Azines and hydrazones as paint drier accelerators
Abstract
Abstract ORGANIC AZINES OR HYDRAZONES ARE USED AS ACTIVATORS FOR COBALT, ZIRACONIUM, IRON, MANGANESE AND ZINCO CARBOXYLATES DRIERS FOR DRYING ALKYD PAINTS AND VARNISHES OR TO PROMOTE OXIDATIVE POLYMERIZATION OF OLEFINIC POLYMER SYSTEMS, PARTICULARLY UNSATURATED POLYESTER RESINS IN CONJUNCTION WITH ORGANIC PEROXIDES AND COBALT OR OTHER TRANSITION METAL DRIERS. THE AZINES OR HYDRAZONES CAN BE STABILIZED WITH PHENOLIC ANTIOXIDANTS. THE AZINES BEING MOST PREFERRED. PARTICUDRAZONES, CYCLOHEXANE AZINE BEING MOST PREFERRED. PARTICULARLY GOOD RESULTS ARE OBTAINED WITH COBALT DRIERS AND AZINES (OR HYDRAZONES) DUE TO THE FORMATION OF A BLUE COMPLEX WHICH HAS A WHITENING EFFECT ON THE COMPOSITION.
Inventors
- 👤 Christian H Stapfer
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |