US3282902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable polysulfide compositions, methods and vulcanizates
Assignee: ATK Launch Systems LLC
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Filing: 1963-12-04
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Granted: 1966-11-01
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Julian R Panek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:26
CPC Classifications
C; C08; C08L; C08L81/00; C08L81/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
A CURABLE COMPOSITION COMPRISING, IN WEIGHT RATIO, (A) ONE HUNDRED PATHS BY WEIGHT OF POLYSULFIDE POLYMER THAT IS ORDINARILY LIQUID AT 25* C. AND OF THE FORMULA HS(RS)NRSH, WHEREIN R IS A DIVALENT ALIPHATIC RADICAL SELECTED FFOM THE GROUP CONSISTING OF ALKYLENE, XOAHYDROCARBON AND THIAHYDROCARBON RADICALS; (B) ABOUT ONE TO TWENTY PARTS BY WEIGHT OF METAL OXIDE CURING AGENT; AND (C) ABOUT TWO TO FIFTY PARTS BY WEIGHT OF ORTHONITROANISOLE.
Claim 2
Dependent Claim
70 words
A CURABLE COMPOSITION COMPRISING, IN WEIGHT RATIO, (A) ONE HUNDRED PATHS BY WEIGHT OF POLYSULFIDE POLYMER THAT IS ORDINARILY LIQUID AT 25* C. AND OF THE FORMULA HS(RS)NRSH, WHEREIN R IS A DIVALENT ALIPHATIC RADICAL SELECTED FFOM THE GROUP CONSISTING OF ALKYLENE, XOAHYDROCARBON AND THIAHYDROCARBON RADICALS; (B) ABOUT ONE TO TWENTY PARTS BY WEIGHT OF METAL OXIDE CURING AGENT; AND (C) ABOUT TWO TO FIFTY PARTS BY WEIGHT OF ORTHONITROANISOLE.
Claim 3
Independent Claim
77 words
A METHOD FOR CURING LIQUID POLYSULFIDE POLYMER OF THE FORMULA HS(RSS) NRSH WHEREIN R IS A DIVALENT ALIPHATIC RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYLENE, OXAHYDROCARBON AND THIAHYDROCARBON RADICALS COMPRISING, (A) ADMIXING WITH SAID POLYMER ABOUT 2 TO 50 PARTS BY WEIGHT OF ORTHONITROANISOLE AND ONE TO TWENTY PARTS BY WEIGHT OF METAL OXIDE CURING AGENT PER ONE HUNDRED PARTS BY WEIGHT OF POLYMER, AND (B) SUBJECTING THE ADMIXTURE OF STEP 8A) TO ELEVATED CURING TEMPERATURES.
Claim 4
Independent Claim
77 words
A METHOD FOR CURING LIQUID POLYSULFIDE POLYMER OF THE FORMULA HS(RSS) NRSH WHEREIN R IS A DIVALENT ALIPHATIC RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYLENE, OXAHYDROCARBON AND THIAHYDROCARBON RADICALS COMPRISING, (A) ADMIXING WITH SAID POLYMER ABOUT 2 TO 50 PARTS BY WEIGHT OF ORTHONITROANISOLE AND ONE TO TWENTY PARTS BY WEIGHT OF METAL OXIDE CURING AGENT PER ONE HUNDRED PARTS BY WEIGHT OF POLYMER, AND (B) SUBJECTING THE ADMIXTURE OF STEP 8A) TO ELEVATED CURING TEMPERATURES.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |