Description

1,3-Isobenzofurandione, 3A,4,7,7A-Tetrahydro-, Polymer With 1,2-Ethanediol, 2,5-Furandione And 2,2-Oxybisethanol is a specialized polymeric material derived from a complex reaction of cyclic anhydrides and glycols. This product is valued for its ability to form durable, cross-linked networks, making it a key functional component in high-performance coatings and resin systems. It is primarily sought by manufacturers in the industrial coatings, adhesives, and advanced composite materials sectors for its contribution to film formation and chemical resistance.

Application

• Industrial Coating Resins: Serves as a critical building block in the synthesis of alkyd, polyester, and other thermosetting resins for protective and decorative coatings.
• Adhesive Formulations: Used to enhance the cohesive strength and durability of structural and industrial adhesives.
• Composite Materials: Acts as a matrix resin or cross-linking agent in fiber-reinforced plastics (FRP) and other composite systems.
• Electrical Insulating Varnishes: Incorporated into formulations for wire enamels and insulating coatings due to its film-forming properties.
• Printing Inks: Utilized in specialty ink formulations to improve adhesion and gloss on various substrates.
• Can & Coil Coatings: A component in coatings designed for metal substrates, offering corrosion resistance and flexibility.

Basic Information

Product Name	1,3-Isobenzofurandione, 3A,4,7,7A-Tetrahydro-, Polymer With 1,2-Ethanediol, 2,5-Furandione And 2,2-Oxybisethanol
CAS No.	25749-47-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(1,3-Isobenzofurandione, 3A,4,7,7A-Tetrahydro-, co-1,2-Ethanediol, co-2,5-Furandione, co-2,2-Oxybisethanol); Tetrahydrophthalic Anhydride-Ethylene Glycol-Maleic Anhydride-Diethylene Glycol Copolymer; THPA-EG-MA-DEG Copolymer; Polyester Polyol based on THPA, MA, EG, and DEG; Alkyd Resin Intermediate; Unsaturated Polyester Resin Precursor
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, hydroxyl value, viscosity, and color are rigorously monitored. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider an inert atmosphere. Keep away from strong alkalis and incompatible organic solvents.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 4
Acid Value (mg KOH/g)	10 - 30
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at 25°C, cP)	Contact for details
Solid Content (%)	Contact for details

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