Description

Bicyclo2.2.1Hept-2-Ene, Polymer With Ethene is a high-performance copolymer derived from norbornene and ethylene, known for its unique cyclic olefin structure. This material is valued for its exceptional optical clarity, high thermal stability, and excellent moisture barrier properties, making it a critical component in advanced material science. It is primarily sought by manufacturers in the optics, electronics, and specialty packaging industries for applications demanding superior dimensional stability and chemical resistance.

Application

• Optical Lenses and Films: Used as a core resin for high-precision optical components, lenses, and display films due to its outstanding transparency and low birefringence.
• Microelectronics Packaging: Serves as a dielectric layer and protective coating in semiconductor devices, leveraging its excellent electrical insulation and moisture barrier performance.
• Specialty Medical Devices: Employed in the production of diagnostic equipment components, labware, and medical packaging where clarity, sterility, and chemical resistance are paramount.
• High-Barrier Packaging: Utilized in multilayer films and coatings for pharmaceutical and food packaging to extend shelf life by providing an exceptional barrier against gases and water vapor.
• Adhesives and Sealants: Acts as a modifying agent in high-performance adhesive formulations to enhance heat resistance and bonding strength.
• Engineering Plastics & Composites: Used as a modifier or base polymer in advanced composite materials to improve toughness, thermal properties, and dimensional stability.

Basic Information

Product Name	Bicyclo2.2.1Hept-2-Ene, Polymer With Ethene
CAS No.	26007-43-2
Molecular Formula	(C9H12·C2H4)n
Molecular Weight	Varies (Polymer)
Synonyms	Ethylene-Norbornene Copolymer; Cycloolefin Copolymer (COC); TOPAS® (Common Trade Name); Poly(ethylene-co-norbornene); Bicyclo[2.2.1]hept-2-ene polymer with ethene; Norbornene-Ethylene Copolymer; COP (Cyclo Olefin Polymer); 1,2,3,3a,7a-η-1H-Indene, 2,3-dihydro-, polymer with ethene
EINECS	Contact for details

Quality Control

Our Cycloolefin Copolymer (COC) is manufactured under a stringent quality management system. Each batch undergoes rigorous testing for key parameters including intrinsic viscosity, glass transition temperature (Tg), optical clarity, and residual monomer content to ensure consistent performance and purity. Certificates of Analysis (COA) detailing lot-specific results are available upon request, supporting compliance with relevant industry standards.

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). Keep away from strong oxidizing agents and heat sources to maintain polymer integrity.

Specification

Item	Specification
Appearance	Colorless to faint yellow pellets or granules
Glass Transition Temperature (Tg)	70 - 180°C (Grade Dependent)
Light Transmittance (at 550 nm)	> 90%
Water Absorption (24h)	< 0.01%
Melt Flow Rate (MFR)	1 - 100 g/10min (230°C/2.16kg)
Density	1.01 - 1.02 g/cm³

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