Mitsubishi Chemical Corporation
Polymer Compounds Business Group
Low protein adsorption, medical-grade compound
ABOUT
Zelas™ CP is a polymer compound product based on amorphous polyolefins, offering high transparency.
This formulation is ideally suited for use in medical devices such as vials and syringes, where low adsorption and hygiene are required for pharmaceuticals.
It offers excellent heat-sealing properties and adhesion to dissimilar materials, making it suitable for two-color molding and as a soft bag for medical devices, contributing to improved design of medical device components.
*Regarding industrial applications,Tefabloc™ CPWe are introducing this to you.
FEAUTURE
Features of Zelas™ CP
1. High transparency
It exhibits high transparency in the ultraviolet to visible light range.
It exhibits no autofluorescence in the 380-600nm range, making it suitable as a consumable component in the biochemistry field.
*Special grades that do not exhibit autofluorescence in the UV range are also available; please contact us for details.
2. Low molecular weight drugs/biopharmacies: Low adsorption
We offer grades with low adsorption to protein drugs, such as antibody drugs (IgG) and serum proteins (fibrinogen).
3.Adhesion to olefin materials
Polypropylene (PP), polyethylene (PE), cyclic polyolefin resin (COP),
It exhibits high fusion properties to styrene-based elastomers (TPS), etc.
*If adhesion to resins other than olefins or to metals is required,Tefabloc™ CPWe are introducing this to you.
4.Lowtemperature adhesion
Heat bonding is possible from low temperatures (60°C) without pretreatment such as excimer or corona treatment.
Flow channel (dimensions indicated): 2mm thick (flow channel depth: 40μm), lid: 2mm thick
Bonding conditions: Press temperature (see table on the right), pressure 0.1 MPa, time 5 min
<result>
++: Good fusion +: Insufficient fusion －: Partial collapse of the flow path
--: Flow path collapsed --: No fusion
5.Regarding compliance with regulations in various countries
Japanese Pharmacopoeia 7.02 Test Methods for Plastic Pharmaceutical Containers: Leaching/Ashing Test
United States Pharmacopeia (USP) Class VI compliant grades available.
6. Laser welding possible
It is also suitable for laser welding.
What is laser welding? (Provided by Marubun Corporation)
Series lineup and physical properties list
item | Test method | unit | CP101 | CP207 | CP208 | CP209 |
Features | high transparency | Low protein drug adsorption | Low protein drug adsorption | Low protein drug adsorption | ||
Application example | Injection general | Syringe | Vials/Microchannels | Single Chamber Bag | ||
MFR (230℃, 21N) | ISO 1133 reference | g/10min | ７ | ５ | １ | ４ |
Flexural modulus | ISO 178 Reference | MPa | 2000 | 1700 | 1600 | 1100 |
Total light transmittance | ISO 14782 reference | % | 91 | 91 | 91 | 91 |
Haze (2mm thick) | ISO 14782 reference | % | 1.5 | 3.0 | 1.5 | 7.0 |
*The above figures are representative values and not guaranteed values.
Issued:Oct.2025
Related articles
Examples of applications as a low-adsorption container
Zelas™CP hydrophilization
Thermal fusion with COP
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
Inspection equipment
Pharmaceutical packaging
Laboratory and chemical consumables
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
Copyright © Mitsubishi Chemical Corporation, Polymer Compounds Business Group