Patent US2907728A successfully refreshed from Google Patents.
US2907728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions of diphenolic acid co-amides and polyepoxides
Assignee: SC Johnson and Son Inc
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Filing: 1957-03-15
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Granted: 1959-10-06
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Expires: 1977-03-15
Abstract
No abstract record available.
Inventors
- 👤 Sylvan O Greenlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:34
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A COMPOSITION OF MATTER COMPRISING THE INSOLUBLE, INFLUSIBLE REACTION PRODUCT OF (A) A MIXED POLYAMIDE OF (1) A PENTANIOC ACID CONSISTING ESSENTIAL OF 4,4-BIS(4HYDROXYARYL) PENTANOIC ACID WHEREIN THE HYDROXYARYL RADICAL IS A HYDROXPHENYL RADICAL AND IS FREE FROM SUBSTITUENTS OTHER THAN ALKYL GROUPS OF FROM 1-5 CARBON ATOMS (2) AT LEAST ONE ADDITIONAL CARBOXYLIC ACID, AND (3) A POLYAMINE WHEREIN AT LEAST TWO OF THE AMINO GROUPS EACH CONTAIN AT LEAST ONE AMINO HYDROGEN, AND THE AMINO GROUPS ARE THE SOLE AMIDE GROUPS, AND (B) A POLY EPOXIDE CONTAINING AN AVERAGE OF MORE THAN ONE EPOXIDE GROUP PER MOLECULE AND BEING FREE FROM FUNCTIONAL GROUPS REACTIVE WITH (A) OTHER THAN HYDROXYL, CARBOXYL AND EPOXIDE, AND WHEREIN THE EPOXY OXYGEN ATOMS BRIDGE ADJACENT CARBON ATOMS, AND WITH THE ACTIVE HYDROGEN GROUPS OF THE POLYAMIDE OF (A) AND THE EPOXIDE GROUPS OF (B) PRESENT ON AN EQUIVALENT RATIO OF FROM 1:6 ATO 6:1.
Claim 2
Dependent Claim
151 words
A COMPOSITION OF MATTER COMPRISING THE INSOLUBLE, INFLUSIBLE REACTION PRODUCT OF (A) A MIXED POLYAMIDE OF (1) A PENTANIOC ACID CONSISTING ESSENTIAL OF 4,4-BIS(4HYDROXYARYL) PENTANOIC ACID WHEREIN THE HYDROXYARYL RADICAL IS A HYDROXPHENYL RADICAL AND IS FREE FROM SUBSTITUENTS OTHER THAN ALKYL GROUPS OF FROM 1-5 CARBON ATOMS (2) AT LEAST ONE ADDITIONAL CARBOXYLIC ACID, AND (3) A POLYAMINE WHEREIN AT LEAST TWO OF THE AMINO GROUPS EACH CONTAIN AT LEAST ONE AMINO HYDROGEN, AND THE AMINO GROUPS ARE THE SOLE AMIDE GROUPS, AND (B) A POLY EPOXIDE CONTAINING AN AVERAGE OF MORE THAN ONE EPOXIDE GROUP PER MOLECULE AND BEING FREE FROM FUNCTIONAL GROUPS REACTIVE WITH (A) OTHER THAN HYDROXYL, CARBOXYL AND EPOXIDE, AND WHEREIN THE EPOXY OXYGEN ATOMS BRIDGE ADJACENT CARBON ATOMS, AND WITH THE ACTIVE HYDROGEN GROUPS OF THE POLYAMIDE OF (A) AND THE EPOXIDE GROUPS OF (B) PRESENT ON AN EQUIVALENT RATIO OF FROM 1:6 ATO 6:1.
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) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |