Description

1,4-Benzenediol Polymer With 4-Hydroxybenzoic Acid, 6-Hydroxy-2-Naphthalenecarboxylic Acid And 2,6-Naphthalenedicarboxylic Acid is a high-performance, multi-component aromatic copolyester engineered for demanding applications. This polymer's unique structure, incorporating hydroquinone, hydroxybenzoic acid, and naphthalene-based monomers, provides an exceptional balance of thermal stability, chemical resistance, and mechanical properties. It is a critical material for manufacturers in advanced engineering plastics, specialty films, and high-barrier packaging sectors seeking reliable performance under extreme conditions.

Application

• High-Temperature Engineering Plastics: As a base resin for injection molding or extrusion of components requiring long-term thermal stability and creep resistance.
• Barrier Films and Packaging: Used in multi-layer films for food and pharmaceutical packaging to provide excellent gas and moisture barrier properties.
• Specialty Fibers: For the production of high-strength, high-modulus fibers used in industrial textiles and advanced composites.
• Electrical and Electronic Components: In connectors, insulators, and circuit board substrates where dimensional stability and dielectric properties are critical.
• Automotive Under-the-Hood Parts: Suitable for components exposed to high temperatures, fuels, and lubricants, such as sensor housings and connectors.
• Chemical Processing Equipment: For linings, seals, and parts that must withstand exposure to aggressive chemicals and solvents.

Basic Information

Item	Detail
Product Name	1,4-Benzenediol Polymer With 4-Hydroxybenzoic Acid, 6-Hydroxy-2-Naphthalenecarboxylic Acid And 2,6-Naphthalenedicarboxylic Acid
CAS No.	146647-94-1
Molecular Formula	(C6H6O2·C7H6O3·C11H8O3·C12H8O4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(hydroquinone/4-hydroxybenzoic acid/6-hydroxy-2-naphthoic acid/2,6-naphthalenedicarboxylic acid); Aromatic Copolyester from HQ, HBA, HNA, and NDA; Liquid Crystal Polymer (LCP) Copolyester; Thermotropic Copolyester; Vectra®-type Copolymer; HQ/HBA/HNA/NDA Copolymer; 4,4'-Dihydroxybiphenyl-free LCP Alternative; High-Performance Engineering Polyester
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems, ensuring batch-to-batch consistency for critical performance parameters like intrinsic viscosity, thermal transition temperatures, and melt stability. Quality is verified through a suite of analytical techniques including Gel Permeation Chromatography (GPC), Differential Scanning Calorimetry (DSC), and Thermogravimetric Analysis (TGA). A comprehensive Certificate of Analysis (COA) detailing lot-specific specifications is provided with every shipment.

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, strong bases, and organic solvents. The material is supplied as a solid polymer; ensure the storage area is free from excessive dust and contaminants.

Specification

Item	Specification
Appearance	Off-white to pale yellow pellets or powder
Identification (IR)	Conforms to structure
Inherent Viscosity	4.0 - 8.0 dL/g (typical, 0.5% in pentafluorophenol at 30°C)
Glass Transition Temperature (Tg)	120 - 150 °C
Melting Temperature (Tm)	280 - 320 °C
Thermal Decomposition Temperature (Td 5%)	> 400 °C
Ash Content	< 0.1 %
Moisture Content	< 0.05 %

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