Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid And 2,2'-Oxybis[Ethanol] is a specialized copolyester resin, known commercially as a type of amorphous, high-performance thermoplastic. This polymer is valued for its excellent thermal stability, chemical resistance, and mechanical properties, making it a versatile material for demanding engineering applications. It is primarily sought by manufacturers in the coatings, adhesives, and advanced plastics industries for creating durable, high-quality end products.

Application

• High-Performance Coatings: Used as a resin binder in industrial and automotive coatings requiring excellent weatherability, chemical resistance, and adhesion.
• Engineering Plastics & Composites: Serves as a key polymeric component in the formulation of specialty thermoplastics and fiber-reinforced composites.
• Adhesives and Sealants: Imparts strong bonding characteristics and durability in structural and specialty adhesive formulations.
• Electrical Insulation: Utilized in wire enamels and insulating varnishes due to its good dielectric properties and thermal endurance.
• Films and Packaging: Can be processed into films for specialized packaging applications that demand barrier properties and clarity.
• 3D Printing Materials: Incorporated as a polymer matrix in high-temperature resistant filaments for fused deposition modeling (FDM) and other additive manufacturing processes.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid And 2,2'-Oxybis[Ethanol]
CAS No.	30976-29-5
Molecular Formula	(C8H6O4 • C8H6O4 • C4H10O3)n
Molecular Weight	Polymeric substance (varies by grade)
Synonyms	Poly(isophthalic acid-co-terephthalic acid-co-diethylene glycol); Isophthalic Acid/Terephthalic Acid/Diethylene Glycol Copolymer; Poly(DEG-co-IPA-co-TPA); Diethylene Glycol/Isophthalic Acid/Terephthalic Acid Copolyester; PET/PEI Copolyester (modified); Amorphous Copolyester Resin; Thermoplastic Polyester Elastomer (TPE-E) variant
EINECS	Contact for details

Quality Control

Our production of this copolyester adheres to stringent quality management protocols. Each batch undergoes comprehensive analysis to ensure consistent performance characteristics such as intrinsic viscosity, acid value, glass transition temperature (Tg), and thermal stability. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We support compliance with relevant global regulatory frameworks, including REACH.

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). This material is hygroscopic (moisture-sensitive); the original container must be kept sealed to prevent moisture absorption, which can affect processing and final product properties.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Identification (IR)	Conforms to structure
Intrinsic Viscosity (IV)	0.50 - 0.80 dL/g (Typical, varies by grade)
Acid Value	≤ 3.0 mg KOH/g
Glass Transition Temp (Tg)	55 - 75 °C
Moisture Content	≤ 0.5 %
Melting Point	Amorphous (No sharp melting point)

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