US3317495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion polymerization of vinyl chloride with hydrogen peroxide, an alkali metal formaldehyde sulfoxylate and a fatty acid sulfate salt
Assignee: Delaware City Plastics Corp
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Filing: 1964-01-06
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Granted: 1967-05-02
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Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 William D Jones
- 👤 Steven W Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:40
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; Y; Y10; Y10S; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS FOR PREPARING POLYMERIC MATERIALS IN AN AQUEOUS MEDIUM FROM A MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE AND MIXTURES THEREOF WITH AT LEAST ONE OTHER MONOMER POLYMERIZABLE THEREWITH, WHICH PROCESS COMPRISES CONTACTING THE SAID MONOMER WITH ABOUT 0.002 PERCENT TO 3 PERCENT, BY WEIGHT OF THE MONOMER, OF A HYDROGEN PEROXIDE CATALYST, ABOUT 0.003 PERCENT TO 3 PERCENT, BY WEIGHT OF THE MONOMER, OF AN ALKALI METAL FORMALDEHYDE SULOFXYLATE AND ABOUT 0.2 PERCENT TO 1.5 PERCENT BY WEIGHT OF THE MONOMER, OF A FATTY ACID SULFATE SALT OF THE FORMULA
Claim 2
Dependent Claim
94 words
A PROCESS FOR PREPARING POLYMERIC MATERIALS IN AN AQUEOUS MEDIUM FROM A MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE AND MIXTURES THEREOF WITH AT LEAST ONE OTHER MONOMER POLYMERIZABLE THEREWITH, WHICH PROCESS COMPRISES CONTACTING THE SAID MONOMER WITH ABOUT 0.002 PERCENT TO 3 PERCENT, BY WEIGHT OF THE MONOMER, OF A HYDROGEN PEROXIDE CATALYST, ABOUT 0.003 PERCENT TO 3 PERCENT, BY WEIGHT OF THE MONOMER, OF AN ALKALI METAL FORMALDEHYDE SULOFXYLATE AND ABOUT 0.2 PERCENT TO 1.5 PERCENT BY WEIGHT OF THE MONOMER, OF A FATTY ACID SULFATE SALT OF THE FORMULA
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |