Patent US2928759A successfully refreshed from Google Patents.
US2928759A
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Isoolefin-vinyl aromatic copolymer latex containing an organic anionic sulfate and a salt of a dihydrogen ortho-phosphate
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-02-27
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Granted: 1960-03-15
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Expires: 1977-02-27
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Newberg
- 👤 Alfred L Miller
- 👤 Mcculloch William John Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:57
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; C; C08; C08K; C08K3/00; C08K3/32; C08K5/00; C08K5/36; C08K5/41; C08K5/42; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; C08L23/26; C08L23/28; C08L23/283; C08L71/00; C08L71/02; C09; C09D; C09D123/00; C09D123/26; C09D123/28; C09D123/283; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A LATEX CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF AN ISOBUTYLENE-STYRENE COPOLYMER HAVING ABOUT 50% COMBINED STYRENE AND HAVING A STAUDINGER MOLECULAR WEIGHT OF ABOUT 60,000 ABOUT 1 TO 20 PARTS BY WEIGHT OF THE SODIUM SALT OF A SULFONATED POLYETHYLENE OXIDE ADDUCT OF NONYLPHENOL HAVING AN AVERAGE OF 2 ETHYLENE OXIDE UNITS/MOLECULE, ABOUT 0.25 TO 2 PARTS BY WEIGHT OF SODIUM DIHYDROGEN ORTHOPHOSPHATE, AND THE BALANCE WATER TO BRING THE TOTAL SOLIDS TO ABOUT 52 WT. PERCENT.
Claim 2
Dependent Claim
79 words
A LATEX CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF AN ISOBUTYLENE-STYRENE COPOLYMER HAVING ABOUT 50% COMBINED STYRENE AND HAVING A STAUDINGER MOLECULAR WEIGHT OF ABOUT 60,000 ABOUT 1 TO 20 PARTS BY WEIGHT OF THE SODIUM SALT OF A SULFONATED POLYETHYLENE OXIDE ADDUCT OF NONYLPHENOL HAVING AN AVERAGE OF 2 ETHYLENE OXIDE UNITS/MOLECULE, ABOUT 0.25 TO 2 PARTS BY WEIGHT OF SODIUM DIHYDROGEN ORTHOPHOSPHATE, AND THE BALANCE WATER TO BRING THE TOTAL SOLIDS TO ABOUT 52 WT. PERCENT.
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) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |