Viscosity Index Improvers and Thickeners for Synthetic Lubricants
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH
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This invention concerns viscosity index improvers and thickeners for synthetic lubricants, particularly for phosphoric acid esters or mixtures of phosphoric acid esters with chlorinated aromatic compounds. Linear polyesters are used in combination with other additives such as high pressure additives or corrosion inhibitors.
- Lubricants and Hydraulic Fluids