Textile materials and the process for finishing the same
Abstract
Abstract TEXTILE MATERIALS ARE FINISHED BY TREATMENT WITH AN AQUEOUS BATH WHICH CONTAINS A POLYURETHANE PREPOLYMER HAVING FREE ISOCYANATE GROUPS WHICH IN TURN HAS BEEN OBTAINED FROM AN ORGANIC COMPOUND HAVING ACTIVE HYDROGEN CONTAINING GROUPS AND AN ORGANIC POLYISOCYANATE, AND AN ORGANO POLYSIOLOXANE HAVING A MOLECULAR WEIGHT OF TO ABOUT 25,000 AND CONTAINING AT LEAST TWO ACTIVE HYDROGEN CONTAINING GROUPS. THE ORGANO POLYSILOXANE IS REACTIVE WITH THE ISOCYANATO PREPOLYMER O THE TEXTILE SUBSTRATE IN ORGER TO GIVE THE TEXTILE MATERIAL A FULL PLEASANTLY SOFT, SUPPLY HAND AND REDUCE SUSCEPTIBILITY TO SOILING. ONE MAY USE POLYMERS OR COPOLYMERS PREPARED FROM VINYL OR DIVINYL MONOMERS IN THE AQUEOUS BATH ALONG WITH THE OTHER COMPONENTS.
Inventors
- 👤 Wolfgang Klebert
- 👤 Karl Schafer
- 👤 Heinz Griepentrog
- 👤 Friedrich Reich
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |