US4564468A
Expired / Lapsed
US
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Flame retardant for polyurethanes
Assignee: Albemarle Corp
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Filing: 1984-12-12
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Granted: 1986-01-14
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Expires: 2004-12-12
Abstract
Abstract A reactive fire retardant mixture useful in the preparation of polyurethane foams. The mixture contains a halogenated imide-containing polyol having the formula: ##STR1## and the corresponding ether having the formula: ##STR2## wherein R is a hydrocarbon group having the valance n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6. They are prepared by reacting an alcohol (e.g. isopropyl alcohol), a halogenated dicarboxylic anhydride (e.g. tetrabromophthalic anhydride) and an aminopolyol (e.g. 2-amino-2-ethyl-1,3-propanediol).
Inventors
- 👤 Henry J. Barda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:27
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3842; C08G18/3844; C08G18/3846; Y; Y10; Y10S; Y10S260/00; Y10S260/24; Y10S428/00; Y10S428/92; Y10S428/921
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
A reactive flame retardant mixture comprising about 1-99 weight percent of a halogenated imide-containing polyol having the formula: ##STR21## and about 99-1 weight percent of the corresponding ether having the formula: ##STR22## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6.
Claim 2
Dependent Claim
98 words
A reactive flame retardant mixture comprising about 1-99 weight percent of a halogenated imide-containing polyol having the formula: ##STR21## and about 99-1 weight percent of the corresponding ether having the formula: ##STR22## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6.
Claim 3
Dependent Claim
25 words
A reactive flame retardant mixture, as recited in claim 1, wherein R' is an aliphatic hydrocarbon group containing 5 carbon atoms and p is 2.
Claim 4
Dependent Claim
21 words
A reactive flame retardant mixture, as recited in claim 2, wherein R is benzene, X is bromine and n is 4.
Claim 5
Dependent Claim
27 words
A reactive flame retardant mixture, as recited in claim 3, wherein the halogenated imide-containing polyol has the formula: ##STR23## and the corresponding ether has the formula: ##STR24##
Claim 6
Dependent Claim
21 words
A reactive flame retardant mixture, as recited in claim 2, wherein R is 5-norbornene, X is chlorine and n is 6.
Claim 7
Dependent Claim
27 words
A reactive flame retardant mixture, as recited in claim 5, wherein the halogenated imide-containing polyol has the formula: ##STR25## and the corresponding ether has the formula: ##STR26##
Claim 8
Dependent Claim
132 words
A process for preparing a reactive flame retardant mixture, said process comprising reacting at a temperature of about 50°-350° C. (a) about one mole of a halogenated dicarboxylic anhydride compound having the structure: ##STR27## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, X is selected from the group consisting of bromine and chlorine and n is an integer from 1 to 6, (b) about 0.8-50 moles of an alcohol containing 1-10 carbon atoms and (c) about 0.5-2.5 moles of an aminopolyol having the structure: H.sub.2 N--R'--OH).sub.p wherein R' is an aliphatic hydrocarbon group containing 2-6 carbon atoms having the valence p+1 and p is an integer from 2-6.
Claim 9
Dependent Claim
132 words
A process for preparing a reactive flame retardant mixture, said process comprising reacting at a temperature of about 50°-350° C. (a) about one mole of a halogenated dicarboxylic anhydride compound having the structure: ##STR27## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, X is selected from the group consisting of bromine and chlorine and n is an integer from 1 to 6, (b) about 0.8-50 moles of an alcohol containing 1-10 carbon atoms and (c) about 0.5-2.5 moles of an aminopolyol having the structure: H.sub.2 N--R'--OH).sub.p wherein R' is an aliphatic hydrocarbon group containing 2-6 carbon atoms having the valence p+1 and p is an integer from 2-6.
Claim 10
Dependent Claim
32 words
A process for preparing a reactive flame retardant mixture, as recited in claim 7, wherein said alcohol is isopropyl alcohol, said halogenated dicarboxylic anhydride is tetrabromophthalic anhydride and said aminopolyol is 2-amino-2-ethyl-1,3-propanediol.
Claim 11
Dependent Claim
142 words
A process for preparing a reactive flame retardant mixture, said process comprising reacting at a temperature of about 50°-350° C. (a) about one mole of a halogenated dicarboxylic anhydride compound having the structure: ##STR28## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, X is selected from the group consisting of bromine and chlorine and n is an integer from 1 to 6 and (b) about 0.8-50 moles of an alcohol containing 1-10 carbon atoms to form an acid-ester intermediate and reacting said intermediate with (c) about 0.5-2.5 moles of an aminopolyol having the structure: H.sub.2 N--R'--OH).sub.p wherein R' is an aliphatic hydrocarbon group containing 2-6 carbon atoms having the valence p+1 and p is an integer from 2-6.
Claim 12
Dependent Claim
142 words
A process for preparing a reactive flame retardant mixture, said process comprising reacting at a temperature of about 50°-350° C. (a) about one mole of a halogenated dicarboxylic anhydride compound having the structure: ##STR28## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, X is selected from the group consisting of bromine and chlorine and n is an integer from 1 to 6 and (b) about 0.8-50 moles of an alcohol containing 1-10 carbon atoms to form an acid-ester intermediate and reacting said intermediate with (c) about 0.5-2.5 moles of an aminopolyol having the structure: H.sub.2 N--R'--OH).sub.p wherein R' is an aliphatic hydrocarbon group containing 2-6 carbon atoms having the valence p+1 and p is an integer from 2-6.
Claim 13
Dependent Claim
32 words
A process for preparing a reactive flame retardant mixture, as recited in claim 9, wherein said alcohol is isopropyl alcohol, said halogenated dicarboxylic anhydride is tetrabromophthalic anhydride and said aminopolyol is 2-amino-2-ethyl-1,3-propanediol.
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