Description

1,3-Benzenedicarboxylic acid polymer with 2,2-dimethyl-1,3-propanediol, dodecanedioic acid, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid, 1,6-hexanediol and 1,3-isobenzofurandione is a high-performance, multi-component copolyester resin designed for demanding industrial applications. This engineered polymer offers a unique balance of properties derived from its specific monomer composition, including thermal stability, chemical resistance, and excellent mechanical characteristics. 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 Powder Coatings: As a key resin binder for durable, weatherable, and corrosion-resistant finishes for automotive, architectural, and industrial equipment.
• Thermosetting Adhesives and Sealants: Providing strong bonding strength, flexibility, and resistance to environmental stress in construction and assembly applications.
• Industrial and Protective Coatings: Formulating solvent-based or high-solid coatings for metal, plastic, and composite substrates requiring exceptional chemical and abrasion resistance.
• Specialty Molding Compounds: Used in the production of electrical components, automotive parts, and consumer goods where thermal stability and dimensional integrity are paramount.
• Ink Resins for Packaging and Printing: Delivering excellent adhesion, gloss, and rub resistance in flexible packaging and decorative prints.
• Fiber Reinforced Composites: Acting as a matrix resin to produce lightweight, high-strength composite materials for aerospace and automotive sectors.

Basic Information

Product Name	1,3-Benzenedicarboxylic acid polymer with 2,2-dimethyl-1,3-propanediol, dodecanedioic acid, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid, 1,6-hexanediol and 1,3-isobenzofurandione
CAS No.	158765-80-1
Molecular Formula	Polymeric substance; specific formula varies by chain length and monomer sequence.
Molecular Weight	Varies (Typically in the range of 2,000 - 20,000 g/mol for coating-grade resins). Contact for details.
Synonyms	Copolyester resin based on isophthalic acid, neopentyl glycol, and adipic acid; Isophthalic acid-NPG-Adipic acid copolyester; Polyester resin, branched; Thermosetting polyester resin; Modified isophthalic polyester; Coating polyester resin; Adhesive polyester resin; 1,3-Benzenedicarboxylic acid polymer with NPG, DDDA, TMP, adipic acid, 1,6-hexanediol and phthalic anhydride
EINECS	Contact for details.

Quality Control

Our production of this copolyester resin adheres to stringent quality management protocols 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) detailing these specifications are provided with every shipment. Our manufacturing facilities operate under a quality system aligned with ISO 9001 standards, and we can support compliance with REACH and other global regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from heat sources, open flames, and incompatible materials such as strong oxidizing agents. Under these conditions, the product is typically stable for 24 months from the date of manufacture. For long-term storage, consider storage under an inert atmosphere (nitrogen blanket) to prevent oxidation and moisture absorption.

Specification

Item	Specification
Appearance	Clear, viscous liquid or solid pellets
Color (Gardner)	≤ 3
Acid Value (mg KOH/g)	5 - 15
Hydroxyl Value (mg KOH/g)	30 - 80
Viscosity (at 25°C, mPa·s)	2,000 - 10,000 (Solution in specified solvent)
Glass Transition Temperature (Tg)	40°C - 60°C
Solid Content (%)	60 - 70 (In specified solvent)
Volatile Organic Compounds (VOC)	Compliant with regional regulations

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