Patent US2156459A successfully refreshed from Google Patents.
Patent US3259593A successfully refreshed from Google Patents.
US3259593A
Expired / Lapsed
US
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Self-extinguishing urethane polymer compositions
Assignee: Dow Chemical Co
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Filing: 1960-05-31
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Granted: 1966-07-05
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Eichhorn Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:55
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0095; C08K; C08K13/00; C08K13/02; C08K3/00; C08K3/01; C08K3/016; C08K3/16; C08K5/00; C08K5/02; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08J2375/00; Y; Y10; Y10S; Y10S521/00; Y10S521/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A COMPOSITION OF MATTER COMPRISING A POLYURETHANE RESIN OBTAINABLE BY REACTING A POLYISOCYANATE AND A COMPOUND CONTAINING ACTIVE HYDROGEN AS DETERMINED BY THE ZEREWITINOFF TEST CONTAINING INTIMATELY ADMIXED THEREWITH, AS THE SOLE SELF-EXTINGUISHING COMPOSITION, A SYNERGISTIC COMPOSITION CONSISTING OF FROM 2 TO 30 PERCENT BASED ON THE WEIGHT OF THE RESIN OF AN ORGANIC BROMINE COMPOUND HAVING A PLURALITY OF BROMINE ATOMS ATTACHED TO THE CARBON ATOMS OF A RADICAL SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXYL AND ALIPHATIC RADICALS, THE BROMINE ATOMS CONSTITUTING AT LEAST 45 PERCENT BY WEIGHT OF THE COMPOUND, AND FROM 1 TO 15 PERCENT BASED ON THE WEIGHT OF THE RESIN OF AN ANTIMONY COMPOUND SELECTED FROM THE GROUP CONSISTING OF SBCI3, SBBR3, SBI3, SBOCI, SB2S3 AND MIXTURES THEREOF.
Claim 2
Dependent Claim
124 words
A COMPOSITION OF MATTER COMPRISING A POLYURETHANE RESIN OBTAINABLE BY REACTING A POLYISOCYANATE AND A COMPOUND CONTAINING ACTIVE HYDROGEN AS DETERMINED BY THE ZEREWITINOFF TEST CONTAINING INTIMATELY ADMIXED THEREWITH, AS THE SOLE SELF-EXTINGUISHING COMPOSITION, A SYNERGISTIC COMPOSITION CONSISTING OF FROM 2 TO 30 PERCENT BASED ON THE WEIGHT OF THE RESIN OF AN ORGANIC BROMINE COMPOUND HAVING A PLURALITY OF BROMINE ATOMS ATTACHED TO THE CARBON ATOMS OF A RADICAL SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXYL AND ALIPHATIC RADICALS, THE BROMINE ATOMS CONSTITUTING AT LEAST 45 PERCENT BY WEIGHT OF THE COMPOUND, AND FROM 1 TO 15 PERCENT BASED ON THE WEIGHT OF THE RESIN OF AN ANTIMONY COMPOUND SELECTED FROM THE GROUP CONSISTING OF SBCI3, SBBR3, SBI3, SBOCI, SB2S3 AND MIXTURES THEREOF.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |