Patent US2679512A successfully refreshed from Google Patents.
US2679512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidic esters of oxypropylated ethylenetetramines
Assignee: Baker Petrolite LLC
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Filing: 1951-05-14
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Granted: 1954-05-25
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Expires: 1971-05-14
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:29
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2618; C08G65/2621; C08G65/2624; C08G63/00; C08G63/66; C08G63/668; C08G63/672; C08G63/68; C08G63/685; C08G63/6854; C08G63/6856; C08G65/32; C08G65/329; C08G65/331; C08G65/332
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
A HYDROPHILE SYNTHETIC PRODUCT WHICH IS THE ESTER OF (A) A POLYCARBOXY ACID WITH (B) A HIGH MOLAL OXYPROPYLATED MONOMERIC TETRAMINO COMPOUND WITH THE PROVISO THAT (A) THE MONOMERIC TETRAMINO COMPOUND BE FREE FROM ANY RADICAL HAVING AT LEAST 8 UNINTERRUPTED CARBON ATOMS; (B) THE MONOMERIC TETRAMINO COMPOUND HAVE A MOLECULAR WEIGHT OF NOT OVER 800 AND AT LEAST A PLURALITY OF REACTIVE HYDROGEN ATOMS; (C) THE OXYPROPYLATED MONOMERIC TETRAMINO COMPOUND HAVE A MOLECULAR WEIGHT OF 2500 TO 30,000 ON AN AVERAGE STATISTICAL BASIS; (D) THE RATIO OF PROPYLENE OXIDE PER INITIAL REACTIVE HYDROGEN ATOM OF THE MONOMERIC TETRAMINO COMPOUND BE WITHIN THE RANGE OF 7 TO 70; (E) THE MONOMERIC TETRAMINO COMPOUND REPRESENT NOT MORE THAN 20% BY WEIGHT OF THE OXYPROPYLATED MONOMERIC TETRAMINO COMPOUND ON A STATISTICAL BASIS; (F) THE PRECEDING PROVISOS BEING BASED ON THE ASSUMPTION OF COMPLETE REACTION BETWEEN THE PROPYLENE OXIDE AND THE MONOMERIC TETRAMINO COMPOUND; (G) THE NITROGEN ATOMS ARE LINKED BY ETHYLENE RADICALS; (H) THE RATIO OF POLYCARBOXY ACID TO OXYPROPYLATED MONOMERIC TETRAMINO COMPOUND BEING ONE MOLE OF THE FORMER FOR EACH REACTIVE HYDROGEN ATOM OF THE LATTER; AND (I) THE POLYCARBOXY ACID BE SELECTED FROM THE CLASS CONSISTING OF ISOCYCLIC AND ACYCLIC DICARBOXY AND TRICARBOXY ACIDS COMPOSED OF OXYGEN, CARBON AND HYDROGEN AND HAVING NOT MORE THAN 3 CARBON ATOMS.
Claim 2
Dependent Claim
218 words
A HYDROPHILE SYNTHETIC PRODUCT WHICH IS THE ESTER OF (A) A POLYCARBOXY ACID WITH (B) A HIGH MOLAL OXYPROPYLATED MONOMERIC TETRAMINO COMPOUND WITH THE PROVISO THAT (A) THE MONOMERIC TETRAMINO COMPOUND BE FREE FROM ANY RADICAL HAVING AT LEAST 8 UNINTERRUPTED CARBON ATOMS; (B) THE MONOMERIC TETRAMINO COMPOUND HAVE A MOLECULAR WEIGHT OF NOT OVER 800 AND AT LEAST A PLURALITY OF REACTIVE HYDROGEN ATOMS; (C) THE OXYPROPYLATED MONOMERIC TETRAMINO COMPOUND HAVE A MOLECULAR WEIGHT OF 2500 TO 30,000 ON AN AVERAGE STATISTICAL BASIS; (D) THE RATIO OF PROPYLENE OXIDE PER INITIAL REACTIVE HYDROGEN ATOM OF THE MONOMERIC TETRAMINO COMPOUND BE WITHIN THE RANGE OF 7 TO 70; (E) THE MONOMERIC TETRAMINO COMPOUND REPRESENT NOT MORE THAN 20% BY WEIGHT OF THE OXYPROPYLATED MONOMERIC TETRAMINO COMPOUND ON A STATISTICAL BASIS; (F) THE PRECEDING PROVISOS BEING BASED ON THE ASSUMPTION OF COMPLETE REACTION BETWEEN THE PROPYLENE OXIDE AND THE MONOMERIC TETRAMINO COMPOUND; (G) THE NITROGEN ATOMS ARE LINKED BY ETHYLENE RADICALS; (H) THE RATIO OF POLYCARBOXY ACID TO OXYPROPYLATED MONOMERIC TETRAMINO COMPOUND BEING ONE MOLE OF THE FORMER FOR EACH REACTIVE HYDROGEN ATOM OF THE LATTER; AND (I) THE POLYCARBOXY ACID BE SELECTED FROM THE CLASS CONSISTING OF ISOCYCLIC AND ACYCLIC DICARBOXY AND TRICARBOXY ACIDS COMPOSED OF OXYGEN, CARBON AND HYDROGEN AND HAVING NOT MORE THAN 3 CARBON ATOMS.
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) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |