Description

1,3-Isobenzofurandione, Polymer With 1,2-Ethanediol is a polymeric material derived from the reaction of phthalic anhydride and ethylene glycol, commonly known as a polyester polyol. This compound serves as a crucial intermediate and building block in the synthesis of high-performance polymers and resins. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producers of specialty polyurethanes and alkyd resins.

Application

• Polyurethane Synthesis: A key raw material (polyol) for producing flexible and rigid polyurethane foams, elastomers, and coatings.
• Alkyd Resin Production: Used in the formulation of durable, high-gloss alkyd resins for industrial and decorative paints and varnishes.
• Adhesives & Sealants: Acts as a polymeric backbone to enhance flexibility, adhesion, and chemical resistance in structural and non-structural adhesives and sealants.
• Plasticizers: Employed in the manufacture of polymeric plasticizers for PVC and other polymers to improve flexibility and durability.
• Saturated Polyester Resins: A fundamental component for creating saturated polyester resins used in powder coatings and coil coatings.
• Industrial Coatings: Provides excellent film-forming properties and weatherability in high-performance industrial and automotive coatings.
• Composite Materials: Utilized as a matrix resin or modifier in fiber-reinforced plastics and composite materials.

Basic Information

Product Name	1,3-Isobenzofurandione, Polymer With 1,2-Ethanediol
CAS No.	27275-32-7
Molecular Formula	(C10H8O5)n
Molecular Weight	Variable (Polymer)
Synonyms	Poly(ethylene glycol phthalate); Poly(ethylene phthalate) polyol; Phthalic anhydride-ethylene glycol polymer; Ethylene glycol phthalate polymer; Poly(oxyethyleneoxyphthaloyl); PEG phthalate; Poly(ethylene glycol) phthalate; Poly(1,2-ethanediyl phthalate)
EINECS	Contact for details

Quality Control

Our 1,3-Isobenzofurandione, Polymer With 1,2-Ethanediol is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent properties such as hydroxyl value, acid value, viscosity, and molecular weight distribution. Certificates of Analysis (COA) documenting these specifications are available upon request 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 room temperature (15-25°C). Keep away from heat sources and incompatible materials such as strong oxidizing agents, acids, and bases. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Viscous liquid to solid
Color (Gardner)	≤ 3
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (cPs)	Contact for details
Water Content (%)	≤ 0.1

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