Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid And 4,4'- (1-Methylethylidene)Bis[Phenol] is a high-performance engineering thermoplastic, specifically a polyarylate resin derived from isophthalic acid, terephthalic acid, and bisphenol A. This polymer is valued for its exceptional combination of optical clarity, high heat resistance, and robust mechanical properties, making it a superior alternative to standard polycarbonates in demanding environments. It is essential for manufacturers in the automotive, electronics, and specialty glazing industries who require durable, transparent materials that can withstand prolonged exposure to heat and harsh chemicals.

Application

• Automotive Components: Used in the production of high-temperature light covers, reflectors, and interior trim parts requiring clarity and dimensional stability.
• Electrical & Electronics: Ideal for connectors, sockets, and insulating films where excellent dielectric properties and flame retardancy are critical.
• Optical & Glazing: Serves as a material for safety glasses, face shields, aircraft windows, and transparent protective covers due to its high impact resistance and UV stability.
• Medical Devices: Employed in components that require repeated sterilization (autoclaving) and chemical resistance without loss of transparency.
• Consumer Goods: Used in premium appliance housings, kitchenware, and outdoor equipment where heat resistance and aesthetic appeal are important.
• Industrial Coatings & Films: Formulated into high-performance coatings and films that provide a protective, clear barrier against corrosion and weathering.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid And 4,4'- (1-Methylethylidene)Bis[Phenol]
CAS No.	26590-50-1
Molecular Formula	(C8H6O4·C8H6O4·C15H16O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Polyarylate; Bisphenol A Polyarylate; PAR; Poly(isophthalate-co-terephthalate) of Bisphenol A; Poly(bisphenol A isophthalate-co-terephthalate); U-Polymer®; Arylef®; 2,2-Bis(4-hydroxyphenyl)propane polymer with isophthalic acid and terephthalic acid; Isophthalic acid-terephthalic acid-bisphenol A copolymer
EINECS	Contact for details

Quality Control

Our polyarylate resins are produced under strict quality management systems to ensure batch-to-batch consistency and performance reliability. Quality is verified through a comprehensive suite of tests including intrinsic viscosity, thermal analysis (DSC, TGA), and mechanical property assessment. Certificates of Analysis (COA) detailing key specifications are provided with every shipment. We support compliance with relevant industry standards, including ISO 9001, and can tailor specifications to meet specific customer and application requirements.

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 acids and organic solvents. As a thermoplastic, the material should be stored in its original packaging to prevent moisture absorption and contamination prior to processing.

Specification

Item	Specification
Appearance	Clear, pale yellow pellets or powder
Glass Transition Temperature (Tg)	> 180 °C
Tensile Strength	> 70 MPa
Light Transmittance	> 85 %
Intrinsic Viscosity (IV)	0.50 - 0.70 dL/g
Moisture Content	< 0.05 %
Ash Content	< 0.1 %

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