US3694403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin compositions
Assignee: Asahi Kasei Corp
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Filing: 1970-12-02
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Granted: 1972-09-26
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Expires: 1990-12-02
Abstract
Abstract POLYOLEFIN COMPOSITION HAVING EXCELLENT TRANSPARENCY AND RIGIDITY, SAID COMPOSITION COMPRISING 30-96 PARTS BY WEIGHT OF POLYOLEFIN AND 70-4 PARTS BY WEIGHT OF MAGNESIUM CARBONATE HAVING A NUMBER AVERAGE PARTICLE DIAMETER SMALLER THAN ABOUT 50U AND A MAXIMUM PARTICLE DIAMETER OF ABOUT 100U. AN UNSATURATED CARBOXYLIC ACID OR ANHYDRIDE MAY ALSO BE ADDED TO IMPROVE THE IMPACT RESISTANCE.
Inventors
- 👤 Itsuho Aishima
- 👤 Yukichi Takashi
- 👤 Toshinori Koseki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |