US2662867A
Expired / Lapsed
US
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Method of stabilizing aqueous dispersions of haloethylene polymers
Assignee: Goodrich Corp
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Filing: 1951-03-29
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Granted: 1953-12-15
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Expires: 1971-03-29
Abstract
No abstract record available.
Inventors
- 👤 Hoertz Joseph Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:01
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F2/00; C08F2/38; C08F2/42; C08F6/00; C08K; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD OF STABLIZING AN AQUEOUS DISPERSION OF A HALOETHYLENE POLYMER WHICH COMPRISES ADDING TO SAID DISPERSION A POLYMERIZATION TERMINATOR SELECTED FROM THE CLASS CONSISTING OF PHENOLS, QUINONES AND NITRO-AROMATIC COMPOUNDS, REMOVING SUBSTANTIALLY ALL OF THE RESIDUAL MONOMERIC MATERIAL, AND MAINTAINING THE PH OF THE DISPERSION IN THE RANGE OF 2.0 TO 7.0
Claim 2
Independent Claim
53 words
THE METHOD OF STABLIZING AN AQUEOUS DISPERSION OF A HALOETHYLENE POLYMER WHICH COMPRISES ADDING TO SAID DISPERSION A POLYMERIZATION TERMINATOR SELECTED FROM THE CLASS CONSISTING OF PHENOLS, QUINONES AND NITRO-AROMATIC COMPOUNDS, REMOVING SUBSTANTIALLY ALL OF THE RESIDUAL MONOMERIC MATERIAL, AND MAINTAINING THE PH OF THE DISPERSION IN THE RANGE OF 2.0 TO 7.0
References Cited (Backward Citations)
GB605517A
Cited
US2519135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |