Antimicrobial textile materials
Abstract
Abstract TEXTILE MATERIALS CONTAINING REACTIVE HYDROGEN SITES, E.G. CELLULOSE SUCH AS COTTON, ARE TREATED WITH COMPOUNDS WICH, THROUGH REACTION WITH THE REACTIVE HYDROGEN SITES, INTRODUCE ANION-ACTIVE SITES. THESE ANION-ACTIVE SITES ARE THEREAFTER CHEMICALLY COMBINED IN SALT FORM WITH CATIONACTIVE MICROBICIDES. FOR EXAMPLE, A COTTON FABRIC IS REACTED WITH THE CHLORINE ATOMS OF P-N(4,6-DICHLORO)-STRIAZINYLAMINOBENZENE-CARBOXYLIC OR SULFONIC ACID AND THE ACID GROUP IS THEREAFTER REACTED WITH A BACTERICIDAL QUATERNARY AMMONIUM SALT OR AN N-CHLORO-PHENYL-ALKYLENE POLYAMINE. THE RESULTING PRODUCTS ARE BACTERICIDAL, FREE FROM ATTACK BY MILDEW AND SUITABLE FOR AUTOSTERILE SURGICAL DRESSINGS.
Inventors
- 👤 W Paulus
- 👤 O Pauli
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |