Description

1,4-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and hexanedioic acid CAS NO 122760-89-8 is a high-performance, multi-component copolyester resin engineered for demanding industrial applications. This polymer is valued for its ability to provide a balanced profile of thermal stability, chemical resistance, and mechanical properties. It is a critical raw material for manufacturers in the coatings, adhesives, and specialty plastics industries seeking to enhance product durability and performance.

Application

• High-Performance Industrial Coatings: Used as a resin binder in powder coatings, coil coatings, and can coatings, providing excellent weatherability, corrosion resistance, and surface finish.
• Specialty Adhesives and Sealants: Serves as a key polymer component in formulations requiring strong adhesion, flexibility, and resistance to environmental stress.
• Engineering Plastics and Composites: Incorporated as a modifier or primary resin to improve the heat deflection temperature, dimensional stability, and chemical resistance of molded parts and composite materials.
• Electrical Insulation Materials: Utilized in wire enamels and insulating varnishes due to its good dielectric properties and thermal endurance.
• Automotive Components: Applied in under-the-hood parts, interior trim, and protective coatings where thermal and chemical stability are paramount.
• Packaging Materials: Used in specialty films and coatings for packaging that requires barrier properties and durability.

Basic Information

Item	Details
Product Name	1,4-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and hexanedioic acid
CAS No.	122760-89-8
Molecular Formula	Polymeric substance - Contact for details
Molecular Weight	Polymeric substance - Contact for details
Synonyms	Copolyester resin based on TPA, TMA, NPG, EG, TMP, and adipic acid; Terephthalic acid - Trimellitic anhydride - Neopentyl glycol - Ethylene glycol - Trimethylolpropane - Adipic acid copolymer; Polyester resin, branched; Thermosetting polyester resin; Saturated copolyester resin; Alkyd-type polyester; Multi-functional polyester polyol
EINECS	Contact for details

Quality Control

Our production of this copolyester resin adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, hydroxyl value, viscosity, glass transition temperature (Tg), and color are rigorously monitored. Certificates of Analysis (COA) documenting full specifications are available for every shipment. We support compliance with relevant industry standards, including those for coatings and polymers.

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, open flames, and incompatible materials such as strong oxidizers. The product may be hygroscopic; ensure containers are sealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Acid Value	5 - 15 mg KOH/g
Hydroxyl Value	30 - 80 mg KOH/g
Viscosity (at 25°C, 40% in solvent)	200 - 800 mPa·s
Glass Transition Temperature (Tg)	40 - 60 °C
Color (Gardner)	≤ 2
Softening Point	90 - 120 °C
Moisture Content	≤ 0.5 %

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