US4191801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt metal working lubricants
Assignee: Lubrizol Corp
•
Filing: 1978-02-27
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Granted: 1980-03-04
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Expires: 1998-02-27
Abstract
Abstract Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto and which melts within the range of about 30°-100° C. The composition comprises at least one neutral ester, and preferably a mixture of esters, prepared from polyalkylene glycols and saturated aliphatic alcohols having at least about 10 carbon atoms, and C 12-25 aliphatic monocarboxylic acids and C 4-20 aliphatic polycarboxylic acids. The preferred ester mixtures are prepared from polyethylene glycols, C 14-20 predominantly straight chain alkanols, stearic acid and adipic, azelaic or sebacic acid. Optional ingredients include phosphorus acid salts and antioxidants. The composition may be applied in liquid form and solidifies on cooling to normal ambient and storage temperatures.
Inventors
- 👤 Richard W. Jahnke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:06
CPC Classifications
C; C10; C10M; C10M105/00; C10M105/08; C10M105/32; C10M105/36; C10M107/00; C10M107/20; C10M107/30; C10M107/32; C10M107/34; C10M111/00; C10M111/04; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M169/00; C10M169/04; C10M2201/00; C10M2201/04; C10M2201/05; C10M2201/06; C10M2201/062; C10M2201/065; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2201/18; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/2805; C10M2207/281; C10M2207/282; C10M2207/2825; C10M2207/283; C10M2207/285; C10M2207/2855; C10M2207/286; C10M2207/30; C10M2207/34; C10M2207/345; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/1033; C10M2209/104; C10M2209/1045; C10M2209/105; C10M2209/1055; C10M2209/106; C10M2209/1065; C10M2209/107; C10M2209/1075; C10M2209/108; C10M2209/1085; C10M2209/109; C10M2209/1095; C10M2209/11; C10M2211/00; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/24; C10M2215/26; C10M2215/28; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/061; C10M2223/065; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/04; C10N2060/00; C10N2060/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31714; Y10T428/31801; Y10T428/31844
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A metal workpiece having on the surface thereof a film of a lubricating composition which provides lubricity thereto and which melts within the range of about 30°-100° C., said composition comprising at least one substantially neutral ester defined as follows: I. The alcohol moieties are derived from (A) a polyalkylene glycol containing about 20-50 polyoxyalkylene units, or a mixture thereof with (B) at least one saturated aliphatic alcohol having at least about 10 carbon atoms; II. The acid moieties are derived from (C) at least one C 12-25 aliphatic monocarboxylic acid, or a mixture thereof with (D) at least one C 4-20 aliphatic polycarboxylic acid.
Claim 2
Dependent Claim
105 words
A metal workpiece having on the surface thereof a film of a lubricating composition which provides lubricity thereto and which melts within the range of about 30°-100° C., said composition comprising at least one substantially neutral ester defined as follows: I. The alcohol moieties are derived from (A) a polyalkylene glycol containing about 20-50 polyoxyalkylene units, or a mixture thereof with (B) at least one saturated aliphatic alcohol having at least about 10 carbon atoms; II. The acid moieties are derived from (C) at least one C 12-25 aliphatic monocarboxylic acid, or a mixture thereof with (D) at least one C 4-20 aliphatic polycarboxylic acid.
Claim 3
Dependent Claim
18 words
A workpiece according to claim 1 wherein the lubricating composition melts within the range of about 35°-70° C.
Claim 4
Dependent Claim
20 words
A workpiece according to claim 2 wherein the ester is at least one ester of alcohol A and acid C.
Claim 5
Dependent Claim
45 words
A workpiece according to claim 2 wherein the ester is a mixture of at least one ester of alcohol A and acid C and at least one ester of alcohol B and acid D, the latter ester comprising about 5-95% by weight of said mixture.
Claim 6
Dependent Claim
30 words
A workpiece according to claim 2 wherein the ester is a mixture prepared by reacting a mixture of alcohols A and B with a mixture of acids C and D.
Claim 7
Dependent Claim
38 words
A workpiece according to claim 5 wherein about 2-4 equivalents of A are present per equivalent of B in the alcohol mixture, and about 2-4 equivalents of C are present per equivalent of D in the acid mixture.
Claim 8
Dependent Claim
55 words
A workpiece according to claim 1, 2, 4, 5 or 6 wherein A is a polyethylene glycol containing an average of 22-48 oxyethylene units, B is a C 14-20 predominantly straight-chain alkanol or commercial mixture of such alkanols, C is an alkanoic acid and D is at least one of adipic, azelaic and sebacic acids.
Claim 9
Dependent Claim
11 words
A workpiece according to claim 7 wherein C is stearic acid.
Claim 10
Dependent Claim
79 words
A workpiece according to any of claims 1-6 wherein the composition additionally contains a phosphorus acid salt having the formula ##STR2## wherein M is a Group I metal, a Group II metal, aluminum, tin, cobalt, lead, molybdenum, manganese, nickel or ammonium; each of R 1 and R 2 is a hydrocarbon-based radical; each of X 1 , X 2 , X 3 and X 4 is oxygen or sulfur; and each of a and b is 0 or 1.
Claim 11
Dependent Claim
43 words
A workpiece according to claim 9 wherein M is zinc; each of R 1 and R 2 is a lower alkyl radical; X 1 and X 2 are oxygen; X 3 and X 4 are sulfur; and a and b are each 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |