A grease is a stable mixture of a base oil and a thickening agent. KEMAT Polybutenes, POLYBUT and POLYBOL all have particular properties as base oils as well as modifiers to achieve the level of modern properties for Polybutene greases.
End User Applications
KEMAT Polybutenes of low viscosity can be used as the base oil for the manufacturing of a grease.
KEMAT Polybutenes of medium to high viscosity are used in conjunction with a conventional mineral oil to produce a blend oil from which a grease can be manufactured. The polybutene will adjust the viscosity and Viscosity Index (VI) of the mineral oil to modify and improve the properties of the finished grease.
Most advantages of the use of KEMAT Polybutenes can be found in the following table:
|Pour Point||Improved performance over mineral oils under low temperature conditions||Low temperature greases for automotive and industrial use|
|Toxicity||No detectable aromatic content and practically non-toxic||Incidental food contact greases|
|Colour||White or transparent when thickened with light-coloured thickening agent||Food or medical greases|
|Water resistance||Hydrophobic with good sealant properties for corrosion protection||Greases for bottling and canning lines|
|Inertness||Good chemical and physical stability; permanently non-drying||Corrosion protection; wire rope lubricants; cable greases|
|Viscosity||Wide range to modify adhesiveness and temperature response of grease||Heavy-duty gear operated over wide temperature range|
|Volatility||Depolymerizes to volatile compounds above 250°C without residue or staining||Graphite or molybdenum disulphide suspensions|
KEMAT has a wide range of molecular weight (MW) polybutenes going from POLYBUTTM (lower MW) to POLYBOLTM (medium and higher MW). All are used in the grease manufacturing.