Description

1,3-Isobenzofurandione, Polymer With 1,2-Ethanediol, 2,5-Furandione And 2,2-Oxybisethanol is a specialized polymeric resin derived from key monomers including phthalic anhydride and maleic anhydride. This product is engineered to deliver consistent performance as a versatile intermediate for high-value coatings and adhesives formulations. It is primarily sought after by manufacturers in the industrial coatings, specialty polymers, and advanced material synthesis sectors.

Application

• Alkyd Resin Modifier: Used to enhance the drying time, hardness, and chemical resistance of alkyd-based industrial and protective coatings.
• Polyester Resin Intermediate: Serves as a key building block in the production of unsaturated polyester resins (UPR) for fiberglass-reinforced plastics (FRP) and composite materials.
• Adhesive Formulation: Incorporated into structural and laminating adhesives to improve bond strength and thermal stability.
• Can & Coil Coatings: Utilized in the formulation of high-performance coatings for metal substrates, offering excellent adhesion and flexibility.
• Industrial Enamels: A critical component in air-drying and baking enamels for machinery, agricultural equipment, and automotive parts.
• Printing Inks: Acts as a resinous component in specialty printing inks, contributing to gloss, rub resistance, and substrate adhesion.

Basic Information

Product Name	1,3-Isobenzofurandione, Polymer With 1,2-Ethanediol, 2,5-Furandione And 2,2-Oxybisethanol
CAS No.	28679-80-3
Molecular Formula	(C8H4O3·C2H6O2·C4H2O3·C4H10O3)n
Molecular Weight	Polymeric substance
Synonyms	Phthalic Anhydride-Maleic Anhydride-Ethylene Glycol-Diethylene Glycol Copolymer; Maleic-Phthalic Copolymer Glycol Ester; Polyester Resin Intermediate (PA/MA type); Alkyd Resin Precopolymer; PA/MA/Glycols Copolymer; Glycol-Modified PA/MA Copolymer; Unsaturated Polyester Prepolymer
EINECS	Contact for details

Quality Control

Our production of this polymeric intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, viscosity, and color are rigorously monitored. Certificates of Analysis (COA) documenting full specifications are available for every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C/59-77°F). Due to its polymeric nature and light-sensitive properties, prolonged exposure to heat, moisture, or direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 4
Acid Value (mg KOH/g)	15 - 35
Viscosity (at 25°C, cP)	2000 - 8000
Solid Content (%)	65 - 75
Identification (IR)	Conforms

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