Covestro Makroblend® DP 7665 Polycarbonate + PET, Mineral Filled Impact Grade

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Covestro Makroblend® DP 7665 Polycarbonate + PET, Mineral Filled Impact Grade (discontinued **)
Categories:	Polymer; Thermoplastic; Polycarbonate (PC)
Material Notes:	Developmental product ISO 7792-1-PC/PET,MHPR,-030,MD20 (PC+PET)-blends impact modified Injection molding grade 20 % mineral filled As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Metric	English	Comments

Density	1.35 g/cc	0.0488 lb/in³	ISO 1183
Melt Density	1.16 g/cc @Temperature 270 °C	0.0419 lb/in³ @Temperature 518 °F
Melt Flow	4.6 g/10 min @Load 5.00 kg, Temperature 260 °C	4.6 g/10 min @Load 11.0 lb, Temperature 500 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Modulus	4.20 GPa	609 ksi	ISO 527-1/-2

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm	>= 1.00e+13 ohm-cm	IEC 60093
Surface Resistance	>= 1.00e+15 ohm	>= 1.00e+15 ohm	IEC 60093
Dielectric Constant	3.5 @Frequency 1e+6 Hz	3.5 @Frequency 1e+6 Hz	IEC 60250
	3.7 @Frequency 100 Hz	3.7 @Frequency 100 Hz	IEC 60250
Dielectric Strength	40.0 kV/mm	1020 kV/in	IEC 60243-1
Dissipation Factor	0.0050 @Frequency 100 Hz	0.0050 @Frequency 100 Hz	IEC 60250
	0.020 @Frequency 1e+6 Hz	0.020 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	300 V	300 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	50.0 µm/m-°C	27.8 µin/in-°F	ISO 11359-1/-2
CTE, linear, Transverse to Flow	50.0 µm/m-°C	27.8 µin/in-°F	ISO 11359-1/-2
Specific Heat Capacity	1.59 J/g-°C	0.380 BTU/lb-°F	Melt
Thermal Conductivity	0.200 W/m-K	1.39 BTU-in/hr-ft²-°F	Melt
Deflection Temperature at 0.46 MPa (66 psi)	130 °C	266 °F	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	112 °C	234 °F	ISO 75-1/-2

Processing Properties	Metric	English	Comments
Melt Temperature	260 - 280 °C	500 - 536 °F
	270 °C	518 °F	Injection Molding; ISO 294
Mold Temperature	60.0 - 80.0 °C	140 - 176 °F
	70.0 °C	158 °F	Injection Molding; ISO 10724
	60.0 - 80.0 °C	140 - 176 °F
Ejection Temperature	170 °C	338 °F
Injection Velocity	200 mm/sec	7.87 in/sec	ISO 294
Drying Temperature	110 °C	230 °F
Dry Time	2.00 - 3.00 hour	2.00 - 3.00 hour	Dry air dryer
	2.00 - 3.00 hour	2.00 - 3.00 hour	Fresh air dryer (high speed dryer)
	4.00 - 8.00 hour	4.00 - 8.00 hour	Circulating air drying oven (50 % fresh air)
Moisture Content	<= 0.010 %	<= 0.010 %

Descriptive Properties
Availability	Asia Pacific
	Europe
	Near East/Africa
	North America
	South and Central America
Eff. thermal diffusivity (m²/s)	1.09E-07
Feature	Release agent
Form	Pellets
Process	Injection Molding

**
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PB09836 / 92676

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