Koattro PB M 8911M



Polybutene-1 grade Koattro PB M 8911M is a random copolymer of butene-1 with high ethylene content.

Koattro PB M 8911M is primarily used as a blend component in woodworking and assembly hot melt adhesive
formulations. It can be used in combination with a wide variety of non-polar resins and waxes and maintains
good cohesive strength of the HMA and higher Shear Adhesion Failure Temperature (SAFT).

Koattro PB M 8911M is also used to improve rheological properties in blends. It is highly compatible with
polypropylene due to its similar structure. Koattro PB M 8911M is less compatible but still easily dispersible in
blends with polyethylene. Its relatively slow kinetics of crystallization allow for an excellent wetting behavior. Its
high shear-sensitive flow behavior means that it remains easily dispersible also in even more incompatible
polymers like thermoplastic elastomers.

Koattro PB M 8911M can also be used in Melt Blown and Spunbond applications offering reduced bonding temperature and improved softness.


Africa-Middle East, Asia-Pacific, Australia and New Zealand, Europe, North America, South & Central America


SDS - Safety Data Sheet
PSB - Product Stewardship Bulletin

Product Data and Technical Information

Typical Properties

Melt Flow Rate (190 °C/2.16 kg) 200 g/10 min
Density 0.895 g/cm³
Brookfield Viscosity (190 °C) 46600 mPa∙s
Tensile Modulus (23 °C) 100 MPa
Melting Temperature Tm1 93 °C
Melting Temperature Tm2 82 °C

Technical Data Sheet

Technical Data Sheet


Continuous Filament/Spinning, Fibers, Spunbond, Staple Fiber




Hot Melt Adhesives, Hygiene Nonwoven, Polymer Modifier