US4409113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic hot forging lubricants and process
Assignee: Henkel AG and Co KGaA
•
Filing: 1981-11-02
•
Granted: 1983-10-11
•
Expires: 2001-11-02
Abstract
Abstract A lubricant composition for hot forging operations is disclosed which includes water and phthalates made by reacting phthalic acids with alkali metal hydroxides. Other additives may be present such as thickeners, extreme pressure (E.P.) additives, suspending agents, germicides, anti-wear agents, pigments, corrosion inhibitors, wetting agents, dyes, and perfumes. A hot forging process based on the above lubricant is also disclosed.
Inventors
- 👤 Jerome W. Bertell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:31
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M129/00; C10M129/02; C10M129/26; C10M129/48; C10M129/52; C10M2201/00; C10M2201/02; C10M2201/04; C10M2201/041; C10M2201/06; C10M2201/062; C10M2201/065; C10M2201/066; C10M2207/00; C10M2207/10; C10M2207/14; C10M2207/142; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10M2209/12; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/045; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
43 words
A hot forging lubricant comprising an aqueous composition containing from about 0.5 to 35 percent by weight of composition of a dialkali metal salt of a phthalic acid and from about 0.005 to 25.0 percent by weight of composition of a thickening agent.
Claim 2
Dependent Claim
43 words
A hot forging lubricant comprising an aqueous composition containing from about 0.5 to 35 percent by weight of composition of a dialkali metal salt of a phthalic acid and from about 0.005 to 25.0 percent by weight of composition of a thickening agent.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein the composition contains from about 5 to 35 percent by weight of said salt.
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein the alkali metal is selected from the group consisting of potassium, sodium and lithium.
Claim 5
Dependent Claim
14 words
The composition of claim 1 wherein the pH is from about 5 to 10.
Claim 6
Dependent Claim
14 words
The composition of claim 4 wherein the pH is from about 7 to 8.
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein the salt is disodium isophthalate.
Claim 8
Dependent Claim
11 words
The composition of claim 1 wherein the salt is dipotassium terephthalate.
Claim 9
Dependent Claim
24 words
The composition of claim 1 wherein the acid is selected from the group consisting of orthophthalic acid, isophthalic acid, terephthalic acid and mixtures thereof.
Claim 10
Dependent Claim
54 words
A hot forming lubricant comprising an aqueous composition containing conventional aqueous lubricant additives, the improvement comprising including in the composition from about 0.5 to 35 percent by weight of composition of a dialkali metal salt of a phthalic acid and from about 0.005 to 25.0 percent by weight of composition of a thickening agent.
Claim 11
Dependent Claim
54 words
A hot forming lubricant comprising an aqueous composition containing conventional aqueous lubricant additives, the improvement comprising including in the composition from about 0.5 to 35 percent by weight of composition of a dialkali metal salt of a phthalic acid and from about 0.005 to 25.0 percent by weight of composition of a thickening agent.
Claim 12
Dependent Claim
19 words
The composition of claim 9, including from about 0.0005 to 0.1 percent by weight of composition of a germicide.
Claim 13
Dependent Claim
18 words
The composition of claim 9 including from about 0.05 to 50 percent by weight of a lubricant enhancer.
Claim 14
Dependent Claim
19 words
The composition of claim 11 including from about 0.005 to 5.0 percent by weight of a surface active agent.
Claim 15
Dependent Claim
13 words
The composition of claim 9 wherein the thickening agent is an organic polymer.
Claim 16
Dependent Claim
14 words
The composition of claim of claim 13 wherein the thickening agent is hydroxyethyl cellulose.
Claim 17
Dependent Claim
18 words
The composition of claim 9 including from about 0.05 to 5.0 percent by weight of a corrosion inhibitor.
Claim 18
Dependent Claim
70 words
A hot forging process for metals comprising applying to hot forging dies an aqueous lubricant composition containing from about 0.1 to 35 percent by weight of composition of a dialkali metal salt of a phthalic acid and from about 0.005 to 25.0 percent by weight of composition of a thickening agent, placing the metal between the dies, closing the dies under pressure, opening the dies and removing the forged metal.
Claim 19
Dependent Claim
70 words
A hot forging process for metals comprising applying to hot forging dies an aqueous lubricant composition containing from about 0.1 to 35 percent by weight of composition of a dialkali metal salt of a phthalic acid and from about 0.005 to 25.0 percent by weight of composition of a thickening agent, placing the metal between the dies, closing the dies under pressure, opening the dies and removing the forged metal.
Claim 20
Dependent Claim
16 words
The process of claim 16 wherein the lubricant composition is applied to the die by spraying.
Claim 21
Dependent Claim
63 words
A hot forming process for metal comprising applying an aqueous lubricant composition containing from about 0.5 to 35 percent by weight of composition of a dialkali metal salt of a phthalic acid to the surface of a hot die, placing the metal in the die to form the metal into the shape of the die, and removing the shaped metal from the die.
Claim 22
Dependent Claim
63 words
A hot forming process for metal comprising applying an aqueous lubricant composition containing from about 0.5 to 35 percent by weight of composition of a dialkali metal salt of a phthalic acid to the surface of a hot die, placing the metal in the die to form the metal into the shape of the die, and removing the shaped metal from the die.
References Cited (Backward Citations)
US2735814A
Cited
GB721255A
Cited
GB856924A
Cited
US2959547A
Cited
US2921874A
Cited
US3209453A
Cited
GB995708A
Cited
US3313729A
Cited
US3375193A
Cited
US3507791A
Cited
US3806453A
Cited
US3962103A
Cited
US3983042A
Cited
US4287073A
Cited
US4088585A
Cited
US4149983A
Cited
US4289636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |