Durastrength® 440 is an acrylic-based impact modifier designed to enhance ambient and cold-temperature impact performance in polycarbonate (PC) and PC blends.

Enhanced TDS

Identification & Functionality

Chemical Family
Manufactured By
Plastics & Elastomers Functions
Technologies
Product Families

Features & Benefits

Materials Features
Products Benefits
  • The low Tg core of the Durastrength® 440 impact modifier enables it to be used in applications typically reserved for MBS modifiers. For demanding low temperature applications, it can be used to create products that can withstand -40°C and still remain ductile.

Impact Performance of Durastrength® 440 IM in Polycarbonate

 

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ASTM Da256 specifications for notched Izod. Formulation is 5% impact modifier in a 12 MFR polycarbonate.

 

  • Durastrength® 440 all-acrylic impact modifier provides the excellent weatherability for which acrylics are known, opening the door for use in applications that demand retention of color and mechanical properties upon exposure to the elements.
  • The properties of Durastrength® 440 impact modifier have been optimized to provide a readily dispersed modifier that has a minimal impact on the color of molded parts. Conventional acrylics can give a faded appearance and inhomogeneous mold-in color. Durastrength® 440 impact modifier overcomes these deficiencies permitting the use of acrylic modifiers in the molding of high-viscosity resins into thin-walled geometries.

 

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Color Stability of Durastrength® 440 IM During High-Speed Injection Molding

Formulation contained 5% impact modifier and 0.5% blue pigment in an 11 MFR polycarbonate. Molded at 300°C through a 2 mm x 6 mm gate.

  • Durastrength® 440 impact modifier has minimal effect on other polymer properties.

Applications & Uses

Markets
Applications
Compatible Polymers & Resins
Plastics & Elastomers End Uses
Suggestions for Use

Durastrength® 440 impact modifier is recommended for use in PC and PC blends where superior low temperature impact and weatherability are required. Durastrength® 440 impact modifier is targeted for use in automotive applications, lawn and garden equipment, and recreational vehicles where weatherability and good low temperature impact are important. Prospective clients should evaluate Durastrength® 440 impact modifier in their own laboratories to establish optimum conditions in their processes and applications. Arkema’s Technical Service Team is available to discuss your application requirements provide formulation guidance and laboratory testing as needed.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
AppearanceWhite Powder--
Bulk Density0.5g/cc-
Particle Size (on 50 Mesh)max. 2%-
Percent Volatilemax. 1.0%-
Physical FormWhite Powder--
Specific Gravity1.09--
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Auto Ignition Tempertaure470°C-
Bulk Densityapprox. 500kg/m³-
ColorWhite--
FormPowder--
Insoluble inWater (20°C)--
OdorIrritating--
Particle Size0.01 - 0.5mm-
Physical StateSolid--
Specific Gravity (Relative density, Water=1 (liquid))109--

Regulatory & Compliance

Safety & Health

Environment and Safety Information

Before handling this material, read and understand the MSDS (Material Safety Data Sheet) / SDS (Safety Data Sheet) for additional information on safety, health and environmental information. The MSDS/SDS are available on our website www.arkema.com or upon request at our Customer Service Department. Arkema believes strongly in Responsible Care® as a public commitment.

Packaging & Availability

Packaging Type
Product Packaging

Durastrength® 440 impact modifier is packaged in 25 kg bags and 1,000 lb bulk bags.