Slideway Lubricant Compositions, Methods of Making and Using Thereof

Abstract

A slideway lubricant composition is provided. The composition comprises a sufficient amount of an isomerized base oil having consecutive numbers of carbon atoms and has less than 10 wt % naphthenic carbon by n-d-M for the composition to separate from water in less than 60 minutes at 54° C. as measured according to ASTM D-1401-2002. In one embodiment, the composition contains none if little demulsifying additives. In another embodiment, the composition meets machine tool and pneumatic tool builders, including but not limited to Cincinnati Milacron Specifications of P47, P50 and P53 for Grades 68, 220 and 32.

1 . A slideway lubricant composition, comprising:
 a) a base oil comprising at least an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M,   b) 0.001 to 10 wt % at least an additive selected from an additive package, an oxidation inhibitor, a high pressure agent, a friction modifier, an adhesion additive, an anti-wear agent, a metal passivator, an anti-foam agent, a demulsifying agent, and mixtures thereof,   wherein the lubricant composition contains a sufficient amount of isomerized base oil for the composition to separate from water in less than 60 minutes at 54° C. as measured according to ASTM D-1401-2002.   
   
   
       2 . The composition of  claim 1 , wherein the demulsifying agent is present in an amount of less than 1 wt. %. 
   
   
       3 . The composition of  claim 1 , wherein the demulsifying agent is present in an amount of less than 0.5 wt. %. 
   
   
       3 . The composition of  claim 1 , wherein the composition separates from water in less than 45 minutes at 54° C. as measured according to ASTM D-1401-2002. 
   
   
       3 . The composition of  claim 2 , wherein the composition separates from water in less than 30 minutes at 54° C. as measured according to ASTM D-1401-2002. 
   
   
       5 . The composition of  claim 3 , wherein the composition separates from water in less than 15 minutes at 54° C. as measured according to ASTM D-1401-2002. 
   
   
       6 . The composition of  claim 1 , wherein the sufficient amount of isomerized base oil is 95 to 99.999 wt. %. 
   
   
       7 . The composition of  claim 1 , wherein the base oil further comprises at least one of at least one of a mineral oil, an oligomer of an alphaolefin, an ester, a synthetic hydrocarbon oil, and mixtures thereof. 
   
   
       8 . The composition of  claim 7 , wherein the base oil comprises 5 to 95 wt. % of at least one of at least one of a mineral oil, an oligomer of an alphaolefin, an ester, a synthetic hydrocarbon oil, and mixtures thereof. 
   
   
       9 . The composition of  claim 1 , wherein isomerized base oil is a Fischer-Tropsch derived base oil made from a waxy feed, having an average molecular weight between 600 and 1100, and an average degree of branching in the molecules between 6.5 and 10 alkyl branches per 100 carbon atoms. 
   
   
       10 . The composition of  claim 1 , wherein the composition meets at least one of Cincinnati Milacron Specifications of P47, P50 and P53 for Grades 68, 220 and 32. 
   
   
       11 . The composition of  claim 1 , wherein the isomerized base oil has a wt % Noack volatility between 0 and 100. 
   
   
       12 . The composition of  claim 1 , wherein the isomerized base oil has an auto-ignition temperature (AIT) greater than an amount defined by: 1.6×(Kinematic Viscosity at 40° C., in mm 2 /s)+300. 
   
   
       13 . The composition of  claim 1 , wherein the isomerized base oil has an auto-ignition temperature (AIT) greater than 329° C. and a Noack volatility less than an amount defined by: 160-40 (Kinematic Viscosity at 100° C.). 
   
   
       14 . The composition of  claim 1 , wherein the isomerized base oil has a viscosity index greater than 28×Ln (Kinematic Viscosity at 100° C., in mm 2 /s)+300. 
   
   
       15 . The composition of  claim 1 , wherein the isomerized base oil has a ratio of weight percent molecules with monocycloparaffinic functionality to weight percent molecules with multicycloparaffinic functionality of greater than 15. 
   
   
       16 . The composition of  claim 1 , wherein the isomerized base oil is made from a process in which the highly paraffinic wax is hydroisomerized using a shape selective intermediate pore size molecular sieve comprising a noble metal hydrogenation component, and under conditions of about 600° F. to 750° F. and wherein the isomerized base oil has a Noack volatility of less than 50 weight %. 
   
   
       17 . The composition of  claim 1 , wherein the isomerized base oil has a viscosity index greater than an amount defined by: 28×Ln (Kinematic viscosity at 100° C.)+95. 
   
   
       18 . The composition of  claim 1 , wherein the isomerized base oil has a Kinematic Viscosity at 100° C. of >1.808 mm 2 /s and a Noack volatility less than an amount calculated by: 1.286+20 (kv100) −1.5 +551.8 e −kv100 , where kv100 is the kinematic viscosity at 100° C. 
   
   
       19 . The composition of  claim 1 , wherein the isomerized base oil comprises greater than 3 weight % molecules with cycloparaffinic functionality and less than 0.30 weight percent aromatics. 
   
   
       20 . The composition of  claim 1 , wherein the isomerized base oil comprises greater than 10 wt. % and less than 70 wt. % total molecules with cycloparaffinic functionality 
   
   
       21 . The composition of  claim 1 , wherein the isomerized base oil has a traction coefficient of less than 0.023 when measured at a kinematic viscosity of 15 mm 2 /s and at a slide to roll ratio of 40%. 
   
   
       22 . A method for demulsifying a slideway lubricant, the method comprises adding to a base oil typically used for preparing the slideway lubricant a sufficient amount of isomerized base oil for the lubricant to separate from water in less than 60 minutes at 54° C. as measured according to ASTM D-1401-2002, wherein the isomerized base oil has consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M. 
   
   
       23 . The method of claim  26 , wherein the base oil typically used for preparing the slideway lubricant is a Group I, Group II, Group III or Group IV base oil. 
   
   
       24 . A method for demulsifying a slideway lubricant, the method comprises preparing a base oil comprising a sufficient amount of isomerized base oil for the lubricant to separate from water in less than 60 minutes at 54° C. as measured according to ASTM D-1401-2002, wherein the isomerized base oil has consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M. 
   
   
       25 . The method of claim  26 , wherein the method further comprising the step of blending into the base oil 0.001 to 10 wt % at least an additive selected from an additive package, an oxidation inhibitor, a high pressure agent, a friction modifier, an adhesion additive, an anti-wear agent, a metal passivator, an anti-foam agent, a demulsifying agent, and mixtures thereof.