Description

1,4-Benzenedicarboxylic acid, polymer with 1,4-cyclohexanedimethanol, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol and 12-hydroxyoctadecanoic acid is a high-performance, multi-component copolyester resin designed for demanding industrial applications. This engineered polymer offers a unique balance of chemical resistance, thermal stability, and mechanical properties, making it a critical material for advanced coatings and formulations. It is primarily sought by manufacturers in the specialty coatings, industrial adhesives, and high-durability plastics sectors seeking to enhance product performance and longevity.

Application

• High-Performance Industrial Coatings: Used as a key resin binder in coil coatings, can coatings, and appliance finishes for superior durability and chemical resistance.
• Specialty Adhesives and Sealants: Serves as a base polymer for formulating adhesives requiring strong bonding under harsh environmental conditions.
• Engineered Plastic Modifiers: Incorporated as an additive or blending component to improve the impact strength and weatherability of engineering plastics.
• Protective Films and Primers: Utilized in primers and clear coats for automotive, aerospace, and marine applications where UV and corrosion resistance are critical.
• Wire and Cable Insulation: Acts as a component in insulation materials requiring excellent electrical properties and thermal endurance.
• Printing Inks: Employed in the formulation of high-quality, abrasion-resistant inks for packaging and industrial printing.

Basic Information

Item	Detail
Product Name	1,4-Benzenedicarboxylic acid, polymer with 1,4-cyclohexanedimethanol, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol and 12-hydroxyoctadecanoic acid
CAS No.	70833-61-3
Molecular Formula	(C8H6O4·C8H14O2·C9H4O5·C5H12O2·C18H36O3)n
Molecular Weight	Polymer - Variable
Synonyms	Copolyester resin based on TPA, CHDM, TMA, NPG, and 12-HSA; Terephthalic acid-CHDM-TMA-NPG-12-Hydroxystearic acid copolymer; Modified PET/PTT copolyester; Glyptal-type alkyd resin variant; High-functionality polyester polyol; Multifunctional polyester resin; Thermoplastic copolyester elastomer (TPC) precursor; Aromatic-aliphatic copolyester with chain modifiers
EINECS	Contact for details

Quality Control

Our production of this specialty copolyester 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. A comprehensive Certificate of Analysis (COA) detailing specific lot specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat sources, open flames, and incompatible materials such as strong oxidizing agents. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Pale yellow to amber pellets or solid
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	20 - 80 mg KOH/g
Viscosity (at 25°C, 40% in solvent)	1000 - 5000 mPa·s
Glass Transition Temperature (Tg)	40 - 70 °C
Color (Gardner)	≤ 3
Moisture Content	≤ 0.5 %

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