Leadclear 3988

Leadclear 3988 is a third-generation dibenzylidene sorbitol nucleating agent that provides excellent clarification and modification effects, effectively enhancing the stiffness and heat deflection temperature of polypropylene products.

Chemical name : 1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol

CAS number : 135861-56-2

Formula : C₂₄H₃₀O₆

M. W. : 414

Specification

Appearance

White powder

Effective component

98.0% min

Melting point

250°C min

Bulk density

0.11-0.25 g/cm3

Volatility

0.50% max

Ash

0.20% max

Particle size

D97≥30 μm

D50≥15 μm

Application

Leadclear 3988 is a highly effective clarifying agent for polypropylene homopolymer, random copolymer, and LLDPE. It can be blended via dry mixing or masterbatch, imparting high transparency while improving mechanical properties and heat resistance. This product is suitable for applications such as thin-wall injection molding, film/sheet extrusion, blow molding, and rotational molding. Specifically for injection molding, it is used to produce housewares, storage cases, living hinge containers, thin-wall containers, and disposable syringes. It is also ideal for manufacturing clarified PP and blow-molded bottles, which are widely used for pharmaceuticals, spices, juices, sauces, vitamins, baby bottles, and more. 

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