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Ashless Controlled Release Gels

a technology of controlled release gel and ash, which is applied in the preparation of gels, lubricant compositions, fuels, etc., can solve the problem of losing its performance effectiveness upon its degradation

Inactive Publication Date: 2008-01-17
THE LUBRIZOL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]The present invention provides for a controlled release process for supplying one or more desired additives to a lubricant by contracting the lubricant with a lubricant additive controlled release gel without the addition of producing ash containing components and in another embodiment with the addition of additives being substantially free of ash producing components.

Problems solved by technology

Therefore, as the oil ages, it loses its performance effectiveness upon its degradation.

Method used

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  • Ashless Controlled Release Gels
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  • Ashless Controlled Release Gels

Examples

Experimental program
Comparison scheme
Effect test

specific embodiments

[0088]The controlled release of the ashless base-containing gel formulation has been demonstrated along with corresponding improvement in acid neutralization performance efficiency.

[0089]Gel 1 is formed of the following composition:

Component% wtia) Partly esterified maleic anhydride / styrene copolymer 2.4%ib) Nonyl Diphenyl amine asheldd antioxidant10.0%ii) DA PIBSA / TEPA ashless dispersant87.6%aDerived from Maleic anhydride-styrene copolymer (0.69 RSV) / C8–10 Alcohol / C12-18 Alcohol / MeSO4H(catalyst) (2.9:0.87:1.7:0.11) eq in SUAQ Oil to 60%, Total Acid Number = 23 meq KOH / g.bDerived from alykylation of diphenylamine with nonene using AIC12 catalyst, Total Base Number = 156 meq KOH / g.cDerived from 850–1600 Mn high vinylidene polyisobutylene, maleic anhydride and tetraethylene pentamine, Total Base Number = 100

[0090]The polymer and half of the antioxidant are mixed to form Component A. The dispersant and the other half of the antioxidant are mixed to form Component B. Component B was the...

example 2

Controlled Release Base Gel 1 Release—Lab Test

[0091]The Gel 1 (about 50 g) was loaded into the bottom of a 1-L beaker and about 500 g of Valvoline 10 W-30 added. The resulting mixture was heated at about 100 C and oil samples were taken at regular intervals over 13 days and the total base number measured by ASTM Test Method D2896. The results are shown in Table 1.

TABLE 1Example 2 (100% TBN release = 14 TBN added)% TheoryTest HoursTBN addedTBNTBN added00.0% 7.40411%9.02.47.519%10.12.72437%12.65.25455%15.17.76264%16.49.08074%17.810.431294%20.513.1

[0092]These results show that controlled release of ashless base can be achieved using a gel of the composition described herein.

example 3

Gel 1 Field Test

[0093]Gel 1 (about 71 g) was loaded into a cylindrical cup, with about 2 mm holes located on the top face. The container was placed at the crown end of an oil filter of the same size and fittings as a Fram PH3387A oil filter, and installed on a 2002 Pontiac Grand Prix. The car was then driven under normal stop-and-go conditions for about 500 miles, with oil samples taken at regular intervals and the total base number analyzed by ASTM D2896 and the total acid number analyzed by ATMS method D664A. The results are shown in Table 2.

TABLE 2Example 3 (100% TBN release = 2.8 TBN added)Miles0100500% TBN Release07%21%TBN-TAN5.65.86.2TBN added00.20.6

[0094]These results show that controlled release of ashless base can be achieved in a vehicle under actual driving conditions using a gel of the composition described above.

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Abstract

The present invention relates to a control release gel for delivery of additives free of producing ash to substantially free of producing ash into a lubricant. Further, the invention provides for a method of controlled release of additive(s) into the lubricant.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a controlled release gel that release additives into a lubricant wherein there is substantially ash free to an ash free production of ash in the lubricant. Furthermore, the present invention relates to a gel that control releases additives into a lubricant without the addition of ash-containing components or substantially free of ash-containing components.BACKGROUND OF THE INVENTION[0002]Lubricant compositions, in particular, crankcase motor oils are desired to provide ashless lubricants, that is those which do not contain metals which form sulfated ash. Ashless lubricants are advantageous because they reduce combustion chamber deposits. Additionally, the use of ash free, acid neutralizing additives would eliminate the formation of sulfate ash in the oil.[0003]The conventional means of neutralizing acids that form in oil due to the combustion process is by employing basic additive components such as detergents in the lubri...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10M141/06
CPCB01J13/0065C10M161/00C10N2250/10C10N2230/52C10M2227/061C10M169/04C10M175/0091C10M2205/04C10M2207/026C10M2207/281C10M2209/084C10M2215/064C10M2215/26C10M2215/28C10M2215/285C10M2217/043C10M2219/068C10M2209/086C10N2210/06C10N2030/52C10N2050/10C10N2010/12
Inventor BURRINGTON, JAMES D.PUDELSKI, JOHN K.BARDASZ, EWA A.INEMAN, JENNIFER M.GARVIN, GARY A.VAN LIER, FRANK M.SKURSHA, DAVID B.
Owner THE LUBRIZOL CORP
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