US3872053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retardant polyurethane compositions
Assignee: Borg Warner Corp
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Filing: 1973-12-12
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Granted: 1975-03-18
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Expires: 1993-12-12
Abstract
Abstract Polyurethane resin compositions contain as flame-retardant either an aryl haloalkyl phosphate or an aryloxyalkyl haloalkyl phosphate. Illustrative of these flame-retardant phosphate esters is diphenyl (1,3-dichloropropyl) phosphate.
Inventors
- 👤 Joseph Fath
- 👤 Roy T Gottesman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:27
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0038; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
41 words
A FLAME-RETARDANT POLYURETHANE RESIN COMPOSITION THAT COMPRISES (A) THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE AND A POLYOL HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 500 AND (B) A FLAME-RETARDING AMOUNT OF A PHOSPHATE ESTER THAT HAS THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
41 words
A FLAME-RETARDANT POLYURETHANE RESIN COMPOSITION THAT COMPRISES (A) THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE AND A POLYOL HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 500 AND (B) A FLAME-RETARDING AMOUNT OF A PHOSPHATE ESTER THAT HAS THE STRUCTURAL FORMULA
Claim 3
Dependent Claim
18 words
A flame-retardant polyurethane resin composition according to claim 1 wherein the phosphate ester is a phenyl dihalopropyl phosphate.
Claim 4
Dependent Claim
18 words
A flame-retardant polyurethane resin composition according to claim 2 wherein the phosphate ester is a phenyl (1,3-dichloropropyl) phosphate.
Claim 5
Dependent Claim
19 words
A flame -retardant polyurethane resin composition according to claim 2 wherein the phosphate ester is a phenyl (2,3-dibromopropyl) phosphate.
Claim 6
Dependent Claim
19 words
A flame -retardant polyurethane resin composition according to claim 1 wherein the phosphate ester is a phenoxyethyl dihalopropyl phosphate.
Claim 7
Dependent Claim
18 words
A flame-retardant polyurethane resin composition according to claim 5 wherein the phosphate ester is a phenoxyethyl (1,3-dichloropropyl) phosphate.
Claim 8
Dependent Claim
18 words
A flame-retardant polyurethane resin composition according to claim 5 wherein the phosphate ester is a phenoxyethyl (2,3-dibromopropyl) phosphate.
Claim 9
Dependent Claim
27 words
A flame-retardant polyurethane resin composition according to claim 1 that contains about 25 percent by weight of said phosphate ester, based on the weight of the polyol.
Claim 10
Dependent Claim
17 words
A flame-retardant polyurethane resin composition according to claim 1 wherein the phosphate ester is diphenyl (1,3-dichloropropyl) phosphate.
Claim 11
Dependent Claim
49 words
A flame-retardant polyurethane resin composition according to claim 1 that contains the amount of said phosphate ester that will provide at least 1 percent by weight of phosphorus when X and Y represent chloroalkyl or at least 0.5 percent by weight of phosphorus when X and Y represent bromoalkyl.
Claim 12
Dependent Claim
51 words
A process for the production of a flame-retardant polyurethane resin composition that comprises incorporating in a polyurethane resin that is the product of the reaction of an organic polyisocyanate with poyol having a molecular weight of at least 500 a flame-retarding amount of a phosphate ester that has the structural fomula
Claim 13
Dependent Claim
51 words
A process for the production of a flame-retardant polyurethane resin composition that comprises incorporating in a polyurethane resin that is the product of the reaction of an organic polyisocyanate with poyol having a molecular weight of at least 500 a flame-retarding amount of a phosphate ester that has the structural fomula
Claim 14
Dependent Claim
14 words
The process of claim 11 wherein the phosphate ester is a phenyl dihalopropyl phosphate.
Claim 15
Dependent Claim
14 words
The process of claim 11 wherein the phosphate ester is a phenoxyethyl dihalopropyl phosphate.
Claim 16
Dependent Claim
13 words
The process of claim 11 wherein the phosphate ester is diphenyl (1,3-dichloropropyl) phosphate.
References Cited (Backward Citations)
US3706821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |