US3752868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing dyeable polyolefin
Assignee: JNC Corp
•
Filing: 1971-05-24
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Granted: 1973-08-14
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Expires: 1991-05-24
Abstract
Abstract METHOD FOR PRODUCING DYEABLE POLYOLEFIN WHICH COMPRISES GRAFT-COPOLYMERIZING A VINYL MONOMER CONTAINING AT LEAST ONE BASIC NITROGEN ATOM WITH A POLYOLEFIN TO AN EXTENT MORE THAN HALF THE AMOUNT TO BE INCLUDED IN THE FINAL GRAFT-COPOLYMERIZED POLYMER AND THEN REACTING A NON-VINYLIC ACIDIC COMPOUND WITH THUS GRAFT-COPOLYMERIZED PRODUCT, PREFERABLY IN THE GRAFT-COPOLYMERIZING SYSTEM. THIS DYEABLE POLYOLEFIN HAS EXCELLENT DYE AFFINITY TO ACID DYES WHILE RETAINING EXCELLENT MECHANICAL PROPERTIES OF POLYOLEFIN.
Inventors
- 👤 K Kaku
- 👤 M Asaba
- 👤 S Matsumoto
- 👤 Y Gondo
- 👤 A Kachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:24
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; C08F8/00; C08F8/44; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |