PIBSA
IntroductionGL 1940 is an ash less, non‑fatty, high viscosity surfactant additive.GL 1940 is a polyisobutenyl succinic anhydride (PIBSA) derived from polybutene.It is commonly used as an intermediate in the manufacture of oil soluble dispersants for lubricating oil applications and in the manufacturing of emulsifiers.
FormulationGL 1940 is recommended for use at 3 to 14% wt in base oils.Benefits - Good wettability properties
- Clean annealing characteristics
- Good emulsibility properties
- Non‑staining towards aluminum
- Lubricant additives
- Drilling fluids
Typical Properties
Physical | Specific Gravity, at 15.6°C | ASTM D4052
| 0.954 | Density, lb/gal at 60°F
| ASTM D4052
| 7.72 | Flash, COC °
| ASTM D92
| 200 | Viscosity, cSt at 100°C
| ASTM D445
| 900 | | Color, dilute | ASTM D1500 | 3.0 |
Handling Maximum temperatures of 82 °C (180 °F) for handling and 49 °C (120 °F) for long-term storage are recommended. Ordinary precautions for handling concentrated chemicals and blending additives into base oils should be observed.
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