Patent US2881151A successfully refreshed from Google Patents.
US2881151A
Expired / Lapsed
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Chlorinated resins stabilized with bis-phenol compounds
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-07-15
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Granted: 1959-04-07
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Expires: 1975-07-15
Abstract
No abstract record available.
Inventors
- 👤 David W Young
- 👤 Wilbur F Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A COMPOSITION OF MATTER COMPRISING ABOUT 100 PARTS BY WEIGHT OF A CHLORINE-CONTAINING SUBSTANTIALLY SATURATED ALIPHATIC RESIN LIKE SOLID HAVING A MOLECULAR WEIGHT ABOVE ABOUT 250 AND HAVING A COMBINED CHLORINE CONTENT OF ABOUT 25 TO 70%, AND, AS A STABILIZER THEREFOR ABOUT 0.5 TO 5.0 PARTS BY WEIGHT OF A BISHENOL COMPOUND HAVING THE FORMULA R1-X-R2 WHEREIN X IS SELECTED FROM THE GROUP CONSISTING OF 2,2-ALKYLIDENE GROUPS OF 3 TO 6 CARBON ATOMS, AND 3,3-ALKYLIDENE GROUPS OF 4 TO 7 CARBON ATOMS, AND WHEREIN R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROXYPHENYL RADICALS, MONOCHLORINATED HYDROXYPHENYL RADICALS, AND MONOALKYL SUBSTITUTED HYDROXYPHENYL RADICALS HAVING 1 TO 3 CARBON ATOMS PER ALKYL GROUP.
Claim 2
Dependent Claim
114 words
A COMPOSITION OF MATTER COMPRISING ABOUT 100 PARTS BY WEIGHT OF A CHLORINE-CONTAINING SUBSTANTIALLY SATURATED ALIPHATIC RESIN LIKE SOLID HAVING A MOLECULAR WEIGHT ABOVE ABOUT 250 AND HAVING A COMBINED CHLORINE CONTENT OF ABOUT 25 TO 70%, AND, AS A STABILIZER THEREFOR ABOUT 0.5 TO 5.0 PARTS BY WEIGHT OF A BISHENOL COMPOUND HAVING THE FORMULA R1-X-R2 WHEREIN X IS SELECTED FROM THE GROUP CONSISTING OF 2,2-ALKYLIDENE GROUPS OF 3 TO 6 CARBON ATOMS, AND 3,3-ALKYLIDENE GROUPS OF 4 TO 7 CARBON ATOMS, AND WHEREIN R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROXYPHENYL RADICALS, MONOCHLORINATED HYDROXYPHENYL RADICALS, AND MONOALKYL SUBSTITUTED HYDROXYPHENYL RADICALS HAVING 1 TO 3 CARBON ATOMS PER ALKYL GROUP.
References Cited (Backward Citations)
US1989788A
Cited
US2625521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |