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US3673090A Expired / Lapsed US ⏱️ 0.0 years remaining

Sulfurization of triisobutylene and products resulting therefrom

Assignee: Texaco Inc
•
Filing: 1970-06-11
•
Granted: 1972-06-27
•
Expires: 1990-06-11
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Abstract

Abstract A process for the sulfurization of triisobutylene and resulting products comprising contacting triisobutylene with sulfur under essentially atmospheric conditions at a temperature between about 360* and 500*F., utilizing a mole ratio of triisobutylene to sulfur of between about 1:4 and 1:2.5 while blowing the reaction mixture during at least a part of said contacting with an inert gas and recovering a sulfurized triisobutylene product containing as a major component a compound of the empirical formula C12H20S3 having substantially reduced corrosive activity to copper coupled with superior EP (extreme pressure) improving properties when incorporated in hydrocarbon lubricating oils such as gear oils and cutting oils.

Inventors

  • 👤 James O Waldbillig
  • 👤 Morris A Wiley
  • 👤 Marvin L Rambo
  • 👤 Alfred J Millendorf

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 02:53
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M135/04; C07; C07C; C07C325/00; C07C325/02; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/086; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2040/00; C10N2040/02; C10N2040/20; C10N2040/22

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 51 words
A composition in accordance with claim 1 wherein said recovering comprises stripping the reaction mixture at a temperature between about 150* and 450* F., under a pressure between about 10 and 500 mm Hg. with blowing of inert gas therethrough and subsequently filtering the residue to recover said product as filtrate.
Claim 2
Dependent Claim 13 words
A composition in accordance with claim 2 wherein said inert gas is nitrogen.

References Cited (Backward Citations)

US2738344A Cited
US2995569A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-06-27 1975-12-27 1976-06-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-27 1979-12-27 1980-06-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-27 1983-12-27 1984-06-27 $7700.00 Window Closed / Lapsed

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