Description

1,4-Benzenedicarboxylic Acid, Polymer With 1,4-Cyclohexanedimethanol, 2,2-Dimethyl-1,3-Propanediol And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol is a high-performance, modified copolyester resin designed for demanding industrial applications. This specialized 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 paints & coatings, adhesives, and specialty plastics industries who require durable, high-quality polymer matrices.

Application

• High-Performance Industrial Coatings: Used as a resin binder in coil coatings, can coatings, and appliance finishes for superior durability and chemical resistance.
• Automotive Coatings: Formulated into primer-surfacers and clear coats requiring excellent adhesion and weatherability.
• Packaging Coatings: Applied to metal packaging (food and beverage cans) for excellent barrier properties and compliance with food contact regulations.
• Adhesives and Sealants: Serves as a key polymeric component in structural and industrial adhesives demanding high strength and environmental resistance.
• Specialty Inks: Utilized in formulations for printing inks that require fast curing and resistance to solvents and abrasion.
• Powder Coatings: A critical resin for powder coating formulations, providing good flow, leveling, and final film properties.
• Plastic Modifiers: Used as an additive or blending component to enhance the toughness and chemical resistance of other thermoplastic polymers.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 1,4-Cyclohexanedimethanol, 2,2-Dimethyl-1,3-Propanediol And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
CAS No.	70703-35-4
Molecular Formula	(C8H6O4·C8H14O2·C5H12O2·C6H14O3)n
Molecular Weight	Polymer - varies by grade
Synonyms	Poly(1,4-cyclohexylenedimethylene-co-3-methyl-1,5-pentanediol terephthalate); Terephthalic Acid Polymer with CHDM, Neopentyl Glycol, and Trimethylolpropane; Modified PCT Copolyester; CHDM/NPG/TMP Terephthalate Copolymer; Cyclohexanedimethanol Terephthalate Copolymer; High-Performance Copolyester Resin 70703-35-4; Thermoplastic Copolyester Resin
EINECS	Contact for details

Quality Control

Our production of this 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. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We support compliance with relevant industry standards for coatings and 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 strong acids and organic solvents. The product is typically supplied as pellets or flakes; protect from moisture to prevent clumping or property changes.

Specification

Item	Specification
Appearance	White to off-white pellets/flakes
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	Contact for details
Viscosity (in solution)	Specified per grade
Glass Transition Temperature (Tg)	Specified per grade
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.