Dimethyldibenzylidene sorbitol

Dimethyldibenzylidene sorbitol (CAS 135861-56-2) is a nucleating and clarifying agent used in polypropylene processing. Also marketed as Millad 3988.

Where is Dimethyldibenzylidene sorbitol used?

• Polypropylene packaging and consumer goods: glass-like transparency without more expensive resins
• Injection-molded food containers, caps and closures: faster cycle times
• Thin-wall packaging films and sheets on high-speed lines: consistent clarity across production runs
• Building and construction: transparent or translucent polypropylene components
• It accelerates crystallization during molding and improves optical clarity in finished plastic parts.

Good to know: Food-contact compliant grades meet regulatory requirements for packaging in major markets; technical-grade material is for non-food industrial applications where regulatory compliance is not a primary sourcing criterion.

Commercial specifications

• Incorporated at low loading levels for improved stiffness-to-weight ratios