This biocompatible elastomer may be considered as a substitute for rubber, latex and silicone materials. Though soft and compliant, the ChronoPrene resins offer a high flexural modulus, as well as a superior combination of tensile strength and elongation.
An easy molding, high-flow rubber, ChronoPrene can be processed using conventional extrusion, injection molding and blowmolding methods. Its physical properties make it an optimal material for applications requiring rubber or elastic characteristics, such as compliant/ non-compliant balloons, endoscopic and laparoscopic inflation bags.
ChronoPrene can be processed at low temperatures, resulting in excellent surface smoothness and superior elasticity. ChronoPrene exhibits high abrasion resistance, durability and UV stability and is available in hardnesses ranging from 5 Shore A to 75 Shore A.
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CHRONOPRENE (typical example ranges shown)* | ASTM Standard | |
Durometer Range Available | 5 Shore A – 75 Shore A | |
Melt Flow | 2-26 g/10 min । 190º-205° C/ 2.16-8.26 kg | D1238 |
Mechanical Properties
Durometer | 5A | 15A | 40A | 75A | ASTM |
Ultimate Tensile Strength (psi) | 50-100 | 900-1300 | 400-600 | 1200-1400 | D638 |
Tensile (psi) |
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@ 50% elongation | 2 - 10 | 20-30 | 70-90 | 825-975 | D638 |
@ 100% elongation | 10 - 20 | 40-50 | 110-130 | 975-1100 | D638 |
@ 200% elongation | 20 - 30 | 60-80 | 160-180 | 1100-1300 | D638 |
@ 300% elongation | 30 - 35 | 80-100 | 210-230 | 1300-1400 | D638 |
Ultimate Elongation (%) | 700-900 | 1700-1950 | 600-900 | 250-350 | D638 |
*Data provided herein is meant to show a general range for the ChronoPrene product lines; these properties can be tailored to meet specific values based on customer requirements.
CHRONOPRENE
| CYTOTOXICITY: | CLASS VI TESTED: | OTHER TESTING: |
MEM Elution | Pass – Meets ISO 10993-5 guidelines | ||
AGAR Overlay | Pass – Meets ISO 10993-5 guidelines | ||
Systemic Injection Test | Pass – Meets the USP guidelines for Class VI | ||
Intracutaneous Injection Test | Pass – Meets the USP guidelines for Class VI | ||
Intramuscular Implantation (macro) | Pass – Meets the USP guidelines for Class VI | ||
Phthalate Free | Does not contain or come in contact with DEHP | ||
Animal-Free Origin Certified | BSE/TSE free |
ChronoPrene processing can be optimized by drying to a moisture content equal to or less than 0.05% by weight prior to melt processing.
Typically, the pellets must be dried for 3-4 hours with a dryer inlet air temperature of 180ºF +/- 20ºF. We recommend a machine-mounted desiccant-type hopper dryer, capable of reaching and maintaining a dew point of -40ºF. If dry times are in excess of 8-10 hours, a hopper dryer temperature of 120-150ºF is usually sufficient to achieve optimal moisture content.
Typical Material Processing Temperatures in Fahrenheit with a tolerance of +/- 20ºF*
CHRONOPRENE | 5 Shore A – 75 Shore A |
ZONE 1 | 360 |
ZONE 2 | 360 |
ZONE 3 | 380 |
CLAMP/ADAPTER | 380 |
DIE | 360 |
* These profiles are meant to offer a general guideline for processing the materials via extrusion or injection molding. The table reflects a suggested range of temperature profiles and set up conditions which should be adjusted to accommodate your individual machine configurations and processing parameters.
Click on the image below to view the ChronoPrene datasheet.
Click on the image below to view the ChronoPrene MSDS.
