Method of deagglomerating polymer particles
Abstract
Abstract AGGLOMERATES OF POLYMER PARTICLES IN A PLYMER POWDER ARE BROKEN UP TO INCREASE THE DENSITY, THE SURFACE AREA, AND THE FLUIDITY OF THE POLYMER POWDER BY CHARGING THE POLYMER POWDER TO A DEAGGLMERATION ZONE, CHARGING SILICON-CONTAINING COMPOUND TO THE DEAGGLOMERATION ZONE, CHARGING A LIQUID SUCH AS CYCLOHEXANE TO THE DEAGGLOMERATION ZONE, AND IMPARTING MOTION TO THE DEAGGLOMERATION ZONE SUCH AS BY ROTATION ABOUT A HORIZONTAL AXIS TO BREAK UP THE AGGLOMERATES OF POLYMER PARTICLES. THIS TREATMENT INCREASES THE BULK DENSITY OF THE POLYMER POWDER BY A FACTOR OF ABOUT 3, THE SURFACE AREA BY A FACTOR OF ABOUT 14, AND THE FLUIDITY BY A FACTOR OF ABOUT 14. THIS TREATMENT OF THE POLYMER POWDER BROADENS THE UTILITY OF THE POLYMER SUCH AS BY RENDERING IT MORE AMENABLE TO POWDER MOLDING AND THE LIKE.
Inventors
- 👤 Wilhelm E Walles
- 👤 James J Davies
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |