US2002002118A1PendingUtilityA1

Lubrication additive

31
Priority: May 19, 2000Filed: May 18, 2001Published: Jan 3, 2002
Est. expiryMay 19, 2020(expired)· nominal 20-yr term from priority
Inventors:M. Karl Brandt
C10M 2207/04C10N 2040/251C10M 2207/046C10N 2040/25C10N 2040/28C10N 2040/255C10M 2211/022C10N 2010/04C10M 2211/06C10M 129/16C10M 141/10C10M 131/04C10M 137/10C10M 2223/045
31
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Claims

Abstract

An additive for lubricating oil, especially motor oil for internal combustion engines, uses a mixture of overbased zinc alhyl-dithiophosphate, a chlorinated paraffin and a glycol ether. The additive preferable is used in a mineral oil base for reduced wear and lower oil operating temperatures.

Claims

exact text as granted — not AI-modified
I claim:  
     
         1 . A lubricating oil composition comprising: 
 a) a base oil of lubricating viscosity; and    b) an additive comprising a zinc alkyldithiophosphate, a chlorinated paraffin and a glycol ether.    
     
     
         2 . An additive for a lubricating oil comprising a 1:5:10 mixture of a zinc alkyldithiophosphate, a glycol ether and a chlorinated paraffin.  
     
     
         3 . An additive according to  claim 2  further comprising 15-30% mineral oil.  
     
     
         4 . A lubricating oil composition according to  claim 1  further comprising a viscosity index improver.  
     
     
         5 . A lubricating oil according to  claim 1 , wherein said mixture of zinc alkyldithiophosphate, glycol ether and chlorinated paraffin is present in an amount between 3 and 8% by weight.

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