US4145318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excellent flame-and smoke-retardant non-shrinkable polyurethane foam
Assignee: Bridgestone Corp
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Filing: 1977-08-01
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Granted: 1979-03-20
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Expires: 1997-08-01
Abstract
Abstract An excellent flame- and smoke-retardant non-shrinkable polyurethane foam is prepared by reacting a polyhydroxyl compound consisting of (A) a polyol having at least two hydroxyl groups and having a molecular weight of from 1,000 to 10,000, and (B) an aliphatic amino alcohol, the amount of which is 2.1 to 8.0 equivalents per hydroxyl group of the polyol (A) with an organic polyisocyanate in the presence of water and/or other blowing agents, catalysts and surfactants. The polyurethane foam thus obtained has high resilience together with an improved S.A.G. factor.
Inventors
- 👤 Takashi Ohashi
- 👤 Toru Okuyama
- 👤 Katsuhiko Arai
- 👤 Yoshiko Taniguchi
- 👤 Masumi Saito
- 👤 Ryozo Sakata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:48
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6603; C08G18/6614; C08G18/6622; C08G2110/00; C08G2110/0008; C08G2110/0016; C08G2110/0041; C08G2110/005; C08G2110/0058; Y; Y10; Y10S; Y10S521/00; Y10S521/903
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
95 words
An excellent flame- and smoke-retardant non-shrinkable polyurethane foam prepared by reacting an organic polyisocyanate with a polyhydroxyl compound consisting of (A) a polyol having at least two hydroxyl groups and having a molecular weight from 1,000 to 10,000 and (B) at least one aliphatic amino alcohol from the group consisting of diethanolamine, diisopropanolamine, triethanolamine, hydroxyethylated ethylenediamine, hydroxypropylated diethylenetriamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-ethyl-1,3-propanediol and tris(hydroxymethyl) aminomethane, in the presence of water and/or other blowing agents, catalysts and surfactants, wherein the amount of the aliphatic amino alcohol is 2.1 to 8.0 equivalents per hydroxyl group of the polyol (A).
Claim 2
Dependent Claim
95 words
An excellent flame- and smoke-retardant non-shrinkable polyurethane foam prepared by reacting an organic polyisocyanate with a polyhydroxyl compound consisting of (A) a polyol having at least two hydroxyl groups and having a molecular weight from 1,000 to 10,000 and (B) at least one aliphatic amino alcohol from the group consisting of diethanolamine, diisopropanolamine, triethanolamine, hydroxyethylated ethylenediamine, hydroxypropylated diethylenetriamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-ethyl-1,3-propanediol and tris(hydroxymethyl) aminomethane, in the presence of water and/or other blowing agents, catalysts and surfactants, wherein the amount of the aliphatic amino alcohol is 2.1 to 8.0 equivalents per hydroxyl group of the polyol (A).
Claim 3
Dependent Claim
29 words
The polyurethane foam according to claim 1, in which the polyol (A) has a molecular weight of 3,000 to 6,000, and a hydroxyl value of 20 to 170 mgKOH/g.
Claim 4
Dependent Claim
32 words
The polyurethane foam according to claim 1, in which the polyol (A) is at least one selected from the group consisting of a polyether polyol, a polyester polyol and a polyetherester polyol.
Claim 5
Dependent Claim
34 words
The polyurethane foam according to claim 1, in which the polyol (A) is a polyether polyol obtained by the addition polymerization of an initiator containing active hydrogen atoms to one or more alkylene oxides.
Claim 6
Dependent Claim
15 words
The polyurethane foam according to claim 4, in which the polyether polyol is poly(oxypropylene) triol.
Claim 7
Dependent Claim
15 words
The polyurethane foam according to claim 4, in which the polyether polyol is poly(oxyethylene-oxypropylene) triol.
Claim 8
Dependent Claim
28 words
The polyurethane foam according to claim 1, in which the aliphatic amino alcohol is at least one selected from the group consisting of diethanolamine, triethanolamine, diisopropanolamine and 2-amino-2-ethyl-1,3-propanediol.
Claim 9
Dependent Claim
29 words
The polyurethane foam according to claim 1, in which the amount of the aliphatic amino alcohol (B) is 3.0 to 7.0 equivalents per hydroxyl group of the polyol (A).
Claim 10
Dependent Claim
18 words
The polyurethane foam according to claim 1, in which the organic polyisocyanate is tolylene diisocyanate and/or diphenylmethane diisocyanate.
Claim 11
Dependent Claim
29 words
The polyurethane foam according to claim 1, wherein said aliphatic amino alcohol has a molecular weight of 80 to 500 and a hydroxy value of 160 to 600 mgKOH/g.
Claim 12
Dependent Claim
17 words
The polyurethane foam according to claim 1, formed by reacting a mixture consisting essentially the recited components.
Claim 13
Dependent Claim
39 words
The polyurethane foam according to claim 11, wherein said polyol is a triol, said aliphatic amino alcohol is diethanolamine, said blowing agent is water, said catalyst comprise amine catalysts and stannous octoate and said surfactant is a silicone surfactant.
Claim 14
Dependent Claim
102 words
A process for producing an excellent flame- and smoke-retardant non-shrinkable polyurethane foam, which comprises reacting an organic polyisocyanate wiht a polyhydroxyl compound consisting of (A) a polyol having at least two hydroxyl groups and having a molecular weight of from 1,000 to 10,000 and (B) at least one aliphatic amino alcohol selected from the group consisting of diethanolamine, diisopropanolamine, triethanolamine, hydroxyethylated ethylenediamine, hydroxypropylated diethylenetriamine, 2-amino-2-methyl-1,3-propanediol, 2-amino -2-ethyl-1,3-propanediol and tris(hydroxymethyl)aminomethane in the presence of water and/or other blowing agents, catalysts and surfactants, wherein the amount of the aliphatic amino alcohol (B) is 2.1 to 8.0 equivalents per hydroxyl group of the polyol (A).
Claim 15
Dependent Claim
102 words
A process for producing an excellent flame- and smoke-retardant non-shrinkable polyurethane foam, which comprises reacting an organic polyisocyanate wiht a polyhydroxyl compound consisting of (A) a polyol having at least two hydroxyl groups and having a molecular weight of from 1,000 to 10,000 and (B) at least one aliphatic amino alcohol selected from the group consisting of diethanolamine, diisopropanolamine, triethanolamine, hydroxyethylated ethylenediamine, hydroxypropylated diethylenetriamine, 2-amino-2-methyl-1,3-propanediol, 2-amino -2-ethyl-1,3-propanediol and tris(hydroxymethyl)aminomethane in the presence of water and/or other blowing agents, catalysts and surfactants, wherein the amount of the aliphatic amino alcohol (B) is 2.1 to 8.0 equivalents per hydroxyl group of the polyol (A).
Claim 16
Dependent Claim
16 words
The process of claim 13 which comprises reacting a mixture consisting essentially of the recited components.
Claim 17
Dependent Claim
28 words
The process according to claim 13 in which the amount of the aliphatic amino alcohol (B) is 3.0 to 7.0 equivalents per hydroxyl group of the polyol (A).
Claim 18
Dependent Claim
37 words
The process of claim 14, wherein said polyol is a triol, said aliphatic amino alcohol is diethanolamine, said blowing agent is water, said catalyst comprise amine catalysts an stannous octoate and said surfactant is a silicone surfactant.
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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |