← Back to Patent Explorer
US3846316A Expired / Lapsed US ⏱️ 0.0 years remaining

Lubricants containing reaction products of petroleum sulfonic acids and organic nitrogen polymers

Assignee: Phillips Petroleum Co
•
Filing: 1971-04-30
•
Granted: 1974-11-05
•
Expires: 1991-04-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract 1. A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL CONTAINING A SMALL BUT EFFECTIVE AMOUNT, SUFFICIENT TO IMPART INCREASED DETERGENCY TO SAID LUBRICATING OIL, OF AN ADDITIVE WHICH IS A REACTION PRODUCT FORMED BY REACTING A PETROLEUM SULFONIC ACID REACTANT AND A POLYMER REACTANT SELECTED FROM THE GROUP SISTING OF (A) A POLYMER OF AN ETHYLENICALLY SUBSTITUTED HETEROCYCLIC NITROGEN BASE, (B) A POLYMER OF A 1,2-ALKYLENE IMINE CHARACTERIZED BY THE FORMULA AZIRIDINYL-R" WHEREIN R IS HYDROGEN OR AN ALKYL RADICAL CONTANING UP TO 14 CARBON ATOMS, AND HAVING A DEGREE OF POLYMERIZATION WITHIN THE RANGE OF 5 TO 2,000, AND (C) MIXTURES OF SAID POLYMERS (A) AND (B), SAID REACTING RATIOS SUCH THAT UNDER REACTION CONDITIONS AND AT REACTANT RATIOS SUCH THAT SAID REACTION PRODUCT IS FORMED.

Inventors

  • 👤 S Schiff
  • 👤 G Kahle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 11:47
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/108; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2219/00; C10M2219/04; C10M2219/044; C10M2221/00; C10M2221/04; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 74 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL CONTAINING A SMALL BUT EFFECTIVE AMOUNT, SUFFICIENT TO IMPART INCREASED DETERGENCY TO SAID LUBRICATING OIL, OF AN ADDITIVE WHICH IS A REACTION PRODUCT FORMED BY REACTING A PETROLEUM SULFONIC ACID REACTANT AND A POLYMER REACTANT SELECTED FROM THE GROUP SISTING OF (A) A POLYMER OF AN ETHYLENICALLY SUBSTITUTED HETEROCYCLIC NITROGEN BASE, (B) A POLYMER OF A 1,2-ALKYLENE IMINE CHARACTERIZED BY THE FORMULA
Claim 2
Dependent Claim 74 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL CONTAINING A SMALL BUT EFFECTIVE AMOUNT, SUFFICIENT TO IMPART INCREASED DETERGENCY TO SAID LUBRICATING OIL, OF AN ADDITIVE WHICH IS A REACTION PRODUCT FORMED BY REACTING A PETROLEUM SULFONIC ACID REACTANT AND A POLYMER REACTANT SELECTED FROM THE GROUP SISTING OF (A) A POLYMER OF AN ETHYLENICALLY SUBSTITUTED HETEROCYCLIC NITROGEN BASE, (B) A POLYMER OF A 1,2-ALKYLENE IMINE CHARACTERIZED BY THE FORMULA

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag