US2906719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing chloroethylene polymers with cadmium hydroxy laurate and lead stearate
Assignee: Dow Chemical Co
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Filing: 1956-02-10
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Granted: 1959-09-29
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Expires: 1976-02-10
Abstract
No abstract record available.
Inventors
- 👤 Erwin M Jankowiak
- 👤 Alfred R Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:03
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR STABILIZING CHLOROETHYLENE POLYMERS AGAINST THE DEGRADATIVES EFFECTS OF HEAT COMPRISING THE ADDITION TO THE CHLOROETYLENIC MONOMER PRIOR TO POLYMERIZATION OF AT LEAST 0.5 PERCENT BY WEIGHT OF LEAD STEARATE AND AT LEAST 0.5 PERCENT BY WEIGHT OF CADMIUM ALPHA-HYDROXYLAURATE, THE AGGREGATE WEIGHT OF BOTH INGREIDIENTS NOT TO EXCEED 5 PERCENT BY WEIGHT OF SAID MONOMER, DISPERSING SAID MONOMER AND SAID INGREIDIENTS TOGETHER WITH A POLYMERIZATION CATALYST INTO AN AQUEOUS PHASE, SUBJECTING THE SO-FORMED DISPERSION RO POLYMERIZATION CONDITIONS, RECOVERING THE POLYMER FORMED, AND DINALLY DRYING SAID POLYMER.
Claim 2
Dependent Claim
89 words
A PROCESS FOR STABILIZING CHLOROETHYLENE POLYMERS AGAINST THE DEGRADATIVES EFFECTS OF HEAT COMPRISING THE ADDITION TO THE CHLOROETYLENIC MONOMER PRIOR TO POLYMERIZATION OF AT LEAST 0.5 PERCENT BY WEIGHT OF LEAD STEARATE AND AT LEAST 0.5 PERCENT BY WEIGHT OF CADMIUM ALPHA-HYDROXYLAURATE, THE AGGREGATE WEIGHT OF BOTH INGREIDIENTS NOT TO EXCEED 5 PERCENT BY WEIGHT OF SAID MONOMER, DISPERSING SAID MONOMER AND SAID INGREIDIENTS TOGETHER WITH A POLYMERIZATION CATALYST INTO AN AQUEOUS PHASE, SUBJECTING THE SO-FORMED DISPERSION RO POLYMERIZATION CONDITIONS, RECOVERING THE POLYMER FORMED, AND DINALLY DRYING SAID POLYMER.
References Cited (Backward Citations)
US2075543A
Cited
GB599429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |