Patent US3899364A successfully refreshed from Google Patents.
US3899364A
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Method of pretreating metal surfaces
Assignee: Greif International Holding BV
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Filing: 1972-10-24
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Granted: 1975-08-12
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Expires: 1992-10-24
Abstract
Abstract A steel surface pre-treated with an oily material and a phosphating agent in which the surface is (a) first coated with up to 50 milligrams phosphating agent per square meter of surface, and then the oily material is coated on the surface; or (b) the phosphating agent and oily material are simultaneously coated on the surface to provide up to 50 milligrams of phosphating agent per square meter of surface and at least 150 milligrams of oily material per meter of surface; or (c) the phosphating agent and oily material are simultaneously coated on the surface to provide up to 150 milligrams of oily material per square meter of surface.
Inventors
- 👤 Albert Edward John Evans
- 👤 Anthony Norbert Aincough
- 👤 Koen Verschoore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:13
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C10M2201/00; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/083; C10M2201/084; C10M2201/085; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/20; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31678; Y10T428/31714; Y10T428/31844
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
88 words
A STEEL SURFACE PER-TREATED TO PROVIDE SUPERIOR RUST PROTECTION, HIGH LUBRICITY AND DIRECT PAINTABILITY WITHOUT DEGREASING, SAID SURFACE HAVING A FIRST UNIFORM COATING OF UP TO 50 MILLIGRAMS OF PHOSPHATING AGENT PER SQUARE METER OF SURFACE AND A SECOND UNIFORM COATING OF AN OILY MATERIAL SELECTED FROM THE GROUP CONSISTING OF MINERAL OILS, VEGETABLE OILS, ANIMAL OILS AND EQUIVALENT SYNTHETIC OILS, SAID PHOSPHATING AGENT BEING COATED ON SAID SURFACE FROM AN ACIDIC AQUEOUS SOLUTION OF SAID PHOSPHATING AGENT SAID SECOND COATING BEING APPLIED SUBSEQUENT TO SAID FIRST COATING.
Claim 2
Dependent Claim
88 words
A STEEL SURFACE PER-TREATED TO PROVIDE SUPERIOR RUST PROTECTION, HIGH LUBRICITY AND DIRECT PAINTABILITY WITHOUT DEGREASING, SAID SURFACE HAVING A FIRST UNIFORM COATING OF UP TO 50 MILLIGRAMS OF PHOSPHATING AGENT PER SQUARE METER OF SURFACE AND A SECOND UNIFORM COATING OF AN OILY MATERIAL SELECTED FROM THE GROUP CONSISTING OF MINERAL OILS, VEGETABLE OILS, ANIMAL OILS AND EQUIVALENT SYNTHETIC OILS, SAID PHOSPHATING AGENT BEING COATED ON SAID SURFACE FROM AN ACIDIC AQUEOUS SOLUTION OF SAID PHOSPHATING AGENT SAID SECOND COATING BEING APPLIED SUBSEQUENT TO SAID FIRST COATING.
Claim 3
Dependent Claim
29 words
The steel surface of claim 1 in which said acidic aqueous solution of said phosphating agent is an acidic aqueous solution of a phosphorus oxy acid or its salt.
Claim 4
Dependent Claim
15 words
The steel surface of claim 2 in which said phosphorus oxy acid is orthophosphoric acid.
Claim 5
Dependent Claim
13 words
The steel surface of claim 1 in which said oily material is dioctylsebacate.
Claim 6
Dependent Claim
23 words
The steel surface of claim 1 in which an accelerator is used to accelerate the coating of said phosphating agent on said surface.
Claim 7
Dependent Claim
16 words
The steel surface of claim 4 in which said accelerator is sodium nitrite or sodium nitrate.
Claim 8
Dependent Claim
28 words
The steel surface of claim 1 in which said aCidic aqueous solution of said phosphating agent contains about 0.01 to 1.0 percent by volume of said phosphating agent.
Claim 9
Dependent Claim
27 words
The method of claim 1 in which said surface is uniformly coated with about 5 to 100 milligrams of said oily material per square meter of surface.
Claim 10
Dependent Claim
26 words
The method of claim 1 in which said surface is uniformly coated with 0.01 to 50 milligrams of said phosphating agent per square meter of surface.
Claim 11
Dependent Claim
98 words
A STEEL SURFACE PE-TREATED TO PROVIDE SUPERIOR RUST PROTECTION, HIGH LUBRICITY AND DIRECT PAINTABILITY WITHOUT DEGREASING, SAID SURFACE HAVING A UNIFORM COATING OF UP TO 50 MILLIGRAMS OF PHOSPHATING AGENT PER SQUARE METER OF SURFACE AND AT LEAST 150 MILLIGRAMS OF OILY MATERIAL PER SQUARE METER OF SURFACE, SAID PHOSPHATING AGENT AND SAID OILY MATERIAL BEING COATED ON SAID SURFACE SIMULTANEOUSLY, SAID PHOSPHATING AGENT BEING COATED ON SAID SURFACE FROM AN ACIDIC AQUEOUS SOLUTION OF SAID PHOSPHATING AGENT, SAID OILY MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF MINERAL OILS, VEGETABLE OILS, ANIMAL OILS AND EQUIVALENT SYNTHETIC OILS.
Claim 12
Dependent Claim
98 words
A STEEL SURFACE PE-TREATED TO PROVIDE SUPERIOR RUST PROTECTION, HIGH LUBRICITY AND DIRECT PAINTABILITY WITHOUT DEGREASING, SAID SURFACE HAVING A UNIFORM COATING OF UP TO 50 MILLIGRAMS OF PHOSPHATING AGENT PER SQUARE METER OF SURFACE AND AT LEAST 150 MILLIGRAMS OF OILY MATERIAL PER SQUARE METER OF SURFACE, SAID PHOSPHATING AGENT AND SAID OILY MATERIAL BEING COATED ON SAID SURFACE SIMULTANEOUSLY, SAID PHOSPHATING AGENT BEING COATED ON SAID SURFACE FROM AN ACIDIC AQUEOUS SOLUTION OF SAID PHOSPHATING AGENT, SAID OILY MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF MINERAL OILS, VEGETABLE OILS, ANIMAL OILS AND EQUIVALENT SYNTHETIC OILS.
Claim 13
Dependent Claim
29 words
The steel surface of claim 10 in which said acidic aqueous solution of said phosphating agent is an acidic aqueous solution of a phosphorus oxy acid or its salt.
Claim 14
Dependent Claim
15 words
The steel surface of claim 11 in which said phosphorus oxy acid is orthophosphoric acid.
Claim 15
Dependent Claim
13 words
The steel surface of claim 10 in which said oily material is dioctylsebacate.
Claim 16
Dependent Claim
23 words
The steel surface of claim 10 in which an accelerator is used to accelerate the coating of said phosphating agent on said surface.
Claim 17
Dependent Claim
16 words
The steel surface of claim 14 in which said accelerator is sodium nitrite or sodium nitrate.
Claim 18
Dependent Claim
28 words
The steel surface of claim 10 in which said acidic aqueous solution of said phosphating agent contains about 0.01 to 1.0 percent by volume of said phosphating agent.
Claim 19
Dependent Claim
24 words
The steel surface of claim 10 in which said oily material and said phosphating agent are located on said surface from an aqueous emulsion.
Claim 20
Dependent Claim
27 words
The steel surface of claim 10 in which said surface is uniformly coated with 0.01 to 50 milligrams of said phosphating agent per square meter of surface.
Claim 21
Dependent Claim
87 words
A STEEL SURFACE PER-TREATED TO PROVIDE SUPERIOR RUST PROTECTION, HIGH LUBRICITY AND DIRECT PAINTABILITY WITHOUT DEGREASING, SAID SURFACE BEING COATED WITH A PHOSPHATING AGENT AND UP TO 150 MILLIGRAMS OF OILY MATERIAL PER SQUARE METER OF SURFACE, SAID PHOSPHATING AGENT AND SAID OILY MATERIAL BEING COATED ON SAID SURFACE SIMULTANEOUSLY, SAID PHOSPHATING AGENT BEING COATED ON SAID SURFACE FROM AN ACIDIC AQUEOUS SOLUTION OF SAID PHOSPHATING AGENT, SAID OILY MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF MINERAL OILS, VEGETABLE OILS, ANIMAL OILS AND EQUIVALENT SYNTHETIC OILS.
Claim 22
Dependent Claim
87 words
A STEEL SURFACE PER-TREATED TO PROVIDE SUPERIOR RUST PROTECTION, HIGH LUBRICITY AND DIRECT PAINTABILITY WITHOUT DEGREASING, SAID SURFACE BEING COATED WITH A PHOSPHATING AGENT AND UP TO 150 MILLIGRAMS OF OILY MATERIAL PER SQUARE METER OF SURFACE, SAID PHOSPHATING AGENT AND SAID OILY MATERIAL BEING COATED ON SAID SURFACE SIMULTANEOUSLY, SAID PHOSPHATING AGENT BEING COATED ON SAID SURFACE FROM AN ACIDIC AQUEOUS SOLUTION OF SAID PHOSPHATING AGENT, SAID OILY MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF MINERAL OILS, VEGETABLE OILS, ANIMAL OILS AND EQUIVALENT SYNTHETIC OILS.
Claim 23
Dependent Claim
29 words
The steel surface of claim 19 in which said acidic aqueous solution of said phosphating agent is an acidic aqueous solution of a phosphorus oxy acid or its salt.
Claim 24
Dependent Claim
15 words
The steel surface of claim 20 in which said phosphorus oxy acid is orthophosphoric acid.
Claim 25
Dependent Claim
13 words
The steel surface of claim 19 in which said oily material is dioctylsebacate.
Claim 26
Dependent Claim
23 words
The steel surface of claim 19 in which an accelerator is used to accelerate the coating of said phosphating agent on said surface.
Claim 27
Dependent Claim
16 words
The steel surface of claim 23 in which said accelerator is sodium nitrite or sodium nitrate.
Claim 28
Dependent Claim
28 words
The steel surface of claim 19 in which said acidic aqueous solution of said phosphating agent contains about 0.01 to 1.0 percent by volume of said phosphating agent.
Claim 29
Dependent Claim
28 words
The steel surface of claim 19 in which said surface is uniformly coated with about 5 to 100 milligrams of said oily material per square meter of surface.
Claim 30
Dependent Claim
24 words
The steel surface of claim 19 in which said phosphating agent and said oily material are coated on said surface from an aqueous emulsion.
References Cited (Backward Citations)
US3525651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |