Patent US3554996A successfully refreshed from Google Patents.
US3554996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making polyolefin metal-organic chelate compositions and the resulting products
Assignee: Dow Chemical Co
•
Filing: 1967-04-24
•
Granted: 1971-01-12
•
Expires: 1987-04-24
Abstract
Abstract THIS INVENTION DISCLOSES A METHOD OF CRYSTALLIZING HYDROCARBON POLYMERS AS WELL AS THE RESULTING PRODUCT. A HYDROCARBON POLYMER IS MELTED WITH A SMALL AMOUNT OF A METAL-ORGANIC CHELATE SO AS TO INDUCE THE CRYSTALLIZATION OF THE MELT AT A HIGHER TEMPERATURE THAN WOULD NORMALLY OCCUR. THE USE OF THIS METHOD AND/OR COMPOSITION IN THE FABRICATION OF USEFUL SHAPES OF TE POLYMERIC COMPOSITION RESULTS IN HIGHER PRODUCTION RATES DUE TO THE MORE RAPID CRYSTALLIZATION AND/OR HARDENING OF THE DESIRED SHAPE AND AN INCREASE IN THE TENSILE STRENGTH OF THE FINISHED PRODUCT.
Inventors
- 👤 Henry Nelson Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:07
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References 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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |