US2508341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl resin emulsion
Assignee: Shawinigan Resins Corp
•
Filing: 1946-06-19
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Granted: 1950-05-16
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Expires: 1966-06-19
Abstract
No abstract record available.
Inventors
- 👤 Wilfred K Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:50
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A PROCESS FOR PREPARING A STABLE AQUEOUS EMULSION CONTAINING MORE THAN 25 PARTS FOR EACH 100 PARTS OF WATER OF A POLYMERIZED NORMALLY LIQUID, WATER-INSOLUBLE POLYMERIZABLE COMPOUND CONTAIING A TERMINAL ETHYLENE GROUP, WHICH COMPRISES CARRYING OUT A POLYMERIZATION OF SAID POLYMERIZABLE COMPOUND WHILE DISPERSED IN AN AQUEOUS MEDIUM CONTAINING FOR EVERY 100 PARTS OF WATER, 0.01-2.0 PARTS OF NON-POLYMERIZABLE SURFACE TENSION DEPRESSANT, 1-10 PARTS OF A HYDROPHILIC COLLOID AND A SUFFICIENT AMOUNT OF A WATERSOLUBLE PER COMPOUND TO SUPPLY 0.001-0.1 PART OF AVAILABLE OXYGEN, THE POLUMERIZABLE MATERIAL BEING INTRODUCED INTO SAID AQUEOIUS MEDIUM AT SUCH A RATE THAT NOT OVER ABOUT 25 PARTS OF MONOMER FOR EVERY 100 PARTS OF WATER ARE PRESENT SUBSTANTIALLY THROUGHOUT THE POLYMERIZATION.
Claim 2
Dependent Claim
117 words
A PROCESS FOR PREPARING A STABLE AQUEOUS EMULSION CONTAINING MORE THAN 25 PARTS FOR EACH 100 PARTS OF WATER OF A POLYMERIZED NORMALLY LIQUID, WATER-INSOLUBLE POLYMERIZABLE COMPOUND CONTAIING A TERMINAL ETHYLENE GROUP, WHICH COMPRISES CARRYING OUT A POLYMERIZATION OF SAID POLYMERIZABLE COMPOUND WHILE DISPERSED IN AN AQUEOUS MEDIUM CONTAINING FOR EVERY 100 PARTS OF WATER, 0.01-2.0 PARTS OF NON-POLYMERIZABLE SURFACE TENSION DEPRESSANT, 1-10 PARTS OF A HYDROPHILIC COLLOID AND A SUFFICIENT AMOUNT OF A WATERSOLUBLE PER COMPOUND TO SUPPLY 0.001-0.1 PART OF AVAILABLE OXYGEN, THE POLUMERIZABLE MATERIAL BEING INTRODUCED INTO SAID AQUEOIUS MEDIUM AT SUCH A RATE THAT NOT OVER ABOUT 25 PARTS OF MONOMER FOR EVERY 100 PARTS OF WATER ARE PRESENT SUBSTANTIALLY THROUGHOUT THE POLYMERIZATION.
References Cited (Backward Citations)
US2068424A
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US2109981A
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US2363951A
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US2339184A
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US2398344A
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US2444396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |