Cyclic olefin copolymer COC is a transparent and highly pure non-crystalline resin.
COC is a cyclic olefin copolymer obtained by the copolymerization of bicycloheptene (norbornene) monomer and ethylene monomer under the action of metallocene catalyst. The heat distortion temperature is determined by the content of comonomers, the higher the content of cycloolefins, the higher the heat resistance.
Main performance characteristics of COC membrane:
High transparency - 91% light transmittance;
Excellent optical properties - low birefringence, high Ampere number
Low specific gravity—the specific gravity is below 1.02
High heat resistance - Tg reaches 178°C
Low hygroscopicity - dimensional stability, stable optical properties
Good water vapor airtightness - easy to store the contents
Low dielectric constant, low dielectric loss - low loss of high-frequency signals
High rigidity, high strength
Ease of cutting
COC film has excellent high-frequency dielectric properties, low humidity, high heat resistance, good dimensional stability, etc., and is suitable for high-performance electronic products, including antennas for mobile devices such as mobile phones and tablet computers.