US4116872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt metal working lubricants
Assignee: Lubrizol Corp
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Filing: 1977-02-08
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Granted: 1978-09-26
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Expires: 1997-02-08
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 anti-oxidants. The composition may be applied in liquid form and solidifies on cooling to normal ambient and storage temperatures.
Inventors
- 👤 Richard William Jahnke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:08
CPC Classifications
C; C10; C10M; C10M7/00; 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; C10M2205/18; 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
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
107 words
A method for lubricating metal during working thereof which comprises applying to said metal a lubricating composition which provides lubricity thereto, said composition melting within the range of about 30°-100° C. and 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
Independent Claim
107 words
A method for lubricating metal during working thereof which comprises applying to said metal a lubricating composition which provides lubricity thereto, said composition melting within the range of about 30°-100° C. and 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 method according to claim 1 wherein the lubricating composition melts within the range of about 35°-70° C.
Claim 4
Dependent Claim
20 words
A method 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 method 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
50 words
A method according to claim 4 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 7
Dependent Claim
11 words
A method according to claim 5 wherein C is stearic acid.
Claim 8
Dependent Claim
11 words
A method according to claim 6 wherein the working comprises drawing.
Claim 9
Dependent Claim
30 words
A method 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 10
Dependent Claim
38 words
A method according to claim 8 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 11
Dependent Claim
50 words
A method according to claim 9 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 12
Dependent Claim
11 words
A method according to claim 10 wherein C is stearic acid.
Claim 13
Dependent Claim
11 words
A method according to claim 11 wherein the working comprises drawing.
Claim 14
Dependent Claim
77 words
A method according to claim 2 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 15
Dependent Claim
43 words
A method according to claim 13 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.
Claim 16
Dependent Claim
11 words
A method according to claim 14 wherein the working comprises drawing.
Claim 17
Dependent Claim
87 words
A composition which melts within the range of about 30°-100° C. and which provides lubricity to metal surfaces, said composition comprising a mixture of substantially neutral esters defined as follows: I. the alcohol moieties are derived from (A) a polyalkylene glycol containing about 20-50 polyoxyalkylene units and (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 and (D) at least one C 4-20 aliphatic polycarboxylic acid.
Claim 18
Dependent Claim
87 words
A composition which melts within the range of about 30°-100° C. and which provides lubricity to metal surfaces, said composition comprising a mixture of substantially neutral esters defined as follows: I. the alcohol moieties are derived from (A) a polyalkylene glycol containing about 20-50 polyoxyalkylene units and (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 and (D) at least one C 4-20 aliphatic polycarboxylic acid.
Claim 19
Dependent Claim
15 words
A composition according to claim 16 which melts within the range of about 35°-70° C.
Claim 20
Dependent Claim
45 words
A composition according to claim 17 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 21
Dependent Claim
50 words
A composition according to claim 18 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 22
Dependent Claim
11 words
A composition according to claim 19 wherein C is stearic acid.
Claim 23
Dependent Claim
30 words
A composition according to claim 17 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 24
Dependent Claim
38 words
A composition according to claim 21 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 25
Dependent Claim
50 words
A composition according to claim 22 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 26
Dependent Claim
11 words
A composition according to claim 23 wherein C is stearic acid.
Claim 27
Dependent Claim
77 words
A composition according to claim 16 which additionally contains at least one phosphorus acid salt having the formula ##STR3## 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 28
Dependent Claim
43 words
A composition according to claim 25 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.
Claim 29
Dependent Claim
11 words
A composition according to claim 16 which additionally contains an antioxidant.
Claim 30
Dependent Claim
11 words
A composition according to claim 18 which additionally contains an antioxidant.
Claim 31
Dependent Claim
11 words
A composition according to claim 20 which additionally contains an antioxidant.
Claim 32
Dependent Claim
11 words
A composition according to claim 21 which additionally contains an antioxidant.
Claim 33
Dependent Claim
11 words
A composition according to claim 23 which additionally contains an antioxidant.
Claim 34
Dependent Claim
11 words
A composition according to claim 24 which additionally contains an antioxidant.
Claim 35
Dependent Claim
11 words
A composition according to claim 26 which additionally contains an antioxidant.
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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) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |