US2886543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide resin
Assignee: General Mills Inc
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Filing: 1954-08-17
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Granted: 1959-05-12
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Expires: 1974-08-17
Abstract
No abstract record available.
Inventors
- 👤 Dwight E Peerman
- 👤 Wittcoff Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:54
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A POLAMIDE RESIN COMPRISING THE REACTION PRODUCT OF THE FOLLOWING REACTANTS EMPLOYED IN THE PROPORTIONS INDICATED: (A) ONE EQUIVALENT OF POLYMERIC FAT ACIDS, (B) 0.1 TO 0.4 EQUIVALENT OF A SATURATED DICARBOXYLIC ACID CONTAINING FROM 5 TO 10 CARBON ATOMS, (C) 0.3 TO 1.5 EQUIVALENT OF AN ALKYLENE DIAMINE CONTAINING FROM 2 TO 6 CARBON ATOMS (D) 0.2 TO 1.2 EQUIVALENT OF A POLYALKLENE POLYAMINE CONTAINING FROM 3 TO 5 AMINO GROUPS SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINO GROUPS AND IN WHICH THE ALKYLENE GROUPS CONTAIN FROM 2 TO 3 CARBON ATOMS, THE TOTAL EQUIVALENTS OF AMINE PER EQUIVALENT OF POLYBASIC ACID BETING WITHIN THE RANGE OF 1.2 TO 2.5.
Claim 2
Dependent Claim
114 words
A POLAMIDE RESIN COMPRISING THE REACTION PRODUCT OF THE FOLLOWING REACTANTS EMPLOYED IN THE PROPORTIONS INDICATED: (A) ONE EQUIVALENT OF POLYMERIC FAT ACIDS, (B) 0.1 TO 0.4 EQUIVALENT OF A SATURATED DICARBOXYLIC ACID CONTAINING FROM 5 TO 10 CARBON ATOMS, (C) 0.3 TO 1.5 EQUIVALENT OF AN ALKYLENE DIAMINE CONTAINING FROM 2 TO 6 CARBON ATOMS (D) 0.2 TO 1.2 EQUIVALENT OF A POLYALKLENE POLYAMINE CONTAINING FROM 3 TO 5 AMINO GROUPS SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINO GROUPS AND IN WHICH THE ALKYLENE GROUPS CONTAIN FROM 2 TO 3 CARBON ATOMS, THE TOTAL EQUIVALENTS OF AMINE PER EQUIVALENT OF POLYBASIC ACID BETING WITHIN THE RANGE OF 1.2 TO 2.5.
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |