Patent US3825523A successfully refreshed from Google Patents.
US3825523A
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Polymer composition stabilized against oxidation and light
Assignee: Mitsui Chemicals Inc
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Filing: 1971-04-19
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Granted: 1974-07-23
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Expires: 1991-04-19
Abstract
Abstract AN OLEFIN POLYMER COMPOSITION STABILIZED AGAINST OXIDATION AND LIGHT IS PREPARED BY REACTING A COPOLYMER OF AN OLEFIN AND AN ETHYLENICALLY UNSATURATED ALCOHOL WITH A PHENOL DERIVATIVE OF THE FORMULA 4-(R1OOC-(CH2)M-),R2,R3-PHENOL AND/OR ORGANO-SULFUR COMPOUND OF THE FORMULA R4OOC-Z2-S-R5. THE COMPOSITION IS USED AS SUCH OR AS BLEND WITH ANOLEFIN POLYMER.
Inventors
- 👤 J Sasaki
- 👤 T Iwata
- 👤 M Yasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:38
CPC Classifications
C; C08; C08F; C08F8/00
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |