Patent US3705884A successfully refreshed from Google Patents.
US3705884A
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Viscous compositions and process for the production thereof
Assignee: Huels AG
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Filing: 1970-06-19
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Granted: 1972-12-12
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Expires: 1990-06-19
Abstract
Abstract VISCOUS ATACTIC POLYOLEFIN COMPOSITION HAVING VISCOSITIES WHICH ARE LESS TEMPERATURE DEPENDENT AND WHICH HAVE RELATIVELY LOW VISCOSITIES AT 100*C. WHICH ARE USEFUL AS LUBRICATING OILS, CABLE FILLING COMPOUNDS AND IN THE MANUFACTURE OF ROOFING BOARD AND SEALING COMPOUNDS, ARE PRODUCED FROM A MIXTURE OF POLYOLEFINS PRODUCED WITH A ZIEGLER CATALYST AND POLYOLEFIN PRODUCED WITH A FRIENDELCRAFTS CATALYST, PREFERABLY PRODUCED BY SUCCESSIVELY POLYMERIZING AN OLEFIN MIXTURE COMPRISING BUTENE-1, FIRST WITH THE ZIEGLER CATALYST AND THEN WITH THE FRIEDEL-CRAFTS CATALYST.
Inventors
- 👤 Albert Frese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:22
CPC Classifications
C; C10; C10M; C10M143/00; C08; C08F; C08F10/00; C08F10/14; C08F255/00; C09; C09J; C09J123/00; C09J123/02; C09J123/10; C09J123/18; C09J123/20; C10M107/00; C10M107/02; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2205/028; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 0
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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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |