Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Aci D, 1,2-Ethanediol And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol is a specialized, high-performance copolyester resin engineered for demanding industrial applications. This polymer offers a unique balance of chemical resistance, thermal stability, and mechanical properties derived from its specific monomer composition. It is a critical raw material for formulators and manufacturers requiring durable, high-performance coatings, adhesives, and composite materials. Industries such as automotive, aerospace, and industrial coatings rely on this polymer to enhance product longevity and performance under harsh conditions.

Application

• High-Performance Industrial Coatings: Used as a key resin in powder coatings, coil coatings, and can coatings, providing excellent weatherability, chemical resistance, and adhesion to metal substrates.
• Automotive and Aerospace Finishes: Serves as a critical component in primer and topcoat formulations that require durability, gloss retention, and resistance to fuels, oils, and solvents.
• Specialty Adhesives and Sealants: Imparts toughness and flexibility to structural adhesives and sealants used in construction, transportation, and assembly applications.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composites, enhancing interlaminar strength and environmental resistance.
• Electrical Insulation: Utilized in wire enamels and insulating varnishes due to its good dielectric properties and thermal stability.
• Industrial and Maintenance Paints: Formulated into heavy-duty protective coatings for pipelines, offshore platforms, and chemical processing equipment.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Aci D, 1,2-Ethanediol And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
CAS No.	63740-67-0
Molecular Formula	(C8H6O4 · C8H6O4 · C2H6O2 · C6H14O3)n
Molecular Weight	Polymer - Contact for details
Synonyms	Isophthalic Acid-Terephthalic Acid-Ethylene Glycol-Trimethylolpropane Copolyester; Poly(ethylene glycol-co-trimethylolpropane isophthalate-co-terephthalate); Terephthalic Acid-Isophthalic Acid-EG-TMP Copolymer; Polyester Resin from IPA, TPA, EG, and TMP; IPA/TPA/EG/TMP Copolyester; Trimethylolpropane-Modified PET/PEIT Copolymer; Glyptal-type Alkyd Resin (modified); 63740-67-0
EINECS	Contact for details

Quality Control

Our production of this copolyester resin 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. Certificates of Analysis (COA) detailing these specifications are provided with each shipment. While produced under conditions suitable for industrial applications, specific grades can be developed to align with customer-defined parameters or relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids, organic solvents, and sources of heat or ignition. Under these conditions, the product is typically stable for 24 months from the date of manufacture. For long-term storage, the use of a nitrogen blanket is recommended to prevent oxidation and moisture absorption.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Acid Value (mg KOH/g)	≤ 5.0
Hydroxyl Value (mg KOH/g)	20 - 80
Viscosity (mPa·s, @ 25°C, 40% in solvent)	200 - 800
Glass Transition Temperature (Tg)	40 - 70 °C
Color (Gardner)	≤ 3
Softening Point (Ring & Ball)	90 - 120 °C
Moisture Content	≤ 0.5 %

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