Lubricating compositions
Abstract
Abstract A LUBRICATING COMPOSITION COMPRISES A MAJOR PROPORTION OF A MINERAL OIL OF LUBRICATING VISCOSITY AND A MINOR PROPORTION OF A COMBINATION OF ADDITIVES (A) AND (B), ADDITIVE (A) BEING A NITROGEN-FREE RANDOM COPOLYMER OF AN ALKYL ACRYLATE COMPONENT AND AN ALKYL METHACRYLATE COMPONENT WHEREIN THE COPOLYMER IS COMPOSED OF UP TO 65% ALKYL ACRYLATE UNITS BASED ON THE TOTAL NUMBER OF ALKYL METHACRYLATE AND ALKYL ACRYLATE UNITS PRESENT IN THE COPOLYMER, THE ALKYL ACRYLATE COMPONENT IS METHYL ACRYLATE, ETHYL ACRYLATE OR A MIXTURE THEREOF AND THE ALKYL METHACRYLATE COMPONENT COMPRISES AT LEAST 50% ALKYL METHACRYLATE UNITS IN WHICH THE ALKYL GROUP CONTAINS FROM 1 TO 10 CARBON ATOMS, AND ADDITIVE (B) BEING AN ALKALINE EARTH METAL CONTAINING DETERGENT HAVING A TOTAL BASE NUMBER GREATER THAN 20.
Inventors
- 👤 J Elliott
- 👤 I Crail
- 👤 H Askew
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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