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Abstract
Abstract AR1-SO2-N(-Z)-SO2-AR2-A-Y-A-AR3(-A-Y-A)-SO2-N(-Z)-SO2-R DYED WITH BASIC DYESTUFFS COMPRISING A CONVENTIONAL HIGH MOLECULAR WEIGHT AROMATIC FIBER FORMING POLYAMIDE, CONTAINING REPEATING CARBONAMIDE GROUPS AS AN INTEGRAL PART OF THE POLYMERIC CHAIN SEPARATED BY A MEMBER SELECTED FROM THE GROUP CONSISTING OF AROMATIC AND AROMATIC HETEROCYCLIC MOIETIES AND FROM 3 TO 30 PERCENT BY WEIGHT, BASED ON THE COMPOSITION AS A WHOLE OF A POLYAMIDE WHICH COMPRISES FROM 30 TO 100 MOL. PERCENT OF DISULFONEIMIDE SEGMENTS OF THE FORMULA: WHEREIN EACH SYMBOL A REPRESENTS A GROUP OF THE FORMULA -CONH- OR -NHCO-, Z REPRESENTS A HYDROGEN OR ALKALI METAL ATOM, R REPRESENTS A C1 TO C4 ALKYL RADICAL OR AN AROMATIC, ALKYL-SUBSTITUTED AROMATIC OR HALOGEN-SUBSTITUTED AROMATIC RADICAL, AR**1 AND AR**2, WHICH CAN BE THE SAME OR DIFFERENT, EACH REPRESENTS A BIVALENT AROMATIC, ALKYL-SUBSTITUTED AROMATIC OR HALOGENDISUBSTITUTED AROMATIC RADICAL, AR**3 REPRESENTS A TRIVALENT AROMATIC, ALKYL-SUBSTITUTED AROMATIC OR HALOGEN-SUBSTITUTED AROMATIC RADICAL, AND Y REPRESENTS A DIVALENT AROMATIC RADICAL AND FROM 0 TO 70 MOL PERCENT OF SAID CONVENTIONAL AROMATIC POLYAMIDE SEGMENTS.
Inventors
- 👤 G Nischk
- 👤 G Wolf
- 👤 G Blankenstein
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |