Commodity Plastics
PMP Transparent High Temp — Poly(4-methyl-1-pentene) for High-Temperature Transparent Applications
PMP is a unique polyolefin offering excellent transparency, high heat resistance, low specific gravity, and good chemical resistance. It is used in specialized applications like microwave cookware, medical syringes, laboratory ware, and high-temperature films.
PMPTPXTPXMitsui TPX
Manufacturers
2
Grades
3
Applications
4
Equivalents
2
Physical Properties
- Density
- 0.830-0.840 g/cm³
- Water Absorption (24h)
- <0.01 %
- Transparency
- Excellent
- Shrinkage
- 1-3 %
Mechanical Properties
- Young's Modulus
- 1.0-1.5 GPa
- Tensile Strength
- 25-35 MPa
- Elongation at Break
- 10-30 %
- Impact Strength (Izod)
- 15-25 J/m
Thermal Properties
- Glass Transition Temperature
- N/A (amorphous)
- Melting Point
- 220-240 °C
- Continuous Service Temperature
- 100-140 °C
- Heat Deflection Temperature
- 80-100 °C
Electrical Properties
- Dielectric Constant
- 2.1-2.2
- Volume Resistivity
- >10¹⁶ Ω⋅cm
- Dielectric Strength
- 20-30 kV/mm
Chemical Resistance
- Acids
- Excellent resistance
- Bases
- Excellent resistance
- Solvents
- Good resistance at room temp, swells in hot aromatic and chlorinated hydrocarbons
- UV Resistance
- Fair (requires stabilization)
Sustainability
- Recyclability
- Recyclable
- Recycling Code
- 7 (Other)
- Carbon Footprint
- Moderate
Manufacturing compatibility
Injection moldingBlow moldingExtrusion
Applications
Microwave cookware
Medical syringes
Laboratory ware
Release films
Available grades
TPX RT310TPX HX300TPX CM01 A1