Description

1,3-Isobenzofurandione, Polymer With 2,5-Furandione, 2,2-Oxybisethanol And 1,2,3-Propanetriol is a specialized polymeric resin derived from phthalic anhydride, maleic anhydride, diethylene glycol, and glycerol. This compound is engineered to deliver exceptional performance as a versatile intermediate for high-performance coatings and adhesives. It is primarily sought after by manufacturers in the paints & coatings, industrial adhesives, and specialty polymer sectors who require materials with specific rheological and cross-linking properties.

Application

• Alkyd Resin Modifier: Used to enhance the drying time, flexibility, and durability of alkyd-based paints and varnishes.
• Polyester Resin Intermediate: Serves as a key building block in the synthesis of unsaturated polyester resins for fiberglass-reinforced plastics (FRP).
• Industrial Coating Formulations: Imparts improved adhesion and chemical resistance in protective coatings for metal, wood, and concrete.
• Adhesive & Sealant Production: Acts as a tackifier and rheology modifier in high-strength structural and assembly adhesives.
• Printing Ink Binder: Utilized in the formulation of specialty printing inks to improve gloss, rub resistance, and substrate adhesion.
• Cross-linking Agent: Functions as a co-reactant in thermosetting polymer systems to increase network density and thermal stability.

Basic Information

Item	Details
Product Name	1,3-Isobenzofurandione, Polymer With 2,5-Furandione, 2,2-Oxybisethanol And 1,2,3-Propanetriol
CAS No.	34540-93-7
Molecular Formula	(C8H4O3·C4H2O3·C4H10O3·C3H8O3)n
Molecular Weight	Polymeric substance (variable)
Synonyms	Phthalic Anhydride-Maleic Anhydride-Diethylene Glycol-Glycerol Copolymer; Maleic-Phthalic Polyester Polyol; Polyester Polyol Resin; Alkyd Resin Precursor; PA-MA-DEG-GLY Polymer; Glycerol Phthalate Maleate; Unsaturated Polyester Polyol; Glyptal-type Resin
EINECS	Contact for details

Quality Control

Our production of this polymeric resin 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. Certificates of Analysis (COA) documenting these specifications are provided with 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed after initial use to prevent absorption of atmospheric moisture, which can affect product properties.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid mass
Color (Gardner)	≤ 4
Acid Value (mg KOH/g)	10 - 30
Hydroxyl Value (mg KOH/g)	150 - 250
Viscosity (at 25°C, mPa·s)	2000 - 8000
Solid Content (%)	≥ 98.0
Water Content (Karl Fischer, %)	≤ 0.5

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