Description

1,3-Isobenzofurandione, Polymer With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol CAS NO 26659-15-4 is a high-performance polymeric material derived from the reaction of phthalic anhydride and pentaerythritol. This compound is valued for its excellent thermal stability and film-forming properties, making it a critical component in advanced industrial coatings and resins. It is primarily sought after by manufacturers in the coatings, adhesives, and specialty plastics industries for applications requiring durability and chemical resistance.

Application

• High-Performance Industrial Coatings: Used as a key resin in heat-resistant and corrosion-protective coatings for automotive, aerospace, and marine applications.
• Adhesives and Sealants: Serves as a polymeric backbone in formulations requiring strong bonding and environmental resistance.
• Electrical Insulating Varnishes: Employed in wire enamels and insulating materials due to its excellent dielectric properties and thermal endurance.
• Printing Inks: Acts as a binder in specialty printing inks that demand high gloss, adhesion, and durability.
• Powder Coatings: A vital component in thermosetting powder coatings, providing smooth finish and weatherability.
• Can and Coil Coatings: Used in protective coatings for metal packaging and pre-coated steel coils.
• Composite Materials: Functions as a matrix resin or modifier in fiber-reinforced plastics and other composite systems.

Basic Information

Product Name	1,3-Isobenzofurandione, Polymer With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol
CAS No.	26659-15-4
Molecular Formula	(C8H4O3·C5H12O4)n
Molecular Weight	Contact for details
Synonyms	Phthalic Anhydride-Pentaerythritol Polymer; Pentaerythritol Phthalic Anhydride Copolymer; Poly(pentaerythritol phthalate); PPE Resin; Phthalic Anhydride-Pentaerythritol Copolymer; Alkyd Resin Precursor; PA-PE Polymer; 1,3-Dioxoisobenzofuran-5-carboxylic acid polymer with 2,2-bis(hydroxymethyl)propane-1,3-diol
EINECS	Contact for details

Quality Control

Our production of 1,3-Isobenzofurandione, Polymer With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol adheres to stringent quality management protocols. Each batch undergoes rigorous testing for critical parameters such as acid value, viscosity, color, and thermal properties to ensure consistency and performance for your specific application. Certificates of Analysis (COA) documenting full specifications are available upon request, and we can support compliance with relevant industry standards.

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 strong acids, bases, and oxidizing agents. The material may be hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Acid Value (mg KOH/g)	≤ 5.0
Softening Point (Ring & Ball, °C)	90 - 110
Color (Gardner)	≤ 3
Viscosity (25°C, 50% in solvent, cP)	Contact for details
Volatile Content (%)	≤ 1.0
Gel Time (at 200°C, min)	Contact for details

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