US3609107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-extinguishing polyurethane foams
Assignee: GE Chemicals Inc
•
Filing: 1969-05-23
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Granted: 1971-09-28
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Expires: 1989-05-23
Abstract
Abstract A polyurethane foam composition containing dialkyl hydroxyalkanephosphonates incorporated therein. The phosphonate compounds are utilized as integral parts of the polyurethane polymeric chain and are chemically combined therewith to lend fire-retardant characteristics to the polyurethane composition.
Inventors
- 👤 Nicodemus E Boyer
- 👤 Marvin P Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:17
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0019; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/288; C08G18/30; C08G18/38; C08G18/3878; C08G18/388; C08G18/67; C08G18/671; C08K; C08K5/00; C08K5/02; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
26 words
The fire-retardant polyurethane composition of claim 1 wherein the fire-retardant compound is 1-dimethoxyphosphono-1-cyclohexanol and wherein the reaction is conducted in the presence of a blowing agent.
Claim 2
Dependent Claim
33 words
The polyurethane composition of claim 1 wherein fire retardance is improved by adding a halogen-substituted hydrocarbon compound to the reactants and wherein the reaction is conducted in the presence of a blowing agent.
Claim 3
Dependent Claim
14 words
The polyurethane foam composition of claim 3 wherein the halogenated compound is 6-(1'',2'',3'',4'',7'',7''-hexachloro-2''-norbornen-5''-yl)-1,2,3,4,9,9-hexachloro -1,4,4a,5,6,7,8,8a-octahydro-1,4-methanonaphthalene.
Claim 4
Dependent Claim
39 words
The polyurethane foam composition of claim 3 wherein fire retardance is improved by adding to the reactants a halogenated monohydroxy compound selected from the group consisting of halogenated aliphatic or halogenated cycloaliphatic monohydroxy compounds and halogenated aromatic monohydroxy compounds.
Claim 5
Dependent Claim
12 words
The polyurethane of claim 5 wherein the halogenated monohydroxy compound is 1,1,1-trichloro-2-methyl-2-propanol.
Claim 6
Dependent Claim
13 words
The polyurethane foam composition of claim 5 wherein the monohydroxy compound is pentachlorophenol.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |