US2021171858A1PendingUtilityA1

Grease composition

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Assignee: SHELL OIL COPriority: Jan 22, 2016Filed: Jan 20, 2017Published: Jun 10, 2021
Est. expiryJan 22, 2036(~9.5 yrs left)· nominal 20-yr term from priority
Inventors:Keiji TanakaYoshitomo Fujimaki
C10M 2219/044C10M 2207/144C10N 2040/02C10M 2207/028C10N 2020/069C10M 169/06C10M 2207/027C10M 2207/126C10M 2207/128C10M 2207/262C10M 2207/16C10N 2010/04C10N 2030/26C10N 2010/02C10N 2030/52C10N 2050/10C10M 2203/1006C10M 2215/1026C10N 2030/06C10N 2040/04
37
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Claims

Abstract

A grease composition containing a urea compound as a thickener, a base oil, an alkaline earth metal salicylate and/or an alkaline earth metal phenate as a first additive constituent, a metal soap, being a stearic acid metal salt, as a second additive constituent, and a calcium sulphonate and/or a zinc naphthenate as a third additive constituent.

Claims

exact text as granted — not AI-modified
1 . A grease composition containing, a urea compound as a thickener, a base oil, an alkaline earth metal salicylate and/or an alkaline earth metal phenate as a first additive constituent, a metal soap, being a stearic acid metal salt, as a second additive constituent, and a calcium sulphonate and/or a zinc naphthenate as a third additive constituent. 
     
     
         2 . The grease composition according to  claim 1 , containing both a calcium sulphonate and a zinc naphthenate as the aforementioned third constituent. 
     
     
         3 . The composition according to  claim 1 , further containing an alkyl organic acid and/or an alkyl organic acid ester. 
     
     
         4 . The grease composition according to  claim 1 , wherein the thickener is a diurea or a tetraurea. 
     
     
         5 . The grease composition according to  claim 1 , wherein the blended amount of the aforementioned urea compound is 0.5 to 50 parts by mass, taking the total grease composition as 100 parts by mass. 
     
     
         6 . The grease composition according to  claim 1 , wherein the blended amount of the aforementioned first constituent is 0.1 to 10 parts by mass, taking the total grease composition as 100 parts by mass. 
     
     
         7 . The grease composition according to  claim 1 , wherein the BN of the aforementioned first constituent is 5 to 600 mg KOH/g. 
     
     
         8 . The grease composition according to  claim 1 , wherein the blended amount of the aforementioned second constituent is 0.1 to 10 parts by mass, taking the total grease composition as 100 parts by mass. 
     
     
         9 . The grease composition according to  claim 1 , wherein the blended amount of the aforementioned third constituent is 0.1 to 10 parts by mass, taking the total grease composition as 100 parts by mass.

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