US3907722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant polyurethanes containing chemically combined 3,4-dibromocyclohexane diols
Assignee: Lyondell Chemical Technology LP
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Filing: 1974-05-20
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Granted: 1975-09-23
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Expires: 1994-05-20
Abstract
Abstract Oxyalkylated derivatives of a 3-cyclohexene-1,1-dimethanol and a 3,4-dibromocyclohexane-1,1-dimethanol are provided which are useful polyols in the manufacture of polymeric compositions including polyurethanes. Also provided are polymeric compositions to which flame-retardant properties have been imparted by the incorporation therein of a 3,4-dibromocyclohexane-1,1-dimethanol, an oxyalkylated 3,4-dibromocyclohexane-1,1-dimethanol, or a combination thereof. The dibromo-cycloaliphatic diols of the invention are especially useful in the formation of flameretarded polyurethanes including cellular polyurethanes and, in particular, flexible foams.
Inventors
- 👤 Anthony Joseph Papa
- 👤 William Robert Proops
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:03
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5003; C08G18/5006; C08G18/5012; C08G18/30; C08G18/38; C08G18/3802; C08G18/3804; C08G18/3806; C08G18/381
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
16 words
A FLAME-RETARDED POLYURETHANE HAVING CHEMICALLY COMBINED THEREIN A 3,4-DIBROMOCYCLOHEXANE DIOL HAVING THE FOLLOWING AVERAGE STRUCTURAL FORMULA,
Claim 2
Dependent Claim
16 words
A FLAME-RETARDED POLYURETHANE HAVING CHEMICALLY COMBINED THEREIN A 3,4-DIBROMOCYCLOHEXANE DIOL HAVING THE FOLLOWING AVERAGE STRUCTURAL FORMULA,
Claim 3
Dependent Claim
12 words
A flame-retarded polyurethane as defined in claim 1 wherein a+b is zero.
Claim 4
Dependent Claim
9 words
a flame-retardant comprising a 3,4-dibromocyclohexane polyol having the formula,
Claim 5
Dependent Claim
9 words
a flame-retardant comprising a 3,4-dibromocyclohexane polyol having the formula,
Claim 6
Dependent Claim
7 words
a polyol different from polyol (2), and
Claim 7
Dependent Claim
7 words
a polyol different from polyol (2), and
Claim 8
Dependent Claim
19 words
A flame-retarded polyurethane as defined in claim 1 wherein a+b is a positive number of at least about 0.5.
Claim 9
Dependent Claim
20 words
A flame-retarded polyurethane as defined in claim 3 wherein R is a bivalent propylene radical and each Y is hydrogen.
Claim 10
Dependent Claim
40 words
a blowing agent; said flame-retardant being present in an amount sufficient to provide a polyurethane product having a bromine content of between about 0.3 and about 8 weight per cent, based on the combined weight of (1), (2) and (3).
Claim 11
Dependent Claim
40 words
a blowing agent; said flame-retardant being present in an amount sufficient to provide a polyurethane product having a bromine content of between about 0.3 and about 8 weight per cent, based on the combined weight of (1), (2) and (3).
Claim 12
Dependent Claim
20 words
A flame-retarded polyurethane as defined in claim 3 wherein R is a bivalent ethylene radical and each Y is hydrogen.
Claim 13
Dependent Claim
8 words
A flame-retarded polyurethane having 3,4-dibromocyclohexane-1,1-dimethanol chemically combined therein.
Claim 14
Dependent Claim
8 words
A flame-retarded polyurethane having 3,4-dibromocyclohexane-1,1-dimethanol chemically combined therein.
Claim 15
Dependent Claim
14 words
A flame-retarded polyurethane having chemically combined therein a 3,4-dibromocyclohexane diol having the average formula,
Claim 16
Dependent Claim
14 words
A flame-retarded polyurethane having chemically combined therein a 3,4-dibromocyclohexane diol having the average formula,
Claim 17
Dependent Claim
27 words
A flame-retarded polyurethane as defined in claim 7 wherein the average value of the sum p+q+m+n is at least about 0.5 and no more than about 10.
Claim 18
Independent Claim
16 words
A method for producing cellular flame-retarded polyurethanes which comprises reacting and foaming a reaction mixture containing:
Claim 19
Independent Claim
16 words
A method for producing cellular flame-retarded polyurethanes which comprises reacting and foaming a reaction mixture containing:
Claim 20
Dependent Claim
21 words
A process as defined in claim 9 in which the reaction mixture contains an amine catalyst for the polyurethane forming reaction.
Claim 21
Dependent Claim
14 words
A process as defined in claim 9 in which the blowing agent is water.
Claim 22
Dependent Claim
15 words
A process as defined in claim 9 in which component (3) is a polyether polyol.
Claim 23
Dependent Claim
15 words
A process as defined in claim 9 in which component (3) is a polyester polyol.
Claim 24
Dependent Claim
15 words
A process as defined in claim 9 in which component (3) is a lactone polyol.
Claim 25
Dependent Claim
15 words
A process as defined in claim 9 in which component (3) is a phosphorus-containing polyol.
Claim 26
Dependent Claim
14 words
A process as defined in claim 9 in which said 3,4-dibromocyclohexane polyol is 3,4-dibromocyclohexAne-1,1-dimethanol.
Claim 27
Dependent Claim
15 words
A process as defined in claim 9 in which said 3,4-dibromocyclohexane polyol has the formula,
Claim 28
Dependent Claim
28 words
A process as defined in claim 17 in which each of R2, R3, R4, R5 and R6 of said formula is hydrogen and R* has three carbon atoms.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |