ChronoFlex AL®

 EXCEPTIONALLY STRONG, SAFE AND DEPENDABLE 

Aliphatic Polycarbonate-Based Urethanes

 

ChronoFlex AL is a family of biodurable aliphatic polycarbonate-based thermoplastic urethanes designed to overcome surface degradation such as stress-induced microfissures. 

With a long history of reliable performance in both long and short term devices, this medical grade polymer has the versatility to be used across a broad range of applicational areas ranging from oncology and neurology to cardiovascular disease management.

 

These ether-free polyurethane elastomers are biostable and display a low modulus of elasticity, excellent solvent resistance and limited softening in-vivo.

 

These products are adaptable to most standard manufacturing processes and are available in hardnesses ranging from 75 Shore A to 75 Shore D.

 

 

 

 

  • BIODURABLE
  • AVAILABLE IN ANTIMICROBIAL FORMS
  • TAILORED TO MEET MECHANICAL SPECIFICATIONS
  • RELIABLE PERFORMANCE IN LONG AND SHORT TERM IMPLANTABLE DEVICES
  • AVAILABLE IN RADIOPAQUE FORM
  • AVAILABLE IN SOLUTION FORM
  • LIMITED IN-VIVO SOFTENING
  • ESC RESISTANT
  • EXCELLENT CHEMICAL RESISTANCE
  • LOW MODULUS OF ELASTICITY
  • INHERENT MATERIAL STRENGTH
  • USP CLASS VI
  • BIOCOMPATIBLE
  • ANIMAL-FREE ORIGIN CERTIFIED
 

ChronoFlex AL (typical example ranges shown)*

ASTM Standard

Durometer Range Available

75 Shore A – 75 Shore D

 

Specific Gravity

1.10 – 1.40

 D792

Melt Flow

2 – 26 g/10 min | 205° C/3.26 kg

 D1238

MECHANICAL PROPERTY RANGES

Durometer

75A-B20*

55D

75D

ASTM 

Ultimate Tensile Strength (psi)

4000-9000

5000-10000

3000-8000

D638

Tensile (psi)

   

 

  @ 50% elongation

350-650

1500-1800

3000-8000

D638

  @ 100% elongation

550-850

1800-2200

3000-8000

D638

  @200% elongation

800-1200

2800-4200

       -

D638

  @300% elongation

1200-2000

4200-10000

       -

D630

Ultimate Elongation (%)

350-750

200-400

 100-300

D638 

*Data provided herein is meant to show a general range for the ChronoFlex AL product lines; these properties can be tailored to meet specific values based on customer requirements.

 

 

 

 

CHRONOFLEX AL

 

USP CLASS VI TESTED:

ISO TESTED:

MEM Elution

 

Meets ISO 10993-5 guidelines

AGAR Overlay

 

Meets ISO 10993-5 guidelines

Systemic Injection Test

Meets Class VI guidelines

Meets ISO 10993-11 guidelines

Intracutaneous Injection Test

Meets Class VI guidelines

Meets ISO 10993-10 guidelines

Intramuscular Implantation (macro)

Meets Class VI guidelines

 

Pyrogenicity

 

Meets ISO 10993-11 guidelines

Hemolysis

 

Non – Hemolytic

Phthalate Free

 

Does not contain or come in contact with DEHP

Animal-Free Origin Certified

 

BSE/TSE free

ChronoFlex AL 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*

CHRONOFLEX AL

75 Shore A–45 Shore D

55 Shore D–75 Shore D

ZONE 1

380

400

ZONE 2

390

400

ZONE 3

410

410

CLAMP/ ADAPTER

420

410

DIE

420

440

MELT TEMPERATURE

420

420

WATER COOL TEMPERATURE

60

60

SCREEN PACK (all Dutch weave)

600 MESH

600 MESH

* 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 ChronoFlex AL datasheet.

Click on the image below to view the MSDS sheet.

Next Steps

Corporate Headquarters:
229 Andover St
Wilmington, MA 01887
978-657-0075
info@advbiomaterials.com

Click the links below to contact the Regional Sales Offices for

US & Canada:
Eastern Region
Khristine L. Carroll

Western Region
Debbie Hauser

All other inquiries
Customer Service

Europe:
Khristine L. Carroll

Asia:
HnG Medical, Inc. China

India/Egypt:
Vitae Core, Inc.