US3226350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of high solids vinyl chloride polymer latex
Assignee: Goodyear Tire and Rubber Co
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Filing: 1962-07-23
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Granted: 1965-12-28
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Expires: 1982-07-23
Abstract
No abstract record available.
Inventors
- 👤 Smith Edwin Studly
- 👤 James E Sell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:57
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
THE METHOD OF EFFECTING THE AQUEOUS EMULSION POLYMERIZATON OF POLYMERIZABLE ORGANIC MONOMERS CONTAINING A SINGLE OLEFINIC DOUBLE BOND AND COMPRISING PRIMARILY VINYL CHLORIDE, WHICH COMPRISES POLYMERIZING A PORTION OF THE TOTAL POLYMERIZABLE MONOMERS TO BE CONVERTED TO POLYMER IN THE PESENCE OF A SURFACTANT FOR DISPERSING SAID MONOMERS IN WATER AND AN INTIATOR OF POLYMERIZATON OF SAID MONOMERS, THE WEIGHT RATIO OF SAID SURFACTANT TO SAID MONOMERS RANGING FROM 0.1 TO 5 PARTS PER 100 PARTS OF TOTAL MONOMERS PRESENT THROUGHOUT THE REMAINDER OF THE POLYMERIZATION REACTION ADDING ADDITIONAL SURFACTANT AND ADDITIONAL POLYMERIZABLE MONOMERS TO SAID POLYMERIZATION REACTION AT LEAST IN THE SAME RATIO AND NOT GREATER THAN 1.25 TIMES THE RATIO OF SURFACTANT TO MONOMER ADDED IMMEDIATELY PRIOR TO THE PRESENT ADDITION TO PRODUCE A CONSTANTLY INCREASING RATIO OF AMOUNT OF SURFACTANT TO POLYMER SURFACE SO AS TO BRING ABOUT THE FORMATION OF NEW POLYMER PARTICLES AND THE CONTINUED GROWTH OF THE POLYMER PARTICLES FORMED DURING THE INITIAL POLYMERIZATION REACTION AND RECOVERING THE LATEX CONTAINING AT LEAST ABOUT 61% SOLIDS.
Claim 2
Independent Claim
171 words
THE METHOD OF EFFECTING THE AQUEOUS EMULSION POLYMERIZATON OF POLYMERIZABLE ORGANIC MONOMERS CONTAINING A SINGLE OLEFINIC DOUBLE BOND AND COMPRISING PRIMARILY VINYL CHLORIDE, WHICH COMPRISES POLYMERIZING A PORTION OF THE TOTAL POLYMERIZABLE MONOMERS TO BE CONVERTED TO POLYMER IN THE PESENCE OF A SURFACTANT FOR DISPERSING SAID MONOMERS IN WATER AND AN INTIATOR OF POLYMERIZATON OF SAID MONOMERS, THE WEIGHT RATIO OF SAID SURFACTANT TO SAID MONOMERS RANGING FROM 0.1 TO 5 PARTS PER 100 PARTS OF TOTAL MONOMERS PRESENT THROUGHOUT THE REMAINDER OF THE POLYMERIZATION REACTION ADDING ADDITIONAL SURFACTANT AND ADDITIONAL POLYMERIZABLE MONOMERS TO SAID POLYMERIZATION REACTION AT LEAST IN THE SAME RATIO AND NOT GREATER THAN 1.25 TIMES THE RATIO OF SURFACTANT TO MONOMER ADDED IMMEDIATELY PRIOR TO THE PRESENT ADDITION TO PRODUCE A CONSTANTLY INCREASING RATIO OF AMOUNT OF SURFACTANT TO POLYMER SURFACE SO AS TO BRING ABOUT THE FORMATION OF NEW POLYMER PARTICLES AND THE CONTINUED GROWTH OF THE POLYMER PARTICLES FORMED DURING THE INITIAL POLYMERIZATION REACTION AND RECOVERING THE LATEX CONTAINING AT LEAST ABOUT 61% SOLIDS.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |