Mitsubishi Chemical Corporation
Polymer Compounds Business Group
Low dielectric, transparent, and highly weather-resistant resin
ABOUT
Tefabloc™ CP is a product based on amorphous polyolefins, and not only does it have high transparency,
It possesses unique properties not found in other cyclic olefins (COP/COC).
We are developing applications for optical uses such as solar panel cover materials that leverage transparency, and applications for high-speed communication such as 5G and 6G that leverage low dielectric properties.
We can also design products to meet your specific requirements.
*If considering medical use, Zelas™ CPWe are introducing this to you.
FEAUTURE
Features of Tefabloc™ CP
- For optical applications
- For high-speed communication (low dielectric) applications
For optical applications
1: High transparency
It has high transmittance in the ultraviolet to visible light range.
2: Excellent weather resistance
Because it has excellent weather resistance and is resistant to yellowing, it can be used in applications where transparency is required over the long term.
<Accelerated testing>
3: Excellent moisture absorption
Because it is an olefin-based material, it has excellent low moisture absorption and can be used in outdoor applications.
4: UV-resistant grade (CP103R)
The UV-C resistant grade has the ability to transmit UV-C light, which is not transmitted by general transparent resins, and also has a certain level of durability against UV-C light, which is extremely damaging to resins.
5. Others
Insert molding allows for strong fusion with polyolefin resins such as polypropylene.
<Changes in haze due to weathering resistance test (60°C, with rain)>
For high-speed communication (low dielectric) applications
1: Excellent low dielectric properties
Excellent dielectric loss and dielectric constant even at high frequency tolerances.
It has low dielectric properties.
2: Adhesion to dissimilar materials
Tefabloc™ CP adhesion grade is suitable for various metals (SUS, AI, Cu) and
It exhibits high adhesion to resins (PP, PE, COP, EVOH, PA).
Product lineup and physical properties list
- Charges for optical applications
- Grade for high-speed communication applications
Charges for optical applications
item | Test method | Test conditions | unit | CP101 | CP102R | CP103R |
Density | ISO 1183 reference | - | g/ cm³ | 0.94 | 0.94 | 0.94 |
Meltflow rate | ISO 1133 reference | 230℃, 21.2N | g/10min | 7 | 1 | 1.5 |
Tensile breaking strength | ISO 527 reference | 1A type, | MPa | 35 | 34 | 34 |
Tensile fracture strain | % | 10 | 15 | 15 | ||
Flexural modulus | ISO 178 Reference | - | MPa | 2000 | 1850 | 1850 |
Bending stress | MPa | 70 | 70 | 70 | ||
Charpy impact strength | ISO 179 Reference | 23°C | kJ/ m² | 2 | 4 | 4 |
23°C | kJ/ m² | 20 | 50 | 50 | ||
Haze | ISO 14782 reference | 2mmt | ％ | 1.5 | 1.5 | 1.5 |
Total light transmittance | % | 91 | 91 | 91 | ||
Refractive index | ISO 489 reference | - | - | 1.51 | 1.51 | 1.51 |
Vicat softening temperature | ISO 306 reference | 50℃/hr, 10N | °C | 114 | 116 | 116 |
Water absorption rate | ISO 760 reference | Karl Fischer process 180°C | % | <0.01 | <0.01 | <0.01 |
*The above figures are representative values and not guaranteed values.
Issued: May 2025
Grade for high-speed communication applications
item | Test method | Test conditions | unit | ZelasTM | CP403 | CP404 |
Meltflow rate | ISO 1133 reference | 230℃, 21.2N | g/10min | 7 | 2 | 5 |
Dielectric constant | ASTM D2520 reference | 10GHz | - | 2.23 | 2.19 | 2.18 |
40GHz | - | 2.23 | 2.21 | 2.20 | ||
Dielectric loss (tan δ) | ASTM D2520 reference | 10GHz | - | 0.0001 | 0.0009 | 0.0002 |
40GHz | - | 0.0002 | 0.0011 | 0.0004 | ||
Vicat softening temperature | ISO 306 reference | 50℃/hr, 10N | °C | 114 | 145 | 145 |
Water absorption rate | ISO 760 reference | Karl Fischer process 180°C | % | <0.01 | 0.1 | <0.01 |
Toluene soluble (60°C) | - | - | - | △ | 〇 | 〇 |
Solution stability | - | - | - | × | 〇 | 〇 |
remarks | - | - | - | - | Responsive |
*The above figures are representative values and not guaranteed values.
Issued:Sep.2025
For the export of chemical products, we will check the regulations of each country and then respond regarding whether or not we can provide them.
Please be sure to include information such as the exporting country.
Please note that for some products, we may not be able to offer or provide a different grade.
CASE
Application example
Solar power generation cover material
Communication cover antenna
(Radome) Drone enclosure, etc.
Low dielectric printed circuit board materials
(CCL, FCCL, adhesives, etc.)
CONTACT
Before you start worrying about selecting and developing resin materials
Please contact Mitsubishi Chemical.
Polymer Compounds Business Group Products
Useful resources are available here.
Please feel free to ask any questions.
Please contact us.
The above information is based on the latest available information as of the date of creation and may be revised in the future based on new information.
Furthermore, this information is provided as general technical information and reference material, and we do not guarantee the accuracy or completeness of the content.
Product performance and characteristics may vary depending on usage conditions, processing conditions, etc. The final decision regarding applicability and design is the customer's responsibility.
We will check the regulations of each country regarding the export of chemical products and then respond whether or not we can provide them. Please be sure to include information such as the exporting country.
Depending on the product, we may suggest a different grade or may not be able to provide the product at all.
Mitsubishi Chemical Corporation
Polymer Compounds Business Group
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