Patent US2847404A successfully refreshed from Google Patents.
US2847404A
Expired / Lapsed
US
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High stability latices
Assignee: Goodrich Corp
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Filing: 1955-06-30
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Granted: 1958-08-12
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Expires: 1975-06-30
Abstract
No abstract record available.
Inventors
- 👤 Hoertz Joseph Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:31
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/06; C08F236/00; C08F236/02; C08F236/04; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE METHOD FOR PREPARING STABLE, EMULSIFIER-FREE, ALKALI METAL ION-FREE LATICES OF POLYMERIZABLE MONOMERS WHICH COMPRISES POLYMERIZING IN WATER 100 PARTS OF A MONOMERIC MIXTURE COMPRISING GREATER THAN 30% CONJUGATED DIENES AND AT LEAST ONE OTHER VINYLIDENE COMPOUND CONTAINING THE H2C=C< GROUP, AT LEAST ONE OF WHICH SAID VINYLIDENE COMPOUND MONOMERS IS PRESENT IN THE MONOMERIC MIXTURE IN AN AMOUNT SO THAT AT LEAST ABOUT 0.5% OF SAID VINYLIDENE MONOMERS ARE DISSOLVED IN WATER, IN THE PRESENCE OF ABOUT 0.1 TO 3 PARTS OF AMMONIUM PERSULFATE AND ABOUT 0.1 TO 3 PARTS OF SULFUR DIOXIDE, IN THE ABSENCE OF EMULSIFIERS AND ALKALI METAL IONS AND IN THE PRESENCE OF ABOUT 1X10**-4 TO 10X10**-4 PART OF IRON IONS.
Claim 2
Independent Claim
116 words
THE METHOD FOR PREPARING STABLE, EMULSIFIER-FREE, ALKALI METAL ION-FREE LATICES OF POLYMERIZABLE MONOMERS WHICH COMPRISES POLYMERIZING IN WATER 100 PARTS OF A MONOMERIC MIXTURE COMPRISING GREATER THAN 30% CONJUGATED DIENES AND AT LEAST ONE OTHER VINYLIDENE COMPOUND CONTAINING THE H2C=C< GROUP, AT LEAST ONE OF WHICH SAID VINYLIDENE COMPOUND MONOMERS IS PRESENT IN THE MONOMERIC MIXTURE IN AN AMOUNT SO THAT AT LEAST ABOUT 0.5% OF SAID VINYLIDENE MONOMERS ARE DISSOLVED IN WATER, IN THE PRESENCE OF ABOUT 0.1 TO 3 PARTS OF AMMONIUM PERSULFATE AND ABOUT 0.1 TO 3 PARTS OF SULFUR DIOXIDE, IN THE ABSENCE OF EMULSIFIERS AND ALKALI METAL IONS AND IN THE PRESENCE OF ABOUT 1X10**-4 TO 10X10**-4 PART OF IRON IONS.
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) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |