Description

1,3-Isobenzofurandione, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,5-Furandione is a specialized polymeric material derived from the controlled reaction of phthalic anhydride, trimethylolethane, and maleic anhydride. This engineered polymer is valued for its ability to impart specific chemical resistance, thermal stability, and tailored reactivity in advanced formulations. It serves as a critical functional intermediate or additive for manufacturers in the coatings, adhesives, and specialty resin industries seeking to enhance product performance.

Application

• Advanced Coating Resins: Used as a building block or cross-linking agent in high-performance industrial, automotive, and marine coatings to improve hardness, chemical resistance, and durability.
• Adhesive & Sealant Formulations: Functions as a reactive modifier in structural adhesives and sealants, enhancing bond strength, flexibility, and environmental resistance.
• Unsaturated Polyester Resins (UPR): Acts as a co-monomer or modifier in UPR systems for composites, gel coats, and fiber-reinforced plastics (FRP) to fine-tune cure profiles and final material properties.
• Specialty Polymer Synthesis: Serves as a key intermediate for synthesizing custom polymers with specific acid/anhydride functionality for niche industrial applications.
• Epoxy Curing Agents & Modifiers: Utilized in the development of anhydride-based curing agents for epoxy systems, impacting cure speed and thermomechanical properties.
• Ink & Toner Binders: Incorporated into formulations for specialty printing inks and toners to adjust melt viscosity, adhesion, and triboelectric properties.

Basic Information

Product Name	1,3-Isobenzofurandione, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,5-Furandione
CAS No.	67815-78-5
Molecular Formula	(C8H4O3·C6H14O3·C4H2O3)n
Molecular Weight	Polymeric substance (variable)
Synonyms	Phthalic Anhydride-Trimethylolethane-Maleic Anhydride Copolymer; PA-TME-MA Terpolymer; Maleic Anhydride-Phthalic Anhydride-Trimethylolethane Polymer; Poly(phthalic anhydride-co-trimethylolethane-co-maleic anhydride); TME-modified PA/MA copolymer; Anhydride-functional polyester polyol; 2,5-Furandione, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 1,3-isobenzofurandione
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict batch-to-batch consistency protocols, ensuring reliable performance in downstream applications. Quality is verified through parameters including acid value, hydroxyl value, viscosity, and glass transition temperature (Tg). A comprehensive Certificate of Analysis (COA) detailing lot-specific specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent hydrolysis of the anhydride groups. Keep away from strong bases and sources of ignition.

Specification

Item	Specification
Appearance	Off-white to pale yellow solid or viscous resin
Acid Value	Contact for details
Hydroxyl Value (OHV)	Contact for details
Viscosity (at specified temp.)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Softening Point	Contact for details
Identification (IR)	Conforms

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