Patent US3050529A successfully refreshed from Google Patents.
US3050529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxylic acid-polyamine reaction mixture
Assignee: WR Grace and Co
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Filing: 1960-12-28
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Granted: 1962-08-21
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Expires: 1980-12-28
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth C Dearborn
- 👤 Philip K Isaacs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:14
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0605; C08G73/0616; C08G69/00; C08G69/02; C08G69/26; C08G69/34; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L79/00; C08L79/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A COMPOSITION DERIVED BY REACTING IN A DEOXYGENATED SYSTEM 4 MOLES OF OLEIC ACID, 1 MOL OF A MIXTURE OF DIMERIC AND TRIMERIC FATTY ACIDS, 3 MOLES OF SEBACIC ACID AND 8 MOLES OF TRIETHYLENE TETRAMINE AT A TEMPERATURE OF ABOUT 50*C. TO 240*C. AND A PRESSURE OF ABOUT 10 TO 760MM. HG WHILE CONTINUOUSLY REMOVING THE WATER OF REACTION, AND CONTINUOUSLY THE REACTION UNTIL THE FLOW OF WATER OF REACTION SUBSTANTIALLY CEASES, SAID DIMERIC-TRIMERIC FATTY ACID MIXTURE BEING A MIXTURE OF POLYMERIZED ACIDS CONSISTING OF ABOUT 75 PERCENT DIMERIC AND 25 PERCENT TRIMERIC ACIDS DERIVED FROM A MIXTURE OF UNSATURATED 28-CARBON MONOCARBOXYLIC ACIDS.
Claim 2
Dependent Claim
104 words
A COMPOSITION DERIVED BY REACTING IN A DEOXYGENATED SYSTEM 4 MOLES OF OLEIC ACID, 1 MOL OF A MIXTURE OF DIMERIC AND TRIMERIC FATTY ACIDS, 3 MOLES OF SEBACIC ACID AND 8 MOLES OF TRIETHYLENE TETRAMINE AT A TEMPERATURE OF ABOUT 50*C. TO 240*C. AND A PRESSURE OF ABOUT 10 TO 760MM. HG WHILE CONTINUOUSLY REMOVING THE WATER OF REACTION, AND CONTINUOUSLY THE REACTION UNTIL THE FLOW OF WATER OF REACTION SUBSTANTIALLY CEASES, SAID DIMERIC-TRIMERIC FATTY ACID MIXTURE BEING A MIXTURE OF POLYMERIZED ACIDS CONSISTING OF ABOUT 75 PERCENT DIMERIC AND 25 PERCENT TRIMERIC ACIDS DERIVED FROM A MIXTURE OF UNSATURATED 28-CARBON MONOCARBOXYLIC ACIDS.
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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |