Description

1,4-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[ethanol] and 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol] CAS NO 75214-60-7 is a high-performance, multi-component copolyester designed for advanced material applications. This engineered polymer is valued for its excellent thermal stability, mechanical strength, and chemical resistance, making it a critical component in demanding industrial environments. It is primarily sought by manufacturers in the specialty plastics, coatings, and high-temperature composite sectors.

Application

• High-Temperature Engineering Plastics: As a base resin for components requiring dimensional stability and strength under thermal stress.
• Specialty Coatings and Adhesives: Formulating high-performance, chemically resistant protective layers and bonding agents.
• Advanced Composite Materials: Serving as a matrix resin for fiber-reinforced composites in aerospace and automotive applications.
• Electrical Insulation: Used in the production of films and moldings for electronic components due to its dielectric properties.
• Industrial Film Production: For manufacturing films that require barrier properties and durability.
• Additive for Polymer Modification: Enhancing the thermal and mechanical properties of other polymer blends.

Basic Information

Product Name	1,4-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[ethanol] and 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol]
CAS No.	75214-60-7
Molecular Formula	(C8H6O4·C9H4O5·C26H30O6·C27H32O6)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(oxy-1,4-phenylenecarbonyloxy-1,4-phenylenecarbonyloxyisophthaloyloxy-1,4-phenylenecarbonyloxy-1,4-phenylenecarbonyloxyterephthaloyl); Copolyester of Terephthalic Acid, Trimellitic Acid, Bisphenol A Ethoxylate, and Bisphenol A Propoxylate; BPA-EO/PO-Terephthalate-Trimellitate Copolymer; Aromatic Copolyester Resin; High-Temperature Copolyester; Thermoplastic Polyester Elastomer (TPE-E) variant; PCT-based Copolymer; Engineering Thermoplastic Copolyester
EINECS	Contact for details

Quality Control

Our production of this high-performance copolyester adheres to stringent quality management systems, ensuring batch-to-batch consistency for critical applications. Products undergo rigorous testing including inherent viscosity (IV), glass transition temperature (Tg), and melt flow index (MFI) analysis. A comprehensive Certificate of Analysis (COA) detailing purity, thermal properties, and molecular weight characteristics is provided with every shipment to guarantee compliance with your technical specifications.

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 strong oxidizing agents, strong acids, and strong bases. This material is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption which may affect processing properties.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Identification (IR)	Conforms to structure
Inherent Viscosity (IV)	0.50 - 0.80 dL/g (Typical)
Glass Transition Temperature (Tg)	> 150 °C
Melting Point (Tm)	280 - 320 °C
Moisture Content	< 0.5 % (Karl Fischer)
Ash Content	< 0.1 %

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