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US5124367A
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US
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Fire retardant compositions comprising dispersion of fire retardant in isocyanate-reactive compound with fatty acid ester and/or amide as dispersing agent
Assignee: Huntsman International LLC
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Filing: 1991-06-19
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Granted: 1992-06-23
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Expires: 2011-06-19
Abstract
Abstract A fire retardant composition comprising a dispersion of a solid fire retardant additive in a liquid isocyanate-reactive compound having a functionality of from 2 to 8 and an average equivalent weight of from about 31 to about 5000 and, as anti-settling agent, an effective amount of a fatty acid ester and/or amide. The composition is useful for preparing polyurethane foams.
Inventors
- 👤 Martin C. Barker
- 👤 Malcolm Hannaby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K3/00; C08K3/01; C08K3/016; C08K5/0008; C08K5/0066; C08K5/16; C08K5/20; Y; Y10; Y10S; Y10S521/00; Y10S521/906
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
52 words
A fire retardant composition comprising a dispersion of a solid fire retardant additive in a liquid isocyanate-reactive compound having a functionality of from 2 to 8 and an average equivalent weight of from about 31 to about 5000 and, as anti-settling agent, an effective amount of a fatty acid ester and/or amide.
Claim 2
Dependent Claim
52 words
A fire retardant composition comprising a dispersion of a solid fire retardant additive in a liquid isocyanate-reactive compound having a functionality of from 2 to 8 and an average equivalent weight of from about 31 to about 5000 and, as anti-settling agent, an effective amount of a fatty acid ester and/or amide.
Claim 3
Dependent Claim
16 words
A composition according to claim 1 wherein the fire retardant additive comprises melamine and/or ammonium polyphosphate.
Claim 4
Dependent Claim
24 words
A composition according to claim 1 containing from 2 to 70% by weight of solid fire retardant, based on the weight of isocyanate-reactive compound.
Claim 5
Dependent Claim
14 words
A composition according to claim 1 wherein the isocyanate-reactive compound comprises a polyether polyol.
Claim 6
Dependent Claim
25 words
A composition according to claim wherein the anti-settling agent comprises an ester or amide of a fatty acid having from 6 to 35 carbon atoms.
Claim 7
Dependent Claim
15 words
A composition according to claim 1 wherein the anti-settling agent comprises a castor oil derivative.
Claim 8
Dependent Claim
14 words
A composition according to claim 1 wherein the anti-settling agent comprises hydrogenated castor oil.
Claim 9
Dependent Claim
23 words
A composition according to claim 1 containing from 0.05 to 5% by weight of anti-settling agent based on the weight of isocyanate-reactive polymer.
Claim 10
Dependent Claim
23 words
A composition according to claim 1 containing from 0.1 to 1% by weight of anti-settling agent based on the weight of isocyanate-reactive polymer.
Claim 11
Independent Claim
88 words
A method for the manufacture of fire resistant foams which comprises interacting : (i) a fire retardant composition comprising a dispersion of a solid fire retardant additive in a liquid isocyanate-reactive polymer having a functionality of from 2 to 6 and an average equivalent weight of from about 500 to about 5000 and, as anti-settling additive, an effective amount of a fatty acid ester and/or amide; (ii) an organic polyisocyanate; (iii) water, and optionally (iv) one or more of the additives known per se in flexible foam formulations.
Claim 12
Independent Claim
88 words
A method for the manufacture of fire resistant foams which comprises interacting : (i) a fire retardant composition comprising a dispersion of a solid fire retardant additive in a liquid isocyanate-reactive polymer having a functionality of from 2 to 6 and an average equivalent weight of from about 500 to about 5000 and, as anti-settling additive, an effective amount of a fatty acid ester and/or amide; (ii) an organic polyisocyanate; (iii) water, and optionally (iv) one or more of the additives known per se in flexible foam formulations.
References Cited (Backward Citations)
US4293657A
Cited
US4644015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-23 | 1995-12-23 | 1996-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-23 | 1999-12-23 | 2000-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-23 | 2003-12-23 | 2004-06-23 | $7700.00 | Window Closed / Lapsed |