ChronoThane™ T 93A

About
ChronoThane T is a family of aliphatic ether based polyurethane elastomers. These biocompatible materials possess characteristics such as low coefficient of friction, low extractables, dimensional stability, high impact resistance, and excellent tear strength. ChronoThane T can be tailored to meet specific Melt Flow Index ranges to suit your manufacturing or extrusion processes. These materials are available in hardnesses ranging from 75 Shore A to 75 Shore D. AdvanSource Biomaterials synthesizes and manufactures medical grade materials offering the ability to tailor physical and mechanical characteristics to support and enhance your end product design. These mechanical characteristic’s, critical to the design and development of medical devices, can incorporate a wide range of physical and chemical properties while maintaining core characteristics such as biodurability and biocompatibility. In most materials, specialized characteristics such as the addition of colorant agents or antimicrobial properties (where applicable) can be added to the polymer to provide a homogenous material and limit secondary processing steps. In addition, radiopaque agents may also be incorporated into the formula to provide additional product enhancements and may contain up to 40%, by weight, of a radiopaque agent thus allowing varied-scale visibility options. With an expanding range of secondary operations including custom solution development, prototype coating capabilities, and project management services, ASB’s expert team of chemists, scientists, engineers and industry professionals assist in every stage of customers’ projects, from concept initiation through full-scale manufacture.&&

Product Description
GenericTPU-醚
Material StatusCommercial: Active
FeaturesExcellent Processability,Low extract,High impact resistance,Good Dimensional Stability,Low coefficient of friction,ADCF,Biocompatible,Aliphatic series,Good tear strength
AvailabilitysNorth America
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Melt Flow Rate
170℃,2.16kg2.0 to 26g/10minASTM D1238
Water absorption rate
saturated1.0 to 1.2%ASTM D570

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s A93 ASTM D2240
tensile strength ASTM D638
fracture20.7 to 55.2MPaASTM D638
50% strain4.48 to 6.21MPaASTM D638
100% strain6.89 to 13.8MPaASTM D638
200% strain11.7 to 17.2MPaASTM D638
300% strain17.9 to 29.6MPaASTM D638
Tensile strain
fracture350 to 650%ASTM D638

Process Conditions
injectionNominal valueUnitTest method
Drying temperature – hot air dryer71 to 93°C
Drying time – hot air dryer3.0 to 4.0hr
Dew Point-40°C
Recommended maximum moisture content0.050%

Notes
1. Typical properties: these are not to be construed as specifications.
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