Description

1,3-Benzenedicarboxylic acid polymer with 1,4-benzenedicarboxylic acid, 1,3- dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 1,2-ethanediol and 1,1'-[(1-methylethylidene) bis(4,1-phenyleneoxy)]bis[2-propanol] is a specialized high-performance copolyester resin designed for demanding applications. This engineered polymer offers a unique balance of thermal stability, mechanical strength, and chemical resistance, making it a critical material for advanced manufacturing. It is primarily sought by industries requiring durable, high-grade polymeric components for electronics, coatings, and specialty composites.

Application

• High-Temperature Electrical Insulation: Used in wire enamels, potting compounds, and film capacitors for electronic components.
• Protective and Functional Coatings: Serves as a binder in industrial, automotive, and aerospace coatings requiring excellent adhesion and environmental resistance.
• Engineering Plastics and Composites: A key resin for injection molding or extrusion of parts that must withstand mechanical stress and chemical exposure.
• Adhesives and Sealants: Formulated into high-performance adhesives for bonding metals, ceramics, and other polymers in harsh environments.
• Fiber and Film Production: Utilized in the manufacture of specialty polyester fibers and biaxially oriented films for packaging or industrial use.
• 3D Printing Materials: Acts as a base polymer for high-strength, temperature-resistant filaments in additive manufacturing.

Basic Information

Product Name	1,3-Benzenedicarboxylic acid polymer with 1,4-benzenedicarboxylic acid, 1,3- dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 1,2-ethanediol and 1,1'-[(1-methylethylidene) bis(4,1-phenyleneoxy)]bis[2-propanol]
CAS No.	119681-36-6
Molecular Formula	(C8H6O4·C8H6O4·C9H4O5·C2H6O2·C21H28O4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(1,3-benzenedicarboxylic acid-co-1,4-benzenedicarboxylic acid-co-1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid-co-ethylene glycol-co-bisphenol A propoxylate); Isophthalic Acid-Terephthalic Acid-Trimellitic Anhydride-Ethylene Glycol-Bisphenol A Propoxylate Copolymer; PET/PEI Copolyester (modified); Bisphenol A Propoxylate Modified Polyester Resin; Thermoplastic Copolyester Resin (aromatic); High-Performance Engineering Copolyester; CAS 119681-36-6
EINECS	Contact for details

Quality Control

Our production of this advanced copolyester adheres to strict quality management systems, ensuring batch-to-batch consistency for critical industrial applications. Key parameters including intrinsic viscosity, acid value, glass transition temperature (Tg), and thermal stability are rigorously tested. A Certificate of Analysis (COA) detailing specific lot results 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). Due to its hygroscopic nature, the container must be kept tightly sealed when not in use to prevent moisture absorption, which can affect processing and final product properties. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Identification (IR)	Conforms to structure
Inherent Viscosity	0.50 - 0.80 dL/g (typical)
Acid Value	≤ 5.0 mg KOH/g
Glass Transition Temp (Tg)	≥ 120 °C
Moisture Content (KF)	≤ 0.5 %
Ash Content	≤ 0.1 %

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