Patent US2537642A successfully refreshed from Google Patents.
US2537642A
Expired / Lapsed
US
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High solids synthetic rubber latex
Assignee: Bridgestone Firestone Inc
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Filing: 1947-08-08
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Granted: 1951-01-09
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Expires: 1967-08-08
Abstract
No abstract record available.
Inventors
- 👤 Robert L Bebb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:03
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
METHOD OF MAKING A HIGH SOLIDS SYNTHETIC RUBBER LATEX, WHICH INCLUDES FORMING AN EMULSION OF MONOMERS BUTADIENE AND STYRENE IN WATER IN THE RATIO OF 100 PARTS OF THE MONOMERS TO 82 TO 108 PARTS OF WATER BY MEANS OF A THREECOMPONENT EMULSIFYING AGENT CONSISTING OF (1) 2.9 TO 5 PARTS OF SOAP SELECTED FROM THE GROUP CONSISTING OF SODIUM OLEATE AND SODIUM STEARATE, (2) 1 TO 2 PARTS OF A SODIUM PHOSPHATE AND (3) 0.25 TO 3 PARTS OF A WATER SOLUBLE SALT OF A CONDENSED NAPHTHALENE SULFONIC ACID, AND POLYMERIZING THE EMULSION.
Claim 2
Dependent Claim
94 words
METHOD OF MAKING A HIGH SOLIDS SYNTHETIC RUBBER LATEX, WHICH INCLUDES FORMING AN EMULSION OF MONOMERS BUTADIENE AND STYRENE IN WATER IN THE RATIO OF 100 PARTS OF THE MONOMERS TO 82 TO 108 PARTS OF WATER BY MEANS OF A THREECOMPONENT EMULSIFYING AGENT CONSISTING OF (1) 2.9 TO 5 PARTS OF SOAP SELECTED FROM THE GROUP CONSISTING OF SODIUM OLEATE AND SODIUM STEARATE, (2) 1 TO 2 PARTS OF A SODIUM PHOSPHATE AND (3) 0.25 TO 3 PARTS OF A WATER SOLUBLE SALT OF A CONDENSED NAPHTHALENE SULFONIC ACID, AND POLYMERIZING THE EMULSION.
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) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |