Polybutene-1 PB 8340M

Category: PB , Polybutylene
Manufacturer: LyondellBasell Industries
Trademark: Polybutene-1
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: pMNi3E_Polybutene-1-PB-8340M.pdf
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Polybutene-1 grade PB 8340M is a random copolymer of butene-1 with low ethylene content.
In blends with PE polymers, it forms a separate, but well-dispersed phase. Its primary use is as a minority blend component in the seal layer of easy-opening packaging films, produced by cast film extrusion. A typical PE blend partner for PB 8340M could be any ethylene homo-or copolymer in the melt index range of 2.0 to 8.0 g/10min.

Polybutene-1 is also highly compatible with polypropylene due to its similar molecular structure, and it can be used to modify PP sealing behavior or mechanical properties such as impact strength. PB-1 crystallizes slowly and is very shear sensitive in its flow behavior.

Food law compliance information about this product can be found in separate product documentation.

This product is not intended for use in medical and pharmaceutical applications.
General Information
Features
  • Impact resistance, good
  • Random copolymer
Uses
  • Films
  • Mixing
  • cast film
  • Seals
Forms
  • Particle
Processing Method
  • Extrusion
  • cast film
PhysicalNominal ValueUnitTest Method
Density 0.911g/cm³ISO 1183
Melt Mass-Flow Rate (MFR) ISO 1133
    190°C/10.0 kg 100g/10 minISO 1133
    190°C/2.16 kg 4.0g/10 minISO 1133
MechanicalNominal ValueUnitTest Method
Tensile Stress (Break)30.0MPaISO 527-2
Tensile Strain (Break)300%ISO 527-2
Flexural Modulus 270MPaISO 178
ThermalNominal ValueUnitTest Method
Melting Temperature (DSC) DSC
    -- 197.0°CDSC
    -- 2113°CDSC
Additional Information
Tm2 corresponds with the melting point of crystalline form 2 which is measured immediately after solidification. Tm2 corresponds with the melting point available for each batch on the Certificate of Analysis (COA).
ExtrusionNominal ValueUnit
Melt Temperature 180 - 200°C
Extrusion instructions
Recommended processing temperatures: 180°C to 200°C. In cases were higher temperatures are required please contact your appropriate technical contact for support.
Note Message
1 .Tm2
2 .Tm1
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