US2016326450A1PendingUtilityA1

Metalworking oil composition

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Assignee: IDEMITSU KOSAN COPriority: Jan 20, 2014Filed: Dec 17, 2014Published: Nov 10, 2016
Est. expiryJan 20, 2034(~7.5 yrs left)· nominal 20-yr term from priority
Inventors:Tomohiko Kitamura
C10N 2030/06C10N 2040/22C10N 2040/20C10N 2030/02C10N 2020/02C10N 2030/30C10N 2020/00C10M 2219/021C10M 2219/08C10M 2203/1025C10M 2207/2835C10M 2203/1006C10M 2219/024C10M 2201/043C10M 169/04C10M 2219/046C10M 105/38C10M 125/06C10M 135/06C10N 2230/30C10N 2220/00C10N 2220/022C10N 2230/06C10N 2240/40C10N 2240/401
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Claims

Abstract

A metalworking oil composition contains: a component (A) that is an ester of a polyhydric alcohol and a fatty acid; and a component (B) that is elemental sulfur, in which the metalworking oil composition has a kinematic viscosity at 40 degrees C. in a range from 5 mm 2 /s to 70 mm 2 /s and a flash point of 200 degrees C. or more. The metalworking oil composition of the invention is suitably usable particularly in a field of a high-speed cutting work

Claims

exact text as granted — not AI-modified
1 : A metalworking oil composition, comprising:
 (A) an ester of a polyhydric alcohol and a fatty acid; and   (B) elemental sulfur,   wherein the metalworking oil composition has a kinematic viscosity at 40 degrees C. in a range from 5 mm 2 /s to 70 mm 2 /s and a flash point of 200 degrees C. or more.   
     
     
         2 : The metalworking oil composition according to  claim 1 , wherein the polyhydric alcohol is at least one of neopentylglycol, glycerin, pentaerythritol and trimethylol propane. 
     
     
         3 : The metalworking oil composition according to  claim 1 , wherein the ester (A) has a kinematic viscosity at 40 degrees C. in a range from 4 mm 2 /s to 69 mm 2 /s. 
     
     
         4 : The metalworking oil composition according to  claim 1 , wherein a content of the elemental sulfur (B) ranges from 0.05 mass % to 1 mass % based on a total amount of the composition. 
     
     
         5 : The metalworking oil composition according to  claim 1 , further comprising:
 (C) a sulfurized oil and fat.   
     
     
         6 : The metalworking oil composition according to  claim 5 , wherein a content of the sulfurized oil and fat (C) ranges from 0.5 mass % to 30 mass % based on the total amount of the composition. 
     
     
         7 : The metalworking oil composition according to  claim 5 , wherein a blending mass ratio (C)/(B) of the sulfurized oil and fat (C) to the elemental sulfur (B) ranges from 2 to 75. 
     
     
         8 : The metalworking oil composition according to  claim 5 , wherein the sulfurized oil and fat (C) has a kinematic viscosity at 40 degrees C. in a range from 100 mm 2 /s to 2000 mm 2 /s. 
     
     
         9 : The metalworking oil composition according to  claim 1 , which is adapted to function as a cutting oil composition.

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