Description

Phthalic Acid Bis(2-Methyl-2-Propenyl) Ester is a specialized diester monomer derived from phthalic acid and isobutylene derivatives, serving as a critical building block in advanced polymer synthesis. Its unique structure provides excellent cross-linking capabilities and contributes to the thermal and mechanical properties of the final polymeric materials. This high-purity intermediate is essential for manufacturers in the coatings, adhesives, and specialty plastics industries seeking to develop high-performance, tailored resin systems.

Application

• Cross-linking Agent for Acrylic Resins: Imparts durability and chemical resistance in high-performance industrial and automotive coatings.
• Monomer for Specialty Polymers: Used in the synthesis of unsaturated polyester resins (UPR) and other copolymer systems.
• Adhesive Formulations: Enhances bond strength and flexibility in structural and pressure-sensitive adhesive applications.
• Plasticizer Intermediate: Acts as a precursor in the production of specialized plasticizers for PVC and other polymers.
• UV-Curable Systems: A key component in inks, coatings, and 3D printing resins that cure under ultraviolet light.
• Composite Materials: Used in fiber-reinforced plastics (FRP) for the marine, construction, and transportation sectors.

Basic Information

Product Name	Phthalic Acid Bis(2-Methyl-2-Propenyl) Ester
CAS No.	5085-00-7
Molecular Formula	C16H20O4
Molecular Weight	276.33 g/mol
Synonyms	Bis(2-methylallyl) phthalate; Diallyl phthalate, dimethyl-substituted; 2-Methyl-2-propenyl phthalate; Phthalic acid diallyl ester, dimethyl-; 1,2-Benzenedicarboxylic acid, bis(2-methyl-2-propenyl) ester; Isobutenyl phthalate; DIMAP; Contact for additional trade names.
EINECS	225-791-2

Quality Control

Our Phthalic Acid Bis(2-Methyl-2-Propenyl) Ester is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided to guarantee consistency and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials such as strong acids and organic solvents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Color (APHA)	≤ 50
Water Content (KF)	≤ 0.1%
Acid Value	≤ 0.5 mg KOH/g
Refractive Index (20°C)	1.510 - 1.520
Density (20°C)	1.08 - 1.12 g/cm³

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.