Braskem America A-90

Braskem America A-90 is a thermoplastic hydrocarbon resin C9 obtained through catalytic polymerization of hydrocarbons in a continuous process. These light yellow pellets possess hydrophobic characteristics and are compatible with various solvents and polymeric materials. In rubbers, A-90, also known as Unilene, enhances processability, filler incorporation, dispersion, and mass adhesion, preventing elastomer degradation and reducing preparation time. Additionally, in Solvent and Hot Melt adhesives, the resin promotes good adhesion, cohesion, excellent open time, and water repellency.

Functions: Binder & Resin, Processing Aid

Chemical Family: Hydrocarbons

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

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Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
Plastics & Elastomers Functions

Features & Benefits

Applications & Uses

Industries
Plastics & Elastomers End Uses

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Softening Point90°CASTM D 6493
Colormax. 7GardnerASTM D 6166
Acid Valuemax. 0.1mg KOH/gASTM D 974
Molecular Weight (Mn)575g/molASTM D 6579
Molecular Weight (Mw)1055g/molASTM D 6579
Molecular Weight (Mz)1980g/molASTM D 6579
Brookfield Viscosity (at 180°C)95cPsASTM D 3236
Cloud Point (MMAP)28°CASTM D 6038
Glass Transition Temperature45°CASTM D 6604

Regulatory & Compliance

Quality Standards

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.