Engineering Resin B

Engineering Resin B is a semi-crystalline Polycarbonate (PC) copolymer/Polybutylene Terephthalate (PBT) opaque blend. This grade offers medium flow, UL V0 rating @ 1.5 mm, and high ductility in combination with excellent chemical resistance. It is available for custom coloring and may be an excellent candidate for a wide variety of applications that need improved chemical resistance.

Brand: Engineering (3 products)

Polymer Name: PC/PBT Alloy

Processing Methods: Injection Molding

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Additives Included
Polymer Name
Plastics & Elastomers Functions
Technologies
Product Families

Features & Benefits

Materials Features
Product Highlights

Improved Chemical Resistance Materials for Medical Enclosures and Housings


With patient safety at the forefront, the healthcare industry is mobilizing to address the concerns of increasing patient infections associated with medical care, known as hospital-acquired infections (HAIs). To help meet this challenge, medical equipment and high touch surfaces in patient care settings are repeatedly wiped down with increasingly aggressive chemical disinfectants.

Chemical Resistance Data - Environmental Stress Cracking (ESC) Performance

Compared to traditional PC, ABS, PBT and co-polyester resins and blends which are potentially incompatible with highly aggressive disinfectants such as quaternary ammonium compounds the new Engineering Resin B resins can help prevent stress cracking and mitigate crack propagation.

SABIC’s Engineering Resin B resins leverage unique copolymer technology to provide improved chemical resistance for healthcare devices and equipment, compared to existing materials used such as PC/ABS, PC/PBT, or co-polyester resins and blends.

 

 

Performance Properties

Engineering Resin B copolymer resins are a new family of polycarbonate copolymers that
can provide improved chemical resistance. These resins are based on unique copolymer
building block blends offering a combination of:

  • Improved Chemical Resistance: Improved chemical resistance to a range of chemical disinfectants
  • Impact Retention: Retention of ductility upon exposure to chemicals.
  • Processability: Potentfoir ahilgh productivity molding and cycle time reduction.
  • Flame Retardancy: V0 rating up to1.5 mm thickness
  • Esthetics: Consistent opaque color and appearance

Applications & Uses

Markets
Applications
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Potential Applications
  • Insulin pump
  • Infusion pump
  • Dental chair components
  • Ultrasound monitor
  • Hospital bed components
  • Surgical tools
  • Imaging devices

Properties

Color (Properties)
Flame Rating
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity⁴⁹1.3-ASTM D792
Mold Shrinkage - xflow¹²,⁴⁹0.9 - 1.6%SABIC method
Mold Shrinkage - flow¹²,⁴⁹1 - 1.6%SABIC method
Melt Volume Rate (at 250°C/5 kg)⁴⁹10cm³/10 minASTM D1238
Melt Flow Rate (at 250°C/5.0 kgf)⁴⁹11.5g/10 minASTM D1238
Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Stress at Yield (Type I, 50 mm/min)⁴⁹44MPaASTM D638
Tensile Stress at Break (Type I, 50 mm/min)⁴⁹36MPaASTM D638
Tensile Strain at Yield (Type I, 50 mm/min)⁴⁹4%ASTM D638
Tensile Strain at Break (Type I, 50 mm/min)⁴⁹59%ASTM D638
Tensile Modulus (50 mm/min)⁴⁹1985MPaASTM D638
Flexural Strength (1.3 mm/min, 50 mm span)⁴⁹72MPaASTM D790
Flexural Modulus (1.3 mm/min, 50 mm span)⁴⁹1985MPaASTM D790
Thermal Properties
ValueUnitsTest Method / Conditions
Vicat Softening Temperature Rate (B/50)⁴⁹131°CASTM D1525
Vicat Softening Temperature Rate (B/120)⁴⁹132°CASTM D1525
HDT - Unannealed (1.82 MPa, 3.2mm)⁴⁹66°CASTM D648
HDT - Unannealed (0.45 MPa, 3.2 mm)⁴⁹118°CASTM D648
CTE - xflow (at -40°C to 40°C)⁴⁹0.0001051/°CASTM E831
CTE - flow (at -40°C to 40°C)⁴⁹8.5e-051/°CASTM E831
Impact Properties
ValueUnitsTest Method / Conditions
Izod Impact Unnotched (at 23°C)⁴⁹NBJ/mASTM D4812
Izod Impact Notched (at -30°C)⁴⁹150J/mASTM D256
Izod Impact Notched (at 23°C)⁴⁹590J/mASTM D256
Izod Impact - Unnotched (at -30°C)⁴⁹NBJ/mASTM D4812
Izod Impact - Notched (at 0°C)⁴⁹230J/mASTM D256
Instrumented Dart Impact Total Energy (at 23°C)⁴⁹54JASTM D3763
Instrumented Dart Impact Energy at Peak (at 23°C)⁴⁹41JASTM D3763
Injection Molding
ValueUnitsTest Method / Conditions
Vent Depth⁴²0.025 - 0.038mm-
Shot to Cylinder Size⁴²40 - 80%-
Screw Speed⁴²50 - 100rpm-
Rear - Zone 1 Temperature⁴²225 - 240°C-
Nozzle Temperature⁴²240 - 255°C-
Mold Temperature⁴²50 - 70°C-
Middle - Zone 2 Temperature⁴²230 - 245°C-
Melt Temperature⁴²240 - 255°C-
Maximum Moisture Content⁴²0.02%-
Front - Zone 3 Temperature⁴²235 - 250°C-
Drying Time⁴²2 - 4Hrs-
Drying Temperature⁴²120°C-
Back Pressure⁴²0.3 - 0.7MPa-
Flame Characteristics
ValueUnitsTest Method / Conditions
UL Recognized 94V-0 Flame Class Rating²⁹,⁵⁹1.5mmUL 94
Note
  • ⁴² Injection Molding parameters are only mentioned as general guidelines. These may not apply or may need adjustment in specific situations such as low shot sizes, large part molding, thin wall molding and gas-assist molding.
  • ⁴⁹ The information stated on Technical Datasheets should be used as indicative only for material selection purposes and not be utilized as specification or used for part or tool design.
  • ⁵⁹ UL Ratings shown on the technical datasheet might not cover the full range of thicknesses and colors. For details, please see the UL Yellow Card.
  • ¹² Measurements made from laboratory test coupon. Actual shrinkage may vary outside of range due to differences in processing conditions, equipment, part geometry and tool design. It is recommended that mold shrinkage studies be performed with surrogate or legacy tooling prior to cutting tools for new molded article
  • ²⁹ UL Ratings shown on the technical datasheet might not cover the full range of thicknesses and colors. For details, please see the UL Yellow Card.

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Plastics Determination of Resistance to ESC Method

SABIC’s Environmental Stress Cracking (ESC) method evaluates retention of tensile properties vs. control for up to 7 days.

SABIC ESC Method:
per ASTM D543

Strain Level: 1% Strain

Exposure conditions: 23°C

Applications Saturation Method

% Mold Shrinkage Exposure Days SANI-CLOTH® Bleach SANI-CLOTH® HB SANI-CLOTH® AF3 SANI-CLOTH® plus DiverseyOxivir® TB Trichlorosocynuric Acid Cavicide® Caviwipes1 SANI-CLOTH® prime Virex® II 256 Virex® TB CIDEX® OPA Solutions Ethanol
Product     σ y Σ b σ y Σ b σ y Σ b σ y Σ b σ y Σ b σ y Σ b σ y Σ b σ y Σ b σ y Σ b σ y Σ b σ y Σ b σ y Σ b
PC/ABS 0.6 7 ♦♦♦ ♦♦♦ ♦♦♦ ♦♦♦ ♦♦♦ ♦♦♦ ♦♦ ♦♦♦ ♦♦ - - - - ♦♦♦ ♦♦♦ ♦♦♦ ♦♦♦ ♦♦♦ ♦♦♦
PC/PBT 1 7 ♦♦♦ ♦♦ ♦♦♦ ♦♦
CRX5421 Resin 1.3 7 ♦♦
CRX9421 Resin 1.3 7
CRX1414 Resin 0.6 7 ♦♦ ♦♦♦
0.6 3 - - - - - - - - - - - - - - - - ♦♦♦ - - - -
CRX9411 Resin 0.6 7 ♦♦ ♦♦♦
0.6 3 - - - - - - - - - - - - - - - - - - - -

 

Compatibiliy Criteria color rating Tensile stress at yield retention ay (%)

Tensile Elongation at break retention (Eb) %

Compatible (♦) > 90 80 - 139
Marginal (♦♦) 80 - 89 65 - 79
Not compatible (♦♦♦) <79 <64 or >140

Packaging & Availability

Country Availability
Regional Availability
  • Asia
  • Europe
  • North America