Patent US3226355A successfully refreshed from Google Patents.
US3226355A
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Flame resistant compositions containing chlorosulfonated polyethylene, epoxy resin, and phosphonitrilic chloride
Assignee: BTR Industries Ltd
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Filing: 1961-10-18
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Granted: 1965-12-28
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Expires: 1981-10-18
Abstract
No abstract record available.
Inventors
- 👤 Singleton George
- 👤 Ross John Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:40
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/097; C01B21/098; C01B21/0986; C08; C08L; C08L23/00; C08L23/26; C08L23/32; C08L23/34; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AN ELASTOMERIC HEAT-RESISTANT COMPOSITION CONSISTING ESSENTIALLY OF CHLOROSULFONATED POLYETHYLENE, PHOSPHONITRILIC CHLORIDE POLYMER AND EPOXY RESIN IN WHICH THE PROPORTION BY WEIGHT OF THE PHOSPHONITRILIC CHLORIDE POLYMER TO THE CHLOROSULFONATED POLYETHYLENE IS BETWEEN 1:1 AND 1:10 AND THE PROPORTION BY WEIGHT OF EPOXY RESIN IS IN THE RANGE OF 10% TO 30% OF THE WEIGHT OF THE CHLOROSULFONATED POLYETHYLENE.
Claim 2
Dependent Claim
58 words
AN ELASTOMERIC HEAT-RESISTANT COMPOSITION CONSISTING ESSENTIALLY OF CHLOROSULFONATED POLYETHYLENE, PHOSPHONITRILIC CHLORIDE POLYMER AND EPOXY RESIN IN WHICH THE PROPORTION BY WEIGHT OF THE PHOSPHONITRILIC CHLORIDE POLYMER TO THE CHLOROSULFONATED POLYETHYLENE IS BETWEEN 1:1 AND 1:10 AND THE PROPORTION BY WEIGHT OF EPOXY RESIN IS IN THE RANGE OF 10% TO 30% OF THE WEIGHT OF THE CHLOROSULFONATED POLYETHYLENE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |