US2824848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide resin suspensoids
Assignee: General Mills Inc
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Filing: 1956-08-08
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Granted: 1958-02-25
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Expires: 1976-08-08
Abstract
No abstract record available.
Inventors
- 👤 Wittcoff Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:15
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/05; C08J2377/00; C08J2377/06; C08J2377/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A SUSPENSOID IN AN AQUEOUS MEDIUM OF (A) FROM 20-90% OF A FIRST POLYAMIDE MELTING WITHIN THE APPROXIMATE RANGE OF 130-210* C. AND BEING DERIVED FROM A MIXTURE OF FROM 85-98% POLYMERIC FAT ACIDS AND FROM 2-1K% OF NON-FATTY POLYCARBOXYLIC ACID IN WHICH THE CARBOXYL GROUPS ARE SEPARATED BY FROM 3 TO 8 CARBON ATOMS, AND AN ALIPHATIC DIAMINE AND (B) FROM 10-80% OF A SECOND POLYAMIDE MELTING BELOW 100* C. AND BEING DERIVED FROM POLYMERIC FAT ACIDS AND AN ALIPHATIC POLYAMINE, THE AMINO GROUPS PRIMARILY INVOLVED IN THE POLYAMIDE FORMATION BEING SEPARAATED BY AT LEAST 3 ATOMS; THE MIXTURE OF POLYAMIDES HAVING AN AMINE NUMBER OF AT LEAST 5 AND BEING DISPERSED IN AN AQUEOUS MEDIUM BY MEANS OF SUFFICIENT ACID TO PRODUCE A STABLE SUSPENSOID.
Claim 2
Dependent Claim
127 words
A SUSPENSOID IN AN AQUEOUS MEDIUM OF (A) FROM 20-90% OF A FIRST POLYAMIDE MELTING WITHIN THE APPROXIMATE RANGE OF 130-210* C. AND BEING DERIVED FROM A MIXTURE OF FROM 85-98% POLYMERIC FAT ACIDS AND FROM 2-1K% OF NON-FATTY POLYCARBOXYLIC ACID IN WHICH THE CARBOXYL GROUPS ARE SEPARATED BY FROM 3 TO 8 CARBON ATOMS, AND AN ALIPHATIC DIAMINE AND (B) FROM 10-80% OF A SECOND POLYAMIDE MELTING BELOW 100* C. AND BEING DERIVED FROM POLYMERIC FAT ACIDS AND AN ALIPHATIC POLYAMINE, THE AMINO GROUPS PRIMARILY INVOLVED IN THE POLYAMIDE FORMATION BEING SEPARAATED BY AT LEAST 3 ATOMS; THE MIXTURE OF POLYAMIDES HAVING AN AMINE NUMBER OF AT LEAST 5 AND BEING DISPERSED IN AN AQUEOUS MEDIUM BY MEANS OF SUFFICIENT ACID TO PRODUCE A STABLE SUSPENSOID.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |