Description

1,3-Isobenzofurandione, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol, Isononanoate is a specialized polymeric resin derived from phthalic anhydride and a branched polyol ester. This compound is valued for its excellent film-forming properties, adhesion, and chemical resistance, making it a critical performance additive in advanced coating systems. It is primarily sought by formulators in the industrial coatings, adhesives, and specialty polymers sectors to enhance durability and application characteristics.

Application

• Industrial and Protective Coatings: Used as a film-forming agent and binder in high-performance coatings for metal, wood, and plastic substrates, providing enhanced weatherability and corrosion resistance.
• Adhesives and Sealants: Serves as a key polymeric component to improve tack, cohesion, and flexibility in structural and pressure-sensitive adhesive formulations.
• Printing Inks: Incorporated into specialty ink systems to promote adhesion, gloss, and rub resistance on various surfaces.
• Plastic Additives: Functions as a processing aid or modifier to improve the compatibility and surface properties of polymer blends and composites.
• Automotive Finishes: Utilized in primer and topcoat formulations to achieve superior finish durability and chemical resistance.
• Marine Coatings: Applied in anti-fouling and protective coating systems for ships and offshore structures due to its stability in harsh environments.

Basic Information

Product Name	1,3-Isobenzofurandione, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol, Isononanoate
CAS No.	71010-65-6
Molecular Formula	(C8H4O3·C11H22O3)n
Molecular Weight	Polymeric substance (Contact for details)
Synonyms	Phthalic Anhydride Polymer with Trimethylolpropane Ester; Poly(phthalic anhydride-co-trimethylolpropane isononanoate); TMP Ester of Phthalic Anhydride Polymer; Isononanoic Acid, Polymer with Phthalic Anhydride and Trimethylolpropane; Polyester Resin from Phthalic Anhydride and Trimethylolpropane Ester; Phthalic Anhydride/TMP Isononanoate Copolymer; Alkyd Resin Modifier; CAS 71010-65-6
EINECS	Contact for details

Quality Control

Our production of 1,3-Isobenzofurandione, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol, Isononanoate adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent viscosity, acid value, solids content, and chemical composition. Certificates of Analysis (COA) documenting full specifications are available upon request, supporting compliance with relevant industry standards for polymer and coating raw materials.

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 / 59-77°F). Keep away from strong oxidizing agents and sources of heat or ignition. Under these conditions, the product maintains optimal stability.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 3
Acid Value (mg KOH/g)	5 - 15
Viscosity (at 25°C)	Contact for details
Solids Content (%)	≥ 98.0
Identification (IR)	Conforms

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