US2691567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric organic phosphorus compounds for increasing flame resistance of textiles and method of using same
Assignee: EIDP Inc
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Filing: 1951-10-23
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Granted: 1954-10-12
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Expires: 1971-10-23
Abstract
No abstract record available.
Inventors
- 👤 Donovan E Kvalnes
- 👤 Neal O Brace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:10
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; D06M15/579; C; C08; C08F; C08F8/00; C08F8/40; D06M13/00; D06M13/322; D06M13/395; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
168 words
A PHOSPHORUS-CONTAINING DERIVATIVE OF A A CERAMIC INSULATING MATERIAL CONSISTING ESSENTIALLY OF A SINTERED MIXTURE OF 3 TO 50% OF AT LEAST HYDROXYL-CONTAINING POLYMER SELECTED FROM THE CLASS CONSISTING OF CELLULOSE, STARCH POLYVINYL ONE TITANATE SELECTED FROM THE GROUP CONSISTING OF ZNO. TIO2, 2ZNO.TIO2, CDO.TIO2 AND 2CDO.TIO2, ALCOHOL AND POLYALLYL ALCOHOL, IN WHICH DERIVATIVE THE RESIDUES OF DIMERS OF AROMATIC DIISOCYAAND THE REMAINDER BEING AT LEAST ONE TITANATE SELECTED FROM THE GROUP CONSISTING OF 2AO.TIO2, NATES, THE SAID RESIDUES BEING THE PORTIONS OF THE DIMERS REMAINING AFTER THE REMOVAL OF FREE ISO3CAO.2TIO2, 2SRO.TIO2 AND 3SRO.2TIO2. CYANATE GROUPS, ARE ATTACHED TO THE POLYMER BY MEANS OF URETHANE LINKAGES FORMED FROM A FREE ISOCYANATE GROUP OF THE DIMER AND A HYDROXYL GROUP OF THE POLYMER, SAID DIMER RESIDUES BEING ATTACHED IN FROM 5 TO 95% OF THE POSITIONS OCCUPIED BY HYDROXYL GROUPS IN THE PARENT POLYMER, AND IN WHICH FROM 5 TO 95% OF THE HYDROXYL GROUPS IN THE PRESENT POLYMER ARE REPLACED BY A PHOSPHOROUS-CONTAINING GROUP HAVING THE FORMULA
Claim 2
Dependent Claim
168 words
A PHOSPHORUS-CONTAINING DERIVATIVE OF A A CERAMIC INSULATING MATERIAL CONSISTING ESSENTIALLY OF A SINTERED MIXTURE OF 3 TO 50% OF AT LEAST HYDROXYL-CONTAINING POLYMER SELECTED FROM THE CLASS CONSISTING OF CELLULOSE, STARCH POLYVINYL ONE TITANATE SELECTED FROM THE GROUP CONSISTING OF ZNO. TIO2, 2ZNO.TIO2, CDO.TIO2 AND 2CDO.TIO2, ALCOHOL AND POLYALLYL ALCOHOL, IN WHICH DERIVATIVE THE RESIDUES OF DIMERS OF AROMATIC DIISOCYAAND THE REMAINDER BEING AT LEAST ONE TITANATE SELECTED FROM THE GROUP CONSISTING OF 2AO.TIO2, NATES, THE SAID RESIDUES BEING THE PORTIONS OF THE DIMERS REMAINING AFTER THE REMOVAL OF FREE ISO3CAO.2TIO2, 2SRO.TIO2 AND 3SRO.2TIO2. CYANATE GROUPS, ARE ATTACHED TO THE POLYMER BY MEANS OF URETHANE LINKAGES FORMED FROM A FREE ISOCYANATE GROUP OF THE DIMER AND A HYDROXYL GROUP OF THE POLYMER, SAID DIMER RESIDUES BEING ATTACHED IN FROM 5 TO 95% OF THE POSITIONS OCCUPIED BY HYDROXYL GROUPS IN THE PARENT POLYMER, AND IN WHICH FROM 5 TO 95% OF THE HYDROXYL GROUPS IN THE PRESENT POLYMER ARE REPLACED BY A PHOSPHOROUS-CONTAINING GROUP HAVING THE FORMULA
Claim 3
Independent Claim
146 words
A METHOD OF INCREASING THE FRAME RESISTANCE OF TEXTILE MATERIALS IN WHICH FIBER MOLECULES CONTAIN ACTIVE HYDROGEN ATOMS WHICH COMPRISES APPLYING TO THE SURFACE OF THE SAID TEXTILE A PHOSPHORUS-CONTAINING DERIVATIVE OF A HYDROXYLCONTAINING POLYMER SELECTED FROM THE CLASS CONSISTING OF CELLULOSE, STARCH, POLYVINYL ALCOHOL AND POLYALLYL ALCOHOL, IN WHICH DERIVATIVE THE RESIDUES OF DIMERS OF AROMATIC DIISOCYANATES, THE SAID RESIDUES BEING THE PORTIONS OF THE DIMERS REMAINING AFTER THE REMOVAL OF FREE ISOCYANATE GROUPS, ARE ATTACHED TO THE POLYMER BY MEANS OF URETHANE LINKAGES FORMED FROM A FREE ISOCYANATE GROUP OF THE DIMER AND A HYDROXYL GROUP OF THE POLYMER, SAID DIMER RESIDUES BEING ATTACHED IN FROM 5 TO 95% OF THE POSITIONS OCCUPIED BY HYDROXYL GROUPS IN THE PARENT POLYMER, AND IN WHICH FROM 5 TO 95% OF THE HYDROXYL GROUPS IN THE PARENT POLYMER ARE REPLACED BY A PHOSPHORUS-CONTAINING GROUP HAVING THE FORMULA
Claim 4
Independent Claim
146 words
A METHOD OF INCREASING THE FRAME RESISTANCE OF TEXTILE MATERIALS IN WHICH FIBER MOLECULES CONTAIN ACTIVE HYDROGEN ATOMS WHICH COMPRISES APPLYING TO THE SURFACE OF THE SAID TEXTILE A PHOSPHORUS-CONTAINING DERIVATIVE OF A HYDROXYLCONTAINING POLYMER SELECTED FROM THE CLASS CONSISTING OF CELLULOSE, STARCH, POLYVINYL ALCOHOL AND POLYALLYL ALCOHOL, IN WHICH DERIVATIVE THE RESIDUES OF DIMERS OF AROMATIC DIISOCYANATES, THE SAID RESIDUES BEING THE PORTIONS OF THE DIMERS REMAINING AFTER THE REMOVAL OF FREE ISOCYANATE GROUPS, ARE ATTACHED TO THE POLYMER BY MEANS OF URETHANE LINKAGES FORMED FROM A FREE ISOCYANATE GROUP OF THE DIMER AND A HYDROXYL GROUP OF THE POLYMER, SAID DIMER RESIDUES BEING ATTACHED IN FROM 5 TO 95% OF THE POSITIONS OCCUPIED BY HYDROXYL GROUPS IN THE PARENT POLYMER, AND IN WHICH FROM 5 TO 95% OF THE HYDROXYL GROUPS IN THE PARENT POLYMER ARE REPLACED BY A PHOSPHORUS-CONTAINING GROUP HAVING THE FORMULA
References Cited (Backward Citations)
US2277083A
Cited
US2495108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |