Braskem America BS-140

Braskem America BS-140 is a hydrophobic thermoplastic hydrocarbon resin obtained through the catalytic polymerization of hydrocarbons in a continuous process. It is presented in the form of light yellow pellets and exhibits compatibility with a wide range of solvents and polymeric materials. When added to rubbers, Unilene enhances processability, filler incorporation, dispersion, and mass adhesion, effectively preventing elastomer degradation and reducing preparation time. In applications such as Solvent and Hot Melt adhesives, this resin facilitates good adhesion, cohesion, excellent open time, and water repellency.

For more information regarding REACH, please visit Braskem's REACH site

Chemical Family: Hydrocarbons

Compatible Polymers & Resins: Alkyds, Epoxies (EP), Ethylene Vinyl Acetate (EVA)

Glass Transition Temperature (Tg): 80.0 °C

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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Softening Point140°CASTM D 6493
Color (50% in Toluene)max. 5GardnerASTM D 6166
Acid Valuemax. 0.1mg KOH/gASTM D 974
Molecular Weight (Mn)1130g/molASTM D 6579
Molecular Weight (Mw)2700g/molASTM D 6579
Molecular Weight (Mz)5350g/molASTM D 6579
Brookfield Viscosity (at 200°C)2180cPsASTM D 3236
Cloud Point (MMAP)31°CASTM D 6038
Glass Transition Temperature80°CASTM D 6604

Regulatory & Compliance

Packaging & Availability

Packaging Type
Packaging Information

The resins are supplied in 25 ± 0.2 kg polyethylene bags and are supplied in pellet format.

Storage & Handling

Shelf Life
2 years
Recommended Storage & Handling Conditions

Hydrocarbon resins have thermoplastic characteristics, they can agglomerate when subjected to high temperatures and/or under pressure (stacking). It is recommended to store the product in a fresh place, free from direct sunlight, moisture and without stacking the pallets, also avoiding direct contact with the soil. This characteristic is considered more crucial for low softening point resins such as Unilene A‐80, A‐90, and A‐90 LN.