Description

1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol, 1,6-Hexanediol And 1,3-Isobenzofurandione is a specialized polymeric material derived from phthalic anhydride and polyols, designed for high-performance applications. This compound is valued for its ability to impart specific chemical resistance and thermal stability to advanced coating and resin systems. It is primarily sought by manufacturers in the paints & coatings, specialty adhesives, and advanced polymer composites industries seeking to enhance product durability.

Application

• High-Performance Industrial Coatings: Used as a key resin component in coatings requiring excellent chemical resistance to strong alkalis and organic solvents.
• Specialty Adhesives and Sealants: Serves as a polymeric backbone to improve adhesion, flexibility, and environmental stability in demanding bonding applications.
• Engineered Polymer Composites: Incorporated into composite matrices to enhance thermal and mechanical properties for automotive or aerospace components.
• Electrical Insulating Varnishes: Utilized in formulations for wire enamels and insulating materials due to its good film-forming and dielectric properties.
• Printing Inks: Acts as a resin for specialty inks that require fast drying, gloss, and resistance to various chemicals.
• Crosslinking Agent: Functions as a reactive intermediate in the synthesis of more complex, cross-linked polymer networks.

Basic Information

Product Name	1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol, 1,6-Hexanediol And 1,3-Isobenzofurandione
CAS No.	156477-82-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid-co-2-ethyl-2-(hydroxymethyl)-1,3-propanediol-co-1,6-hexanediol); Trimethylolpropane/Hexanediol/Phthalic Anhydride Copolymer; TMP/HD/PA Copolymer; Phthalic Anhydride - Trimethylolpropane - 1,6-Hexanediol Polymer; Polyester polyol based on phthalic anhydride, TMP, and 1,6-hexanediol; 156477-82-6 Polymer; Specialty Phthalic Polyester Resin
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including acid value, hydroxyl value, viscosity, and color to meet precise customer specifications. A comprehensive Certificate of Analysis (COA) documenting these results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong alkalis and incompatible organic solvents. The container must be kept tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Viscous liquid to solid
Color (Gardner)	≤ 3
Acid Value (mg KOH/g)	≤ 5.0
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at 25°C)	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.