US2588362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant polyethylene and lignin containing composition
Assignee: Diamond Shamrock Corp
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Filing: 1949-08-17
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Granted: 1952-03-11
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Expires: 1969-08-17
Abstract
No abstract record available.
Inventors
- 👤 Robert C Danison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:04
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08K; C08K3/00; C08K3/01; C08K3/016; C08K5/00; C08K5/02; C08L97/00; C08L97/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE METHOD OF OBTAINING A FLAME-RETARDANT AND DRIP-RESISTANT POLYETHYLENE COMPOSITION, WHICH INCLUDES THE STEPS OF COMBINING A HIGHLY CHLORINATED ORGANIC MATERIAL CONTAINING 50% TO 80% OF CHLORINE, AN INORGANIC FLAME-RETARDANT SUBSTANCE CHOSEN FROM THE GROUP OF BISMUTH OXIDE, ARSENIC OXIDE, ANTIMONY OXIDE, BISMUTH SULFIDE, ARSENIC SULFIDE, AND ANTIMONY SULFIDE, AND A LIGNIN-CONTAINING MATERIAL, TO FORM A MIXTURE IN WHICH EACH OF SAID THREE INGREDIENTS IS PRESENT IN AN AMOUNT BETWEEN 10% AND 50% OF THE MIXTURE, AND COMBINING SAID MIXTURE WITH A POLYETHYLENE IN PROPORTION TO YIELD A COMBINATION IN WHICH 20% TO 50% CONSISTS OF SAID MIXTURE.
Claim 2
Independent Claim
98 words
THE METHOD OF OBTAINING A FLAME-RETARDANT AND DRIP-RESISTANT POLYETHYLENE COMPOSITION, WHICH INCLUDES THE STEPS OF COMBINING A HIGHLY CHLORINATED ORGANIC MATERIAL CONTAINING 50% TO 80% OF CHLORINE, AN INORGANIC FLAME-RETARDANT SUBSTANCE CHOSEN FROM THE GROUP OF BISMUTH OXIDE, ARSENIC OXIDE, ANTIMONY OXIDE, BISMUTH SULFIDE, ARSENIC SULFIDE, AND ANTIMONY SULFIDE, AND A LIGNIN-CONTAINING MATERIAL, TO FORM A MIXTURE IN WHICH EACH OF SAID THREE INGREDIENTS IS PRESENT IN AN AMOUNT BETWEEN 10% AND 50% OF THE MIXTURE, AND COMBINING SAID MIXTURE WITH A POLYETHYLENE IN PROPORTION TO YIELD A COMBINATION IN WHICH 20% TO 50% CONSISTS OF SAID MIXTURE.
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) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |