US4753743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt metalworking lubricant
Assignee: ChampionX LLC
•
Filing: 1987-01-28
•
Granted: 1988-06-28
•
Expires: 2007-01-28
Abstract
Abstract Metalworking applications are provided with a lubricant comprised of at least one substantially saturated ester formed of a polyhydric alcohol and at least one carboxylic acid, from 5 to 15 weight percent of a partially-esterified vegetable oil, an air-oxidized vegetable oil, a high molecular weight alkali metal sulfonate salt, a high carbon amide, a high molecular weight ethoxylated organic alcohol, or mixtures thereof and from 0.5 to 3.0 weight percent of an ethylene homopolymer, a polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers, oxidized derivatives of ethylene polymers, or mixtures thereof. The lubricant is applied to metal in molten form.
Inventors
- 👤 John M. Sech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:38
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/08; C; C10; C10M; C10M169/00; C10M169/04; C10M169/048; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/14; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/027; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/2835; C10M2207/286; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/108; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/122; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
127 words
A lubricant for metalworking operations comprising: at least one substantially saturated ester formed of a polyhydric alcohol and at least one carboxylic acid; an effective plasticizing amount, comprising from 5 15 weight percent, of a partially-esterified vegetable oil formed with an organic diacid having a a molecular weight of from 250 to 500, an air-oxidized vegetable oil, a high molecular weight alkali metal sulfonate salt, a high carbon amide without N-substitution, a high molecular weight ethoxylated organic alcohol formed by ethoxylation of primary alcohol, or mixtures thereof; and from 0.5 to 3.0 weight percent of an ethylene homopolymer, a polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers, oxidized derivatives of ethylene polymer, or mixtures thereof, said polymers having a molecular weight in excess of 2,000.
Claim 2
Dependent Claim
127 words
A lubricant for metalworking operations comprising: at least one substantially saturated ester formed of a polyhydric alcohol and at least one carboxylic acid; an effective plasticizing amount, comprising from 5 15 weight percent, of a partially-esterified vegetable oil formed with an organic diacid having a a molecular weight of from 250 to 500, an air-oxidized vegetable oil, a high molecular weight alkali metal sulfonate salt, a high carbon amide without N-substitution, a high molecular weight ethoxylated organic alcohol formed by ethoxylation of primary alcohol, or mixtures thereof; and from 0.5 to 3.0 weight percent of an ethylene homopolymer, a polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers, oxidized derivatives of ethylene polymer, or mixtures thereof, said polymers having a molecular weight in excess of 2,000.
Claim 3
Dependent Claim
16 words
The lubricant of claim 1 further including from 0.5 to 3.0 weight percent of an antioxidant.
Claim 4
Dependent Claim
12 words
The lubricant of claim 2 wherein said antioxidant is a hindered phenol.
Claim 5
Dependent Claim
23 words
The lubricant of claim 1 wherein said substantially saturated ester is formed of aliphatic polyhydric alcohol having from 2 to 10 carbon atoms.
Claim 6
Dependent Claim
23 words
The lubricant of claim 4 wherein said substantially saturated ester is formed of aliphatic monocarboxylic acids having from 2 to 26 carbon atoms.
Claim 7
Dependent Claim
15 words
The lubricant of claim 5 wherein said aliphatic monocarboxylic acids have substantially unbranched carbon chains.
Claim 8
Dependent Claim
20 words
The lubricant of claim 6 wherein said substantially saturated ester has a melting point of from 30° to 100° C.
Claim 9
Dependent Claim
35 words
The lubricant of claim 7 wherein said substantially saturated ester is a diglyceride or triglyceride formed with carboxylic acids at least 90 percent of which have carbon chains containing from 14 to 22 carbon atoms.
Claim 10
Dependent Claim
17 words
The lubricant of claim 8 wherein said substantially saturated ester is substantially hydrogenated triglyceride derived from tallow.
Claim 11
Dependent Claim
22 words
The lubricant of claim 1 wherein said partially-esterified vegetable oil is a castor oil partial ester having an acid number of 50.
Claim 12
Dependent Claim
15 words
The lubricant of claim 1 wherein said air-oxidized vegetable oil is an air-oxidized soybean oil.
Claim 13
Dependent Claim
22 words
The lubricant of claim 1 wherein said high molecular weight alkali metal sulfonate has a molecular weight of from 400 to 1,000.
Claim 14
Dependent Claim
22 words
The lubricant of claim 1 wherein said high carbon amide has a carbon chain comprised of from 10 to 22 carbon atoms.
Claim 15
Dependent Claim
13 words
The lubricant of claim 13 wherein said high carbon amide is oleyl amide.
Claim 16
Dependent Claim
34 words
The lubricant of claim 1 wherein said high molecular weight ethoxylated organic alcohol is formed of a 10 to 20 carbon alcohol and from 2 to 8 ethylene oxide moles per mole of alcohol.
Claim 17
Dependent Claim
34 words
The lubricant of claim 15 wherein said high molecular weight ethoxylated organic alcohol is formed of a 14 to 16 carbon primary alcohol and about 4 ethylene oxide moles per mole of primary alcohol.
Claim 18
Dependent Claim
38 words
The lubricant of claim 1 wherein said ethylene homopolymer, polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers, oxidized derivatives thereof, or mixtures thereof, is a composition having a melting point of from 85° to 115° C.
Claim 19
Dependent Claim
40 words
The lubricant of claim 1 wherein said ethylene homopolymer, polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers, oxidized derivatives thereof, or mixtures thereof, is a composition having a hardness of from 9 to 22 dmm at 25° C.
Claim 20
Dependent Claim
37 words
The lubricant of claim 1 wherein said ethylene homopolymer, polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers, oxidized derivatives thereof, or mixtures thereof, is a composition having an acid number of from 70 to 140.
Claim 21
Dependent Claim
42 words
The lubricant of claim 1 wherein said polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers is a copolymer of ethylene and acrylic acid having a hardness of from 12 to 16 and an acid number of from 110 to 130.
Claim 22
Dependent Claim
43 words
The lubricant of claim 1 having from 80 to 95 weight percent of at least one substantially saturated ester formed of an aliphatic polyhydric alcohol having from 2 to 10 carbons atoms and aliphatic monocarboxylic acids having from 2 to 26 carbons atoms.
Claim 23
Dependent Claim
20 words
A method of lubricating metal comprising: applying to metal a coating of the lubricant of claim 1 in molten form.
Claim 24
Dependent Claim
24 words
The method of claim 22 wherein said lubricant is applied to said metal and then said metal is worked without removal of said lubricant.
Claim 25
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 2.
Claim 26
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 4.
Claim 27
Dependent Claim
14 words
The method of claim 25 wherein said lubricant is as defined in claim 8.
Claim 28
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 11.
Claim 29
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 12.
Claim 30
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 13.
Claim 31
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 15.
Claim 32
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 17.
Claim 33
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 18.
Claim 34
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 19.
Claim 35
Dependent Claim
14 words
The method of claim 23 wherein said lubricant is as defined in claim 20.
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) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |