Use of a Rapeseed Oil in Biolubricants

Abstract

The present invention relates to the use of a rapeseed oil as base fluid in (bio-)lubricant. The present invention also relates to the use of alkylesters derived from rapeseed oil as base fluid in (bio-)lubricant.

1 - 22 . (canceled) 
   
   
       23 . A bio-lubricant comprising a rapeseed oil and at least one additive, wherein the saturated fatty acid content of said rapeseed oil is less than about 7% based on the total weight of fatty acids present in the rapeseed oil. 
   
   
       24 . The bio-lubricant according to  claim 23  wherein said rapeseed oil further comprises more than about 72% of oleic acid or less than about 4% of linolenic acid, based on the total weight of fatty acids present in the rapeseed oil. 
   
   
       25 . The bio-lubricant according to  claim 23  wherein said rapeseed oil further comprises more than about 75% of oleic acid or less than about 3.5% of linolenic acid, based on the total weight of fatty acids present in the rapeseed oil. 
   
   
       26 . The bio-lubricant according to  claim 23  wherein said rapeseed oil further comprises more than about 85% of oleic acid or less than about 1% of linolenic acid, based on the total weight of fatty acids present in the rapeseed oil. 
   
   
       27 . The bio-lubricant according to  claim 23 , wherein said rapeseed oil is extracted from at least one variety of rapeseed selected from the group consisting of CARACAS, CONTACT, CABRIOLET, CALIDA, SPIRAL, MSP05, MSP11, and MSP13. 
   
   
       28 . The bio-lubricant according to  claim 23  further comprising another oleaginous oil, wherein the ratio of rapeseed oil to said other oleaginous oil is such that the resulting oil comprises less than about 7% of saturated fatty acids, based on the total weight of fatty acids present in said resulting oil. 
   
   
       29 . The bio-lubricant according to  claim 23  further comprising another oleaginous oil, wherein the ratio of rapeseed oil to said other oleaginous oil is such that said resulting oil further comprises more than about 72% of oleic acid or less than about 4% of linolenic acid, based on the total weight of fatty acids present in said resulting oil. 
   
   
       30 . The bio-lubricant according to  claim 28 , wherein said other oleaginous oil is high oleic sunflower oil. 
   
   
       31 . The bio-lubricant according to  claim 29 , wherein said other oleaginous oil is high oleic sunflower oil. 
   
   
       32 . A bio-lubricant comprising a base-fluid and at least one additive, said base-fluid comprising a mono-alkyl ester composition resulting from the transesterification of rapeseed oil, said composition comprising less than about 7% of mono-alkyl esters of saturated fatty acids based on the total weight of mono-alkyl esters of fatty acids present in said composition. 
   
   
       33 . The bio-lubricant according to  claim 32  wherein said mono-alkyl ester composition further comprises more than about 72% of mono-alkyl ester of oleic acid or less than about 4% of mono-alkyl ester of linolenic acid, based on the total weight of the mono-alkyl ester of fatty acids present in said composition. 
   
   
       34 . A bio-lubricant comprising a base-fluid and at least one additive, said base-fluid comprising a mono-alkyl ester composition resulting from the transesterification of rapeseed oil and another oleaginous oil, said composition comprising less than about 7% of mono-alkyl esters of saturated fatty acids, based on the total weight of the mono-alkyl esters of fatty acids present in said composition. 
   
   
       35 . The bio-lubricant according to  claim 34  wherein said mono-alkyl esters composition further comprises more than about 72% of mono-alkyl ester of oleic acid or less than about 4% of mono-alkyl ester of linolenic acid, based on the total weight of the mono-alkyl ester of fatty acids present in said composition. 
   
   
       36 . The bio-lubricant according to  claim 34 , wherein said other oleaginous oil is high oleic sunflower oil. 
   
   
       37 . The bio-lubricant according to  claim 23 , wherein said at least one additive is selected from the group consisting of bactericides, fungicides, metal deactivators, friction reducers, viscosity modifiers, antioxidants, antiwear agents, anti-scuff agents, pourpoint depressants, rust inhibitors, dispersants, detergents, and antifoam agents. 
   
   
       38 . The bio-lubricant according to  claim 32 , wherein said at least one additive is selected from the group consisting of bactericides, fungicides, metal deactivators, friction reducers, viscosity modifiers, antioxidants, antiwear agents, anti-scuff agents, pourpoint depressants, rust inhibitors, dispersants, detergents, and antifoam agents. 
   
   
       39 . The bio-lubricant according to  claim 34 , wherein said at least one additive is selected from the group consisting of bactericides, fungicides, metal deactivators, friction reducers, viscosity modifiers, antioxidants, antiwear agents, anti-scuff agents, pourpoint depressants, rust inhibitors, dispersants, detergents, and antifoam agents. 
   
   
       40 . A process for preparing a bio-lubricant comprising the steps of extracting a rapeseed oil from rapeseed seeds, said rapeseed oil comprising a saturated fatty acid content of less than about 7% based on the total weight of fatty acids present in the rapeseed oil, and adding to the rapeseed oil at least one additive selected from the group consisting of bactericides, fungicides, metal deactivators, friction reducers, viscosity modifiers, antioxidants, antiwear agents, anti-scuff agents, pourpoint depressants, rust inhibitors, dispersants, detergents, and antifoam agents. 
   
   
       41 . The process according to  claim 40 , wherein said rapeseed oil further comprises more than about 72% of oleic acid or less than about 4% of linolenic acid, based on the total weight of fatty acids present in the rapeseed oil. 
   
   
       42 . The process according to  claim 40 , wherein said rapeseed oil is extracted from at least one variety of rapeseed selected from the group consisting of CARACAS, CONTACT, CABRIOLET, CALIDA, MSP05, MSP11 and MSP13. 
   
   
       43 . The process according to  claim 40 , further comprising the step of adding an oleaginous oil to the rapeseed oil, wherein the ratio of rapeseed oil to said oleaginous oil is such that the resulting oil comprises less than about 7% of saturated fatty acids, based on the total weight of fatty acids present in said resulting oil. 
   
   
       44 . The process according to  claim 43  wherein said oleaginous oil is high oleic sunflower oil. 
   
   
       45 . A process for preparing a bio-lubricant comprising the steps of extracting a rapeseed oil from rapeseed seeds, said rapeseed oil comprising a saturated fatty acid content of less than about 7% based on the total weight of fatty acids present in the rapeseed oil, transesterifying said rapeseed oil whereby the content of mono-alkyl esters of saturated fatty acids in said transesterified oil is less than 7% based on the total weight of mono-alkyl esters of fatty acids present in said transesterified oil, and adding to the oil at least one additive selected from the group consisting of bactericides, fongicides, metal deactivators, friction reducers, viscosity modifiers, antioxidants, antiwear agents, anti-scuff agents, pourpoint depressants, rust inhibitors, dispersants, detergents, and antifoam agents. 
   
   
       46 . The process according to  claim 45  wherein said transesterified oil further comprises more than about 72% of mono-alkyl ester of oleic acid or less than about 4% of mono-alkyl ester of linolenic acid, based on the total weight of the mono-alkyl ester of fatty acids present in said transesterified oil.