US3417003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer deposit electrochemically
Assignee: Sprague Electric Co
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Filing: 1966-02-21
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Granted: 1968-12-17
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Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 Sidney D Ross
- 👤 Raymond C Petersen
- 👤 Finkelstein Manuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:26
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/54; C07F9/5449; C09; C09D; C09D5/00; C09D5/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
A METHOD OF ELECTROCHEMICALLY DEPOSITING ON A METAL SURFACE A POLYMER HAVING THE FORMULA: (-CHR-AR-CH2-)N WHERE N IS GREATER THAN 13; R IS HYDROGEN OR A MONOVALENT HYDROCARBON; AND AR IS A DIVALENT AROMATIC RADICAL, THE TWO VALENCES OF WHICH ARE LOCATED ON EACH TERMINAL CARBON ATOM OF A CHAIN OF 2 OR 4 OF THE RING ATOMS, SAID CHAIN HAVING ONE UNIT OF AROMATIC UNSATURATION FOR EACH TWO RING ATOMS, COMPRISING: MAKING SAID METAL THE CATHODE IN A SOLUTION OF A SOLVENT CONTAINING A MONOOR BIS-ONIUM SALT SELECTED FROM THE GROUP CONSISTING Z(-CH2-N(+)(-R1)(-R2)-R3)M M(X(-)); Z(-CH2-P(+)(-R1)(-R2)-R3)M M(X(-)) AND Z(-CH2-S(+)(-R1)-R2)M M(X(-)) WHEREIN M IS 1 OR 2; R1, R2 AND RO ARE C1-C18 HYDROCARBYL GROUPS; Z IA A SUBSTITUTED OR UNSUBSTITUTED AROMATIC RING; AND X IS THE ANION OF A STRONG INORGANIC ACID; AND WHEN M IS 1, THE METHYLENE RADICAL IS ATTACHED TO A CARBON ATOM OF SAID AROMATIC RING SO AS TO BE SEPARATED BY A CHAIN OF 2 OR 4 RING ATOMS FROM AN SUNSUBSTITUTED HYDROCARBYL GROUP ATTACHED TO ANOTHER RING CARBON ATOM; AND WHEN M IS 2, THE METHYLENE RADICALS ARE ATTACHED TO DIFFERENT CARBON ATOMS OF THE AROMATIC RINGS SO AS TO BE SEPARATED BY A CHAIN OF 2 TO 4 RING ATOMS; IMERSING AN ANODE IN SAID SOLUTION AND SUBJECTING SAID SOLUTION TO ELECTROLYSIS, WHEREBY SAID POLYMER DEPOSITS ON SAID CATHODE.
Claim 2
Independent Claim
226 words
A METHOD OF ELECTROCHEMICALLY DEPOSITING ON A METAL SURFACE A POLYMER HAVING THE FORMULA: (-CHR-AR-CH2-)N WHERE N IS GREATER THAN 13; R IS HYDROGEN OR A MONOVALENT HYDROCARBON; AND AR IS A DIVALENT AROMATIC RADICAL, THE TWO VALENCES OF WHICH ARE LOCATED ON EACH TERMINAL CARBON ATOM OF A CHAIN OF 2 OR 4 OF THE RING ATOMS, SAID CHAIN HAVING ONE UNIT OF AROMATIC UNSATURATION FOR EACH TWO RING ATOMS, COMPRISING: MAKING SAID METAL THE CATHODE IN A SOLUTION OF A SOLVENT CONTAINING A MONOOR BIS-ONIUM SALT SELECTED FROM THE GROUP CONSISTING Z(-CH2-N(+)(-R1)(-R2)-R3)M M(X(-)); Z(-CH2-P(+)(-R1)(-R2)-R3)M M(X(-)) AND Z(-CH2-S(+)(-R1)-R2)M M(X(-)) WHEREIN M IS 1 OR 2; R1, R2 AND RO ARE C1-C18 HYDROCARBYL GROUPS; Z IA A SUBSTITUTED OR UNSUBSTITUTED AROMATIC RING; AND X IS THE ANION OF A STRONG INORGANIC ACID; AND WHEN M IS 1, THE METHYLENE RADICAL IS ATTACHED TO A CARBON ATOM OF SAID AROMATIC RING SO AS TO BE SEPARATED BY A CHAIN OF 2 OR 4 RING ATOMS FROM AN SUNSUBSTITUTED HYDROCARBYL GROUP ATTACHED TO ANOTHER RING CARBON ATOM; AND WHEN M IS 2, THE METHYLENE RADICALS ARE ATTACHED TO DIFFERENT CARBON ATOMS OF THE AROMATIC RINGS SO AS TO BE SEPARATED BY A CHAIN OF 2 TO 4 RING ATOMS; IMERSING AN ANODE IN SAID SOLUTION AND SUBJECTING SAID SOLUTION TO ELECTROLYSIS, WHEREBY SAID POLYMER DEPOSITS ON SAID CATHODE.
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) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |