US2801226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous compositions
Assignee: Wyeth Holdings LLC
•
Filing: 1953-12-04
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Granted: 1957-07-30
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Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
- 👤 Henry P Wohnsiedler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:06
CPC Classifications
C; C08; C08L; C08L77/00; C08L77/12; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A SUBSTANTIALLY HOMOGENEOUS RESINOUS COMPOSITION OF MATTER COMPRISING (1) A HEAT- CURABLE AMINOPLATIC RESIN AND (2) A THERMOPLASTIC POLYHYDROXYESTERAMIDE CONDENSATION PRODUCT OF (A) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL DIAMINES CONTAINING FROM TO 6 CARBON ATOMS AND ALKYLOL AMINES CONTAINING FROM 2 TO 6 CARBON ATOMS, (B) A SATURATED DICARBOXYLIC ACID CONTAINING FROM 3 TO 10 CARBON ATOMS AND (C) A SATURATED POLYHYDROXY ALCOHOL CONTAINING FROM 3 TO 5 CARBON ATOMS AND AT LEAST 3 HYDROXY GROUPS WHEREIN THE PROPORTIONS OF (A), (B) AND (C) YIELD A RATIO OF ESTER TO AMIDE LINKAGES OF AT LEAST 1:2 AND A RATIO OF HYDROXYL TO ESTER HIGHER THAN 1:1, AND THE INGREDIENTS OF (1) AND (2) BEING PRESENT IN THE SAID COMPOSITION IN THE RATIO OF, BY WEIGHT, FROM ABOUT 45 TO ABOUT 95 PARTS OF THE FORMER TO FROM ABOUT 55 TO ABOUT 5 PARTS OF THE LATTER.
Claim 2
Dependent Claim
150 words
A SUBSTANTIALLY HOMOGENEOUS RESINOUS COMPOSITION OF MATTER COMPRISING (1) A HEAT- CURABLE AMINOPLATIC RESIN AND (2) A THERMOPLASTIC POLYHYDROXYESTERAMIDE CONDENSATION PRODUCT OF (A) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL DIAMINES CONTAINING FROM TO 6 CARBON ATOMS AND ALKYLOL AMINES CONTAINING FROM 2 TO 6 CARBON ATOMS, (B) A SATURATED DICARBOXYLIC ACID CONTAINING FROM 3 TO 10 CARBON ATOMS AND (C) A SATURATED POLYHYDROXY ALCOHOL CONTAINING FROM 3 TO 5 CARBON ATOMS AND AT LEAST 3 HYDROXY GROUPS WHEREIN THE PROPORTIONS OF (A), (B) AND (C) YIELD A RATIO OF ESTER TO AMIDE LINKAGES OF AT LEAST 1:2 AND A RATIO OF HYDROXYL TO ESTER HIGHER THAN 1:1, AND THE INGREDIENTS OF (1) AND (2) BEING PRESENT IN THE SAID COMPOSITION IN THE RATIO OF, BY WEIGHT, FROM ABOUT 45 TO ABOUT 95 PARTS OF THE FORMER TO FROM ABOUT 55 TO ABOUT 5 PARTS OF THE LATTER.
References Cited (Backward Citations)
US2490003A
Cited
US2490005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |