Description

2,6-Naphthalenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid And 1,2-Ethanediol is a high-performance engineering polymer, specifically a copolyester derived from naphthalene and terephthalic acid units. This material is engineered to deliver superior thermal stability, mechanical strength, and excellent barrier properties compared to conventional polyesters. It is a critical raw material for manufacturers in the packaging, electronics, and specialty fibers industries seeking advanced material solutions.

Application

• High-Performance Packaging Films: Used to produce biaxially oriented films (BOPEN) for food packaging, electronics, and industrial applications, offering exceptional gas barrier properties and thermal resistance.
• Engineering Plastics and Resins: Serves as a key monomer for manufacturing PEN (Polyethylene Naphthalate) and copolyester resins, which are used in automotive parts, electrical components, and durable goods.
• Specialty Fibers: Employed in the production of high-strength, high-modulus fibers for industrial textiles, tire cord, and advanced composites.
• Barrier Coatings: Applied as a coating material to enhance the barrier performance of containers and packaging against oxygen, carbon dioxide, and moisture.
• Electronic Materials: Utilized in the manufacture of flexible printed circuits (FPC), insulating films, and other components requiring high dimensional stability and heat resistance.

Basic Information

Product Name	2,6-Naphthalenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid And 1,2-Ethanediol
CAS No.	25915-92-8
Molecular Formula	(C₁₂H₆O₄·C₈H₆O₄·C₂H₆O₂)x
Molecular Weight	Polymer - Contact for details
Synonyms	PEN Copolymer; Poly(ethylene 2,6-naphthalate-co-terephthalate); 2,6-NDA/TPA/EG Copolymer; Poly(ethylene naphthalate-co-terephthalate); NDAT Copolyester; Poly(oxy-1,2-ethanediyloxycarbonyl-2,6-naphthalenediylcarbonyl-co-oxy-1,2-ethanediyloxycarbonyl-1,4-phenylenecarbonyl); 2,6-Naphthalenedicarboxylic acid polymer with 1,4-benzenedicarboxylic acid and ethylene glycol
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to stringent quality management systems to ensure batch-to-batch consistency and performance. Key parameters such as intrinsic viscosity (IV), carboxyl end group content, thermal properties (DSC), and color are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the original container sealed until use to prevent moisture absorption, which can affect processing and final product properties.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Intrinsic Viscosity (IV)	0.50 - 0.80 dL/g (or as specified)
Melting Point (DSC)	260 - 280 °C
Carboxyl End Group Content	≤ 35 mmol/kg
Moisture Content	≤ 0.1 %
Ash Content	≤ 0.05 %
Color (L* value)	≥ 80

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