US2008026967A1PendingUtilityA1

Metal Working Fluid

45
Assignee: NIPPON OIL CORPPriority: Mar 31, 2004Filed: Mar 29, 2005Published: Jan 31, 2008
Est. expiryMar 31, 2024(expired)· nominal 20-yr term from priority
Inventors:Satoshi SudaHideo YokotaMasanori Ibi
C10M 2219/024C10M 105/36C10M 2207/2825C10M 2215/04C10N 2030/02C10N 2040/22C10M 2203/1006C10M 2207/126C10M 2223/041C10M 2207/401C10M 2207/021C10M 105/38C10M 2207/289C10M 101/00C10N 2030/06C10N 2030/40C10N 2030/30C10M 2203/003C10M 111/02C10M 101/04C10M 169/04C10M 2203/0206C10M 2207/2835
45
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Claims

Abstract

A first oil for metal working of the invention comprises an ester oil and a hydrocarbon oil with a kinematic viscosity of 1-20 mm 2 /s at 40° C. A second oil for metal working of the invention employs an ester oil as the base oil and has a moisture content of 200-20,000 ppm. The first and second oils for metal working have excellent properties as water-insoluble oils for non-ferrous metal working and as oils for cutting and grinding in a minimum quantity lubrication system, and can therefore achieve improved working efficiency and extended tool life.

Claims

exact text as granted — not AI-modified
1 . An oil for metal working comprising an ester oil and a hydrocarbon oil with a kinematic viscosity of 1-20 mm 2 /s at 40° C.  
   
   
       2 . The oil for metal working according to  claim 1 , wherein said hydrocarbon oil is at least one selected from among white oils and polyolefins or their hydrogenated forms.  
   
   
       3 . The oil for metal working according to  claim 1 , wherein the moisture content is 200-20,000 ppm.  
   
   
       4 . The oil for metal working according to  claim 1 , further comprising an oiliness agent and/or an extreme-pressure agent.  
   
   
       5 . The oil for metal working according to  claim 1 , being used for non-ferrous metal working.  
   
   
       6 . The oil for metal working according to  claim 1 , being used for cutting, grinding or rolling.  
   
   
       7 . The oil for metal working according to  claim 1 , being used for metal working in a minimum quantity lubrication system.  
   
   
       8 . An oil for metal working comprising an ester oil as the base oil and having a moisture content of 200-20,000 ppm.  
   
   
       9 . The oil for metal working according to  claim 8 , further comprising an oiliness agent and/or an extreme-pressure agent.  
   
   
       10 . The oil for metal working according to  claim 8 , being used for non-ferrous metal working.  
   
   
       11 . The oil for metal working according to  claim 8 , being used for cutting, grinding or rolling.  
   
   
       12 . The oil for metal working according to  claim 8 , being used for metal working in a minimum quantity lubrication system.

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