Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid is a high-performance, amorphous copolyester resin engineered for superior durability and chemical resistance. This material matters for formulators seeking to enhance the toughness, thermal stability, and weatherability of industrial coatings and specialty plastics. Key industries that need this polymer include automotive coatings, coil coatings, industrial maintenance paints, and high-performance adhesives, where long-term protection and aesthetic finish are critical.

Application

• Automotive OEM and Refinish Coatings: Provides excellent gloss retention, scratch resistance, and durability for exterior car body panels and parts.
• Coil and Can Coatings: Used in pre-coated metal for appliances and building materials, offering formability and resistance to chemicals and weathering.
• Industrial Maintenance Paints: Formulated into protective coatings for structural steel, chemical plants, and marine environments due to its robust barrier properties.
• Plastic Modification: Acts as a performance additive to improve the impact strength and heat deflection temperature of engineering thermoplastics.
• High-Solid and Powder Coatings: An essential resin for environmentally compliant coating systems that require low VOC emissions.
• Specialty Inks and Adhesives: Imparts adhesion and flexibility in demanding graphic arts and bonding applications.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid
CAS No.	109694-68-0
Molecular Formula	(C8H6O4·C8H6O4·C5H12O2·C6H10O4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(neopentyl glycol-co-1,3-benzenedicarboxylic acid-co-1,4-benzenedicarboxylic acid-co-hexanedioic acid); Copolyester of Isophthalic Acid, Terephthalic Acid, Neopentyl Glycol, and Adipic Acid; NPG-IPA/TPA/Adipate Copolyester; Amorphous Copolyester Resin; Polyester Polyol (certain grades); Coating Resin 109694-68-0; PES based on NPG/Adipic Acid/IPA/TPA
EINECS	Contact for details

Quality Control

Our production of this copolyester resin adheres to strict quality management systems, ensuring batch-to-batch consistency for critical coating performance parameters like viscosity, hydroxyl value, acid number, and glass transition temperature (Tg). Certificates of Analysis (COA) detailing key specifications are provided with every shipment. We support compliance with global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed when not in use to prevent moisture absorption, which can affect processing and final product properties.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow pellets or chips
Glass Transition Temperature (Tg)	40 - 70 °C (Grade Dependent)
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	Contact for details
Viscosity (at specified temp & conc.)	Contact for details
Color (Gardner)	≤ 2
Moisture Content	≤ 0.1 %

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