Bastone Plasticizer DAP (Diallyl Phthalate)

CAS: 131-17-9

Molecular Formula: C₁₄H₁₄O₄

Bastone Plasticizer Diallyl Phthalate (DAP) is a clear, colorless to pale-yellow liquid that acts as a reactive plasticizer and crosslinking monomer.

Our Bastone DAP is supplied for thermosetting resins, unsaturated polyester systems and electrical insulation applications.

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Description

Diallyl phthalate (DAP), bis(prop-2-enyl) benzene-1,2-dicarboxylate, is the diallyl ester of phthalic acid (CAS 131-17-9, molecular formula C14H14O4, molecular weight 246.26). It is a clear, colorless to pale-yellow liquid.

Unlike conventional phthalate plasticizers, DAP carries two reactive allyl groups. It plasticizes during processing and can then polymerize into a rigid, heat-resistant crosslinked network; unless it is inhibited, it will polymerize on its own.

DAP is used as a monomer for thermosetting DAP resins and molding compounds, which are made into insulators, potentiometers and circuit boards for communication, computer and aerospace equipment. It also forms low-pressure laminates with various fillers.

In polyester and coating systems, DAP serves as a monomer in polyester resins and varnishes, a peroxide diluent in polyester spray systems, and a sealant in insulating varnishes and metal castings.

BASTONE supplies DAP alongside its range of plasticizers and provides technical support for product selection and formulation. Contact our team for specifications, packaging options and pricing.

Specifications

Physical State

Colorless to pale-yellow liquid

Chemical Name

Diallyl phthalate

Molecular Formula

C₁₄H₁₄O₄

CAS

131-17-9

Boiling Point

290°C at 760 mmHg

Freezing Point

-70°C

Flash Point (Closed Cup)

166°C (330°F)

Specific Gravity at 20°C

1.120

Viscosity at 20°C

13 cP

Packaging

200L drum or IBC

Factory and Activities

Why Bastone Plasticizer DAP Stands Apart?

The selection of Bastone Plasticizer DAP for your industrial applications represents a strategic decision that impacts both immediate performance and long-term operational efficiency.

Our product distinguishes itself through a combination of superior purity, consistent quality parameters, and competitive pricing that delivers genuine value to your operations, whether used as a high-performance plasticizer or premium solvent.

Superior Polymer Plasticization Performance

Bastone DAP functions as an exceptionally efficient plasticizer across a broad spectrum of polymer systems, delivering performance that surpasses conventional plasticizers in multiple critical parameters.

The molecular structure of Bastone Plasticizer DAP enables optimal insertion between polymer chains, reducing intermolecular forces and imparting flexibility without compromising mechanical strength.

Bastone DAP plasticizing mechanism proves particularly effective in cellulose acetate, cellulose acetate butyrate, nitrocellulose, and various vinyl polymers, where Bastone DAP creates lasting flexibility while maintaining clarity and color stability.

Split-screen comparison showing two identical clear liquid samples in laboratory beakers, with Stone TXIB and Eastman TXIB labels
Modern quality control laboratory with technician analyzing TXIB samples using advanced testing equipment

Advanced Coating and Adhesive Technology

For coating applications, Bastone Plasticizer DAP demonstrates exceptional performance as both a coalescing agent and permanent plasticizer. Its balanced evaporation rate allows for optimal film formation, while its plasticizing action ensures lasting flexibility and impact resistance in the dried coating.

The unique solvency characteristics of Bastone DAP enable complete dissolution of coating resins during application, followed by controlled evaporation that leaves behind a perfectly plasticized film with enhanced durability and weather resistance.

Printing Ink Excellence and Flexibility Enhancement

The printing ink industry particularly values Bastone Plasticizer DAP for its dual role as a high-performance solvent and permanent plasticizer in both conventional and digital ink formulations.

Bastone DAP enhances ink flexibility on diverse substrates, from flexible packaging films to rigid plastics, preventing cracking and delamination during converting operations and end-use applications.

The plasticizing effect of Bastone Plasticizer DAP proves especially critical in packaging applications where printed materials undergo repeated flexing, stretching, or forming operations.

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