LyondellBasell Toppyl PB 8220M Polybutene

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LyondellBasell Toppyl PB 8220M Polybutene
Categories:	Polymer; Film; Thermoplastic; Polybutene
Material Notes:	Polybutene-1 (PB-1) grade Toppyl PB 8220M is a random copolymer of butene-1 with medium ethylene content. This grade is highly compatible with polypropylene due to its similar molecular structure, and it is used to modify the sealing behavior of PP based films: a typical example is its use to reduce the seal initiation temperature of BOPP sealing layers. The relatively slow kinetics of crystallization allow an excellent wetting behavior. Toppyl PB 8220M highly shear-sensitive flow behavior means that it remains easily dispersible also in even more incompatible polymers like thermoplastic elastomers. Toppyl PB 8220M can also be used in seal-peel application. Compared with Toppyl PB 8640M or Toppyl PB 8340M, in blown film seal-peel Toppyl PB 8220M provides better optical properties (haze and clarity) but with narrow sealing window. Applications: Bags & Pouches, Food Packaging Film, Lamination Film, Peelable Film, Secondary Packaging, Specialty Film Information provided by LyondellBasell.
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Physical Properties	Metric	English	Comments

Density	0.901 g/cc	0.0326 lb/in³	ISO 1183-1
Melt Flow	2.5 g/10 min @Load 2.16 kg, Temperature 190 °C	2.5 g/10 min @Load 4.76 lb, Temperature 374 °F	ISO 1133-1
	7.5 g/10 min @Load 2.16 kg, Temperature 230 °C	7.5 g/10 min @Load 4.76 lb, Temperature 446 °F	ISO 1133-1
	46 g/10 min @Load 10.0 kg, Temperature 190 °C	46 g/10 min @Load 22.0 lb, Temperature 374 °F	ISO 1133-1

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	32.0 MPa	4640 psi	ISO 8986-2
Elongation at Break	300 %	300 %	ISO 8986-2
Flexural Modulus	0.140 GPa	20.3 ksi	ISO 178

Thermal Properties	Metric	English	Comments
Melting Point	85.0 °C	185 °F	Tm2; ISO 11357-3
	97.0 °C	207 °F	Tm1; ISO 11357-3

Descriptive Properties
Processing Method	Blown Film, BOPP, Cast Film

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PEQT8588 / 220223

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