US3039990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolyamides and process for preparing same
Assignee: Monsanto Chemicals Ltd
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Filing: 1959-10-19
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Granted: 1962-06-19
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Expires: 1979-10-19
Abstract
No abstract record available.
Inventors
- 👤 William A H Huffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:17
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/42; Y; Y10; Y10S; Y10S264/00; Y10S264/61
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A FIBER-FORMING SYNTHETIC LINEAR POLYCARBONAMIDE OF THE TYPE HAVING RECURRING AMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN, AND WHEREIN SAID GROUPS ARE SEPARATED BY AT LEAST 2 CARBON ATOMS, WHICH COMPRISES THE INTERPOLYMERIZATION PRODUCT OBTAINED FROM REACTANTS COMPRISING A FIRST POLYAMIDE-FORMING COMPOSITION SELECTED FROM THE GROUP CONSISTING OF (A) A POLYMERIZABLE MONOAMINOMONOCARBOXYLIC ACID, AND (B) SUBSTANTIALLY EQUIMOLECULAR PROPORTIONS OF A DIBASIC CARBOXYLIC ACID AND A DIAMINE; AND A SECOND POLYAMIDEFORMING COMPOSITION CONSISTING OF FROM ABOUT 0.2 TO 5.0 MOLAR PERCENT BASED ON SAID FIRST POLYAMIDE-FORMING COMPOSITION OF A DIFUNCTIONAL AROMATIC COMPOUND OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
99 words
A FIBER-FORMING SYNTHETIC LINEAR POLYCARBONAMIDE OF THE TYPE HAVING RECURRING AMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN, AND WHEREIN SAID GROUPS ARE SEPARATED BY AT LEAST 2 CARBON ATOMS, WHICH COMPRISES THE INTERPOLYMERIZATION PRODUCT OBTAINED FROM REACTANTS COMPRISING A FIRST POLYAMIDE-FORMING COMPOSITION SELECTED FROM THE GROUP CONSISTING OF (A) A POLYMERIZABLE MONOAMINOMONOCARBOXYLIC ACID, AND (B) SUBSTANTIALLY EQUIMOLECULAR PROPORTIONS OF A DIBASIC CARBOXYLIC ACID AND A DIAMINE; AND A SECOND POLYAMIDEFORMING COMPOSITION CONSISTING OF FROM ABOUT 0.2 TO 5.0 MOLAR PERCENT BASED ON SAID FIRST POLYAMIDE-FORMING COMPOSITION OF A DIFUNCTIONAL AROMATIC COMPOUND OF THE GENERAL FORMULA:
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) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |