US4410434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal salts of phosphosulfurized polyhydroxyesters and lubricants containing same
Assignee: Mobil Oil AS
•
Filing: 1981-06-17
•
Granted: 1983-10-18
•
Expires: 2001-06-17
Abstract
Abstract The invention herein is concerned with novel compositions of matter made by reacting phosphorus pentasulfide with a polyhydroxyester and then followed by reaction with a salt-forming metal-containing compound and lubricant compositions containing same.
Inventors
- 👤 Harry J. Andress, Jr.
- 👤 Andrew G. Horodysky
- 👤 Joan M. Kaminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:51
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C07; C07C; C07C327/00; C07F; C07F9/00; C07F9/02; C07F9/04; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657109; C07F9/657118; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/12; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/12; C10N2010/14; C10N2010/16
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
152 words
A compound prepared by (1) reacting at a temperature of from about 60° C. to 140° C., about 1 mole of a phosphorus polysulfide with from about 2 to about 12 moles of an ester or mixtures of esters of the formula ##STR6## where R" is hydrocarbyl containing 2 to 30 carbon atoms, R' is hydrogen or a lower alkyl containing 1 to 6 carbon atoms, M is oxygen or sulfur, x is 1 to 5, y is 1 to 3 and Y' is hydrogen or (CHR'SCOR") y and (2) reacting the product of (1) at a temperature of from about 50° C. to about 125° C. with from about a stoichiometric amount to a 100% excess of a salt-forming metal-containing compound wherein the metal in said metal-containing compound is selected from the group consisting of manganese, metals from Groups IIA, IIB, VIB or VIII of the Periodic Chart and mixtures thereof.
Claim 2
Dependent Claim
152 words
A compound prepared by (1) reacting at a temperature of from about 60° C. to 140° C., about 1 mole of a phosphorus polysulfide with from about 2 to about 12 moles of an ester or mixtures of esters of the formula ##STR6## where R" is hydrocarbyl containing 2 to 30 carbon atoms, R' is hydrogen or a lower alkyl containing 1 to 6 carbon atoms, M is oxygen or sulfur, x is 1 to 5, y is 1 to 3 and Y' is hydrogen or (CHR'SCOR") y and (2) reacting the product of (1) at a temperature of from about 50° C. to about 125° C. with from about a stoichiometric amount to a 100% excess of a salt-forming metal-containing compound wherein the metal in said metal-containing compound is selected from the group consisting of manganese, metals from Groups IIA, IIB, VIB or VIII of the Periodic Chart and mixtures thereof.
Claim 3
Dependent Claim
10 words
The compound of claim 1 wherein the polysulfide is pentasulfide.
Claim 4
Dependent Claim
10 words
The compound of claim 1 wherein said metal is zinc.
Claim 5
Dependent Claim
10 words
The compound of claim 1 wherein said metal is molybdenum.
Claim 6
Dependent Claim
32 words
The comound of claim 1 wherein the ester has the formula ##STR7## wherein M is sulfur, R" is a hydrocarbyl containing 2 to 30 carbon atoms and n is 1 to 2.
Claim 7
Dependent Claim
19 words
The compound of claim 1 wherein the ester is ##STR8## the polysulfide is pentasulfide and the metal is zinc.
Claim 8
Dependent Claim
19 words
The compound of claim 1 wherein the ester is ##STR9## the polysulfide is pentasulfide and the metal is molybdenum.
Claim 9
Dependent Claim
174 words
A composition comprising a major proportion of an oil of lubricating viscosity or grease prepared therefrom and a minor friction reducing amount of a compound prepared by (1) reacting at a temperature of from about 60° C. to about 140° C., one mole of a phosphorus polysulfide with from about 2 to about 12 moles of an ester or mixtures of esters of the formula ##STR10## where R" is hydrocarbyl containing 2 to 30 carbon atoms, R' is hydrogen or a lower alkyl containing 1 to 6 carbon atoms, M is oxygen or sulfur, x is 1 to 5, y is 1 to 3 and Y' is hydrogen or (CHR'SCOR") y and (2) reacting the product of (1) at a temperature of from about 50° C. to about 125° C. with from about stoichiometric amounts to a 100% excess of a salt-forming metal-containing compound wherein the metal in said metal-containing compound is selected from the group consisting of manganese, metals from Groups IIA, IIB, VIB or VIII of the Periodic Chart and mixtures thereof.
Claim 10
Dependent Claim
174 words
A composition comprising a major proportion of an oil of lubricating viscosity or grease prepared therefrom and a minor friction reducing amount of a compound prepared by (1) reacting at a temperature of from about 60° C. to about 140° C., one mole of a phosphorus polysulfide with from about 2 to about 12 moles of an ester or mixtures of esters of the formula ##STR10## where R" is hydrocarbyl containing 2 to 30 carbon atoms, R' is hydrogen or a lower alkyl containing 1 to 6 carbon atoms, M is oxygen or sulfur, x is 1 to 5, y is 1 to 3 and Y' is hydrogen or (CHR'SCOR") y and (2) reacting the product of (1) at a temperature of from about 50° C. to about 125° C. with from about stoichiometric amounts to a 100% excess of a salt-forming metal-containing compound wherein the metal in said metal-containing compound is selected from the group consisting of manganese, metals from Groups IIA, IIB, VIB or VIII of the Periodic Chart and mixtures thereof.
Claim 11
Dependent Claim
12 words
The composition of claim 8 wherein the lubricant is a lubricating oil.
Claim 12
Dependent Claim
11 words
The composition of claim 8 wherein the lubricant is a grease.
Claim 13
Dependent Claim
14 words
The composition of claim 9 wherein the lubricating oil is a synthetic lubricating oil.
Claim 14
Dependent Claim
10 words
The composition of claim 8 wherein the polysulfide is pentasulfide.
Claim 15
Dependent Claim
10 words
The composition of claim 8 wherein said metal is zinc.
Claim 16
Dependent Claim
10 words
The composition of claim 8 wherein said metal is molybdenum.
Claim 17
Dependent Claim
32 words
The composition of claim 8 wherein said ester has the formula ##STR11## wherein M is sulfur, R" is a hydrocarbyl containing 2 to 30 carbon atoms and n is 1 to 2.
Claim 18
Dependent Claim
19 words
The composition of claim 8 wherein the ester is ##STR12## the polysulfide is pentasulfide and the metal is zinc.
Claim 19
Dependent Claim
89 words
The compound of claim 1 wherein said polysulfide and said ester or mixtures of esters in molar amounts of from about 2 to 4 moles of said ester or esters to one mole of said sulfide are reacted at a temperature of from about 90° C. to about 110° C., and the reaction product thereof and an excess of about 5 to about 10 wt% of the stoichiometric amount of said salt forming metal-containing compound are reacted at a temperature of from about 70° C. to about 100° C.
Claim 20
Dependent Claim
89 words
The composition of claim 8 wherein said polysulfide and said ester or mixtures of esters in molar amounts of from about 2 to 4 moles of said ester or esters to one mole of said sulfide are reacted at a temperature of from about 90° C. to about 110° C., and the reaction product thereof and an excess of about 5 to about 10 wt% of the stoichiometric amount of said salt forming metal-containing compound are reacted at a temperature of from about 70° C. to about 100° C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |