Description

Poly(4-Hydroxybenzoic Acid-Co-6-Hydroxy-2-Naphthoic Acid) is a high-performance, fully aromatic thermotropic liquid crystalline polymer (LCP), known for its exceptional thermal stability, mechanical strength, and chemical resistance. This copolymer is engineered to deliver superior performance in demanding environments where traditional polymers fail, offering a unique combination of low melt viscosity, high dimensional stability, and excellent flame retardancy. It is a critical material for manufacturers in the electronics, aerospace, automotive, and industrial sectors seeking advanced engineering plastics for precision components, high-barrier packaging, and high-temperature applications.

Application

• High-Performance Engineering Plastics: As a base resin for injection molding and extrusion of precision components requiring high strength, stiffness, and thermal resistance.
• Advanced Electronics: Used in connectors, sockets, bobbins, and chip carriers for surface-mount technology (SMT) due to its excellent dimensional stability and low coefficient of thermal expansion.
• Aerospace & Automotive: Manufacture of under-the-hood components, sensors, and lightweight structural parts that must withstand extreme temperatures and aggressive fluids.
• Barrier Films & Packaging: Production of high-barrier multilayer films for sensitive electronic, food, and pharmaceutical packaging to prevent moisture and gas permeation.
• Chemical Processing Equipment: Fabrication of pump components, valve liners, and seals that are resistant to corrosion from acids, bases, and organic solvents.
• Fiber Optics & Telecommunications: Used in fiber optic cable strength members and connectors due to its low dielectric constant and signal integrity.

Basic Information

Product Name	Poly(4-Hydroxybenzoic Acid-Co-6-Hydroxy-2-Naphthoic Acid)
CAS No.	70679-92-4
Molecular Formula	(C7H4O3·C11H6O3)x
Molecular Weight	Polymer (varies by grade)
Synonyms	4-Hydroxybenzoic Acid - 6-Hydroxy-2-Naphthoic Acid Copolymer; Vectra® (Trade Name Series); Liquid Crystalline Polymer (LCP); Thermotropic Liquid Crystal Polymer; Aromatic Copolyester; HBA/HNA Copolymer; Poly(Hydroxybenzoic Acid-Co-Hydroxynaphthoic Acid); p-Oxybenzoyl Copolyester
EINECS	Contact for details

Quality Control

Our Poly(4-Hydroxybenzoic Acid-Co-6-Hydroxy-2-Naphthoic Acid) is manufactured under strict process controls to ensure batch-to-batch consistency and meets high-purity standards for industrial and specialty applications. Quality is verified through a comprehensive suite of analytical tests, including thermal analysis (DSC, TGA), intrinsic viscosity measurement, and compositional analysis. A Certificate of Analysis (COA) detailing key specifications is provided with every shipment to guarantee compliance with your technical requirements.

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 polymer is hygroscopic (moisture-sensitive); keep the original container sealed to prevent moisture absorption, which can affect processing properties. Keep away from strong oxidizing agents and high heat sources.

Specification

Item	Specification
Appearance	Off-white to beige pellets or powder
Melting Point (DSC)	280 - 350 °C (Grade Dependent)
Heat Deflection Temperature (HDT)	> 250 °C
Intrinsic Viscosity	Contact for details
Moisture Content	< 0.1 %
Ash Content	< 0.1 %

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