Gear lubricating oil additive composition

Gear lubricating oil additive composition

  • CN 101,298,576 B
  • Filed: 04/30/2007
  • Issued: 05/09/2012
  • Est. Priority Date: 04/30/2007
  • Status: Active Grant
First Claim
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1. additive composition for gear lubricating oil is characterized in that compsn is composed of the following components:

  • (A) the medium viscosity index of deep refining or high viscosity index (HVI) MO, compsn contain component (A) 1~

    20wt%,(B) at least a sulfur-bearing extreme-pressure additive is olefine sulfide or alkyl polysulfide, and compsn contains component(B)76~

    95wt%



    (C) at least a phosphorous wear preventive additive is any mixture of thiophosphite amine salt and acid phosphorous acid ester nitrogenous compound condenses, and compsn contains component (C) 1~

    15wt%,(D) at least a rust-inhibiting additive is the alkenyl succinic acid ester, and compsn contains component (D) 1~

    10wt%,(E) at least a friction improver is the Fatty Alcohol(C12-C14 and C12-C18) of long-chain, and compsn contains component (E) 0.1~

    5.0wt%,(F) at least a metal passivator is thiadiazoles derivative, and compsn contains component (F) 0.1~

    5.0wt%.

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