US3279928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardants, process for producing, and article comprising the same
Assignee: Kendall Refining Co
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Filing: 1960-06-07
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Granted: 1966-10-18
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Expires: 1980-06-07
Abstract
No abstract record available.
Inventors
- 👤 Franklin I L Lawrence
- 👤 Michael J Pohorilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:13
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/04; C09; C09K; C09K21/00; C09K21/06; B; B27; B27K; B27K3/00; B27K3/34; B27K3/44
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
AN ARTICLE RENDERED FIRE-RESISTANT BY MEANS OF A COMPOSITION CONSISTING ESSENTIALLY OF A HEAVY PETROLEUM RESIDUE WHICH HAS BEEN REACTED AT ABOUT 400*F. TO ABOUT 600*F. WITH ABOUT 2% TO ABOUT 15% BY WEIGHT OF A PHOSPHROUS SULFIDE TO FORM A CONDENSATION PRODUCT, SAID COMPOSITION HAVING A RING AND BALL SOFTENING POINT AT LEAST ABOUT 100*F., SAID HEAVY PETROLEUM RESIDUE HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 1,000 AND A BROMINE NUMBER OF LESS THAN ABOUT 10.
Claim 2
Dependent Claim
78 words
AN ARTICLE RENDERED FIRE-RESISTANT BY MEANS OF A COMPOSITION CONSISTING ESSENTIALLY OF A HEAVY PETROLEUM RESIDUE WHICH HAS BEEN REACTED AT ABOUT 400*F. TO ABOUT 600*F. WITH ABOUT 2% TO ABOUT 15% BY WEIGHT OF A PHOSPHROUS SULFIDE TO FORM A CONDENSATION PRODUCT, SAID COMPOSITION HAVING A RING AND BALL SOFTENING POINT AT LEAST ABOUT 100*F., SAID HEAVY PETROLEUM RESIDUE HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 1,000 AND A BROMINE NUMBER OF LESS THAN ABOUT 10.
Claim 3
Dependent Claim
108 words
A COMPOSITION FOR TREATING COMBUSTIBLE MATERIALS TO RENDER THEM FIRE-RESISTANT CONSISTING ESSENTIALLY OF A HEAVY PETROLEUM RESIDUE WHICH HAS BEEN REACTED AT ABOUT 400* F. TO ABOUT 600*F. WITH ABOUT 2% TO ABOUT 15% BY WEIGHT OF A PHOSPHOROUS SULFIDE TO FORM A CONDENSATION PRODUCT, SAID COMPOSITION HAVING A RING AND BALL SOFTENING POINT OF AT LEAST ABOUT 100*F., SAID HEAVY PETROLEUM RESIDUE HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 1,000 AND A BROMINE NUMBER OF LESS THAN ABOUT 10, THE REACTION PRODUCT FROM SAID REACTION BEING FURTHER HEATED AT ABOUT 400*F. TO ABOUT 600*F. WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SULFUR AND OXYGEN.
Claim 4
Dependent Claim
108 words
A COMPOSITION FOR TREATING COMBUSTIBLE MATERIALS TO RENDER THEM FIRE-RESISTANT CONSISTING ESSENTIALLY OF A HEAVY PETROLEUM RESIDUE WHICH HAS BEEN REACTED AT ABOUT 400* F. TO ABOUT 600*F. WITH ABOUT 2% TO ABOUT 15% BY WEIGHT OF A PHOSPHOROUS SULFIDE TO FORM A CONDENSATION PRODUCT, SAID COMPOSITION HAVING A RING AND BALL SOFTENING POINT OF AT LEAST ABOUT 100*F., SAID HEAVY PETROLEUM RESIDUE HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 1,000 AND A BROMINE NUMBER OF LESS THAN ABOUT 10, THE REACTION PRODUCT FROM SAID REACTION BEING FURTHER HEATED AT ABOUT 400*F. TO ABOUT 600*F. WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SULFUR AND OXYGEN.
Claim 5
Dependent Claim
88 words
A PROCESS FOR PRODUCING A FIRE-RESISTANT COMPOSITION WHICH COMPRISES SIBJECTING A HEAVY PETROLEUM RESIDUE HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 1,000 AND A BROMINE NUMBER OF LESS THAN ABOUT 10 TO CONDENSATION WITH ABOUT 2% TO ABOUT 15% BY WEIGHT OF A PHOSPHOROUS SULFUR AT A TEMPERATURE OF ABOUT 400*F. TO ABOUT 600*F. TO FORM A CONDENSATION PRODUCT, THEREAFTER SUBJECTING THE RESULTANT REACTION PRODUCT AT A TEMPERATURE WITHIN SAID TEMPERATURE RANGE TO FURTHER CONDENSATION WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SULFUR AND OXYGEN.
Claim 6
Dependent Claim
88 words
A PROCESS FOR PRODUCING A FIRE-RESISTANT COMPOSITION WHICH COMPRISES SIBJECTING A HEAVY PETROLEUM RESIDUE HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 1,000 AND A BROMINE NUMBER OF LESS THAN ABOUT 10 TO CONDENSATION WITH ABOUT 2% TO ABOUT 15% BY WEIGHT OF A PHOSPHOROUS SULFUR AT A TEMPERATURE OF ABOUT 400*F. TO ABOUT 600*F. TO FORM A CONDENSATION PRODUCT, THEREAFTER SUBJECTING THE RESULTANT REACTION PRODUCT AT A TEMPERATURE WITHIN SAID TEMPERATURE RANGE TO FURTHER CONDENSATION WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SULFUR AND OXYGEN.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |