Patent US2600202A successfully refreshed from Google Patents.
US2600202A
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Method for polymerizing chlorotrifluoroethylene
Assignee: General Electric Co
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Filing: 1950-06-28
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Granted: 1952-06-10
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Expires: 1970-06-28
Abstract
No abstract record available.
Inventors
- 👤 David W Caird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:03
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/18; C08F14/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE PROCESS FOR MAKING POLYMERIC CHLOROTRIFLUORETHYLENE WHICH COMPRISES (1) FORMING AN AQUEOUS SUSPENSION OF A MIXTURE OF INGREDIENTS HAVING A PH BELOW 5 AND COMPRISING (A) WATER, (B) CHLOROTRIFLUORETHYLENE, (C) BORIC ACID, (D) WATER, WATER-SOLUBLE INORGANIC PEROXIDE POLYMERIZATION CATALYST FOR (B), (E) A WATER-SOLUBLE IRON SALT, AND (F) A COMPOUND OXIDIZABLE IN THE PRESENCE OF THE POLYMERIZATION CATALYST AND THE IRON SALT, SAID OXIDIZABLE COMPOUND BEING SELECTED FROM THE CLASS CONSISTING OF OXIDIZABLE SULFUR-CONTAINING COMPOUNDS, OXIDIZABLE NITROGEN-CONTAINING COMPOUNDS, OXIDIZABLE SUGARS, AND OXIDIZABLE POLYHYDRIC PHENOLS, AND (2) AGITATING THE AFORESAID SUSPENSION, WHILE MAINTAINING SAID PH VALUE, IN THE PRESENCE OF ULTRAVIOLET LIGHT FOR A TIME SUFFICIENT TO FORM THE POLYMERIC MATERIAL.
Claim 2
Dependent Claim
110 words
THE PROCESS FOR MAKING POLYMERIC CHLOROTRIFLUORETHYLENE WHICH COMPRISES (1) FORMING AN AQUEOUS SUSPENSION OF A MIXTURE OF INGREDIENTS HAVING A PH BELOW 5 AND COMPRISING (A) WATER, (B) CHLOROTRIFLUORETHYLENE, (C) BORIC ACID, (D) WATER, WATER-SOLUBLE INORGANIC PEROXIDE POLYMERIZATION CATALYST FOR (B), (E) A WATER-SOLUBLE IRON SALT, AND (F) A COMPOUND OXIDIZABLE IN THE PRESENCE OF THE POLYMERIZATION CATALYST AND THE IRON SALT, SAID OXIDIZABLE COMPOUND BEING SELECTED FROM THE CLASS CONSISTING OF OXIDIZABLE SULFUR-CONTAINING COMPOUNDS, OXIDIZABLE NITROGEN-CONTAINING COMPOUNDS, OXIDIZABLE SUGARS, AND OXIDIZABLE POLYHYDRIC PHENOLS, AND (2) AGITATING THE AFORESAID SUSPENSION, WHILE MAINTAINING SAID PH VALUE, IN THE PRESENCE OF ULTRAVIOLET LIGHT FOR A TIME SUFFICIENT TO FORM THE POLYMERIC MATERIAL.
References Cited (Backward Citations)
US2393967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |