Phosphonamide antistatic agents
Abstract
Abstract WHEREIN R is an alkyl or alkaryl radical, X is hydrogen, methyl or ethyl, R1 and R2 are individually either alkyl or hydroxyalkyl, m is an integer and n is either 1 or 2. Typically, the compounds of the invention are applied by dipping an article such as a fiber to be coated, into a solution of the phosphonamide in a suitable solvent. A representative antistatic agent of the present invention is prepared by the stepwise reaction of phosphorus oxychloride with an ethoxylated higher straight chain primary alcohol mixture and N,Ndimethylpropylenediamine in sufficient quantities to fully replace all the chlorine. New phosphonamides with antistatic properties are provided. The phosphonamides are represented by the formula:
Inventors
- 👤 Fred S Eiseman Jr
- 👤 Leslie Millard Schenck
- 👤 John P G Beiswanger
Bibliographic Details
Claims Analysis
Total Claims: 7References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |