Description

1,3-Benzenedicarboxylic acid, polymer with dimethyl 1,4-cyclohexanedicarboxylate, 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol and nonanedioic acid CAS NO 89911-11-5 is a high-performance, multi-component copolyester resin engineered for demanding industrial applications. This specialized polymer offers a unique balance of thermal stability, chemical resistance, and mechanical properties derived from its complex aromatic and aliphatic monomer composition. It is a critical raw material for manufacturers in the coatings, adhesives, and specialty plastics sectors 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 hardness.
• Specialty Adhesives and Sealants: Serves as a key polymer component in structural adhesives and hot-melt formulations, offering strong bonding strength and flexibility.
• Engineering Thermoplastics and Composites: Acts as a modifier or base resin in composite materials, enhancing thermal stability and chemical resistance for automotive and electrical components.
• Protective Films and Laminates: Utilized in the production of films that require barrier properties against moisture, gases, and chemicals.
• Ink Resins: Formulated into high-quality printing inks, particularly for packaging, where rub resistance and gloss are essential.
• Fiber Reinforcements: Employed in sizing or coating formulations for glass or carbon fibers to improve interfacial adhesion in composite materials.

Basic Information

Product Name	1,3-Benzenedicarboxylic acid, polymer with dimethyl 1,4-cyclohexanedicarboxylate, 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol and nonanedioic acid
CAS No.	89911-11-5
Molecular Formula	(C8H6O4·C10H16O4·C5H12O2·C6H14O3·C6H14O2·C9H16O4)n
Molecular Weight	Polymer - Variable
Synonyms	Copolyester of Isophthalic Acid, Dimethyl 1,4-Cyclohexanedicarboxylate, Neopentyl Glycol, Trimethylolpropane, 1,6-Hexanediol, and Azelaic Acid; Poly(isophthalate-co-1,4-cyclohexanedicarboxylate-co-neopentyl glycol-co-trimethylolpropane-co-1,6-hexanediol-co-azelate); Isophthalic Acid Copolyester Resin; Multifunctional Polyester Polyol; Coating Grade Polyester Resin; Adhesive Polyester Resin; Thermoplastic Copolyester
EINECS	Contact for details

Quality Control

Our production of this advanced copolyester 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, glass transition temperature (Tg), and color. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment. We support compliance with relevant global standards for industrial polymers.

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 heat sources and open flame. This material is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption, which can affect processing and final product properties.

Specification

Item	Specification
Appearance	White to off-white granules or pellets
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	Contact for details
Viscosity (at 25°C, 40% in solvent)	Contact for details
Glass Transition Temperature (Tg)	40 - 70 °C
Color (Gardner)	≤ 2
Moisture Content	≤ 0.5 %

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