (1,2-cyclohexanedicarboxylic acid diisononyl ester). These substitutes are selected for attributes such as lower volatility, improved low-temperature performance, or perceived lower toxicological risk relative to some phthalates, though performance and cost vary by formulation and application.

Regulatory and market trends have driven increased adoption of nonphthalates, particularly in applications with stringent safety requirements, including children's products, medical devices, and food-contact materials in certain jurisdictions. However, nonphthalates are not inherently risk-free; each substance requires assessment of exposure, persistence, and toxicological properties. The choice of a nonphthalate plasticizer depends on the intended use, regulatory constraints, cost considerations, and the desired material properties.