US2763635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high conversion plasticized synthetic elastomers in aqueous emulsion
Assignee: Phillips Petroleum Co
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Filing: 1951-08-27
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Granted: 1956-09-18
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Expires: 1971-08-27
Abstract
No abstract record available.
Inventors
- 👤 Charles M Tucker
- 👤 Weldin G Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:50
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A METHOD FOR PRODUCING PLASTICIZED SYNTHETIC ELASTOMERS WHICH COMPRISED INTIALLY EMULSIFYING A MINOR AMOUNT OF THE TOTAL MONOMERIC MATERIAL, ALL OF THE WATER FOR THE TOTAL AQUEOUS PHASE EXCEPT SUFFICIENT TO DISSOLVE THE SOLUBLE SALTS TO BE SUBSEQUENTLY ADDED, MORE THEN 50 PARTS OF A MODIFIER BASED ON 100 PARTS OF THE TOTAL MODIFIER, AND A SUFFICIENT QUANTITY OF THE INITIATOR AND ACTIVATOR MATERIAL AND POLYMERIZING TO OBTAIN AT LEAST A 50 PER CENT CONVERSION OF SAID MONOMERIC MATERIAL, ALLOWING THE EMULSION POLYMERIZATION TO CONTINUE TO A CONVERSION OF AT LEAST 50 PER CENT BASED ON THE INITIAL CHARGE OF SAID MONOMERIC MATERIAL, AND ADDING TO THE INITAL EMULSION SYSTEM THE REMAINING INGREDIENTS COMPRISING SAID MONOMERIC MATERIAL, AND POLYMERIZING SAID SYSTEM SAID MONOVERSION OF AT LEAST 80 PER CENT BASED ON SAID TOTAL MONOMERIC MATERIAL.
Claim 2
Independent Claim
135 words
A METHOD FOR PRODUCING PLASTICIZED SYNTHETIC ELASTOMERS WHICH COMPRISED INTIALLY EMULSIFYING A MINOR AMOUNT OF THE TOTAL MONOMERIC MATERIAL, ALL OF THE WATER FOR THE TOTAL AQUEOUS PHASE EXCEPT SUFFICIENT TO DISSOLVE THE SOLUBLE SALTS TO BE SUBSEQUENTLY ADDED, MORE THEN 50 PARTS OF A MODIFIER BASED ON 100 PARTS OF THE TOTAL MODIFIER, AND A SUFFICIENT QUANTITY OF THE INITIATOR AND ACTIVATOR MATERIAL AND POLYMERIZING TO OBTAIN AT LEAST A 50 PER CENT CONVERSION OF SAID MONOMERIC MATERIAL, ALLOWING THE EMULSION POLYMERIZATION TO CONTINUE TO A CONVERSION OF AT LEAST 50 PER CENT BASED ON THE INITIAL CHARGE OF SAID MONOMERIC MATERIAL, AND ADDING TO THE INITAL EMULSION SYSTEM THE REMAINING INGREDIENTS COMPRISING SAID MONOMERIC MATERIAL, AND POLYMERIZING SAID SYSTEM SAID MONOVERSION OF AT LEAST 80 PER CENT BASED ON SAID TOTAL MONOMERIC MATERIAL.
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) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |