US4518778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer polyols from alkylene oxide adducts of alkanolamines
Assignee: Dow Chemical Co
•
Filing: 1983-07-14
•
Granted: 1985-05-21
•
Expires: 2003-07-14
Abstract
Abstract A polymer polyol made by the reaction of an alkylene oxide adduct of a hydroxyl-containing amine, a polyether polyol of about 3000 to 8000 molecular weight and an organic polyisocyanate is disclosed. This polymer polyol may be used in the manufacture of flexible polyurethane foams. The polymer polyols are more stable than those made by other procedures.
Inventors
- 👤 Michael Cuscurida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:03
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4804; C08G18/482; C08G18/409; C08G18/4895; C08G18/50; C08G18/5021; C08G18/5036; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6681; C08G18/6688; C08G2110/00; C08G2110/0008; C08G2110/0041; C08G2110/005; C08G2110/0083
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
71 words
A polymer polyol made by the reaction of an alkylene oxide adduct of a hydroxyl-containing amine, a polyether polyol of about 3000 to 8000 molecular weight and an organic polyisocyanate wherein the ratio of equivalents of alkylene oxide adduct of hydroxyl-containing amine to equivalents of polyisocyanate ranges from about 1 to 4 and wherein the combined weight of adduct and polyisocyanate is about 5 to 30 wt.% of the polyether polyol.
Claim 2
Dependent Claim
71 words
A polymer polyol made by the reaction of an alkylene oxide adduct of a hydroxyl-containing amine, a polyether polyol of about 3000 to 8000 molecular weight and an organic polyisocyanate wherein the ratio of equivalents of alkylene oxide adduct of hydroxyl-containing amine to equivalents of polyisocyanate ranges from about 1 to 4 and wherein the combined weight of adduct and polyisocyanate is about 5 to 30 wt.% of the polyether polyol.
Claim 3
Dependent Claim
16 words
The polymer polyol of claim 1 in which the polyether polyol is a secondary hydroxyl-terminated polyol.
Claim 4
Dependent Claim
32 words
The polymer polyol of claim 1 in which the alkylene oxide used to make the adduct is selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide and mixtures thereof.
Claim 5
Dependent Claim
25 words
The polymer polyol of claim 1 in which the hydroxyl-containing amine is selected from the group consisting of trifunctional monoamines, difunctionalmonoamines, aromatic amines and diamines.
Claim 6
Dependent Claim
28 words
The polymer polyol of claim 4 in which the hydroxyl-containing amine is selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, triisopropylamine, 2-(2-aminoethoxyethanol), ethylenediamine, aniline, toluenediamine and hydroxyethylpiperazine.
Claim 7
Dependent Claim
23 words
The polymer polyol of claim 1 in which the organic polyisocyanate is selected from the group consisting of aromatic diisocyanates and aliphatic diisocyanates.
Claim 8
Dependent Claim
27 words
The polymer polyol of claim 6 in which the organic polyisocyanate is selected from the group consisting of toluene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate and methylene bis-cyclohexylisocyanate.
Claim 9
Dependent Claim
23 words
The polymer polyol of claim 1 in which the polyether polyol is a mixed alkylene oxide and diepoxide adduct of a polyol initiator.
Claim 10
Independent Claim
76 words
A method for the production of a polymer polyol consisting essentially of reacting an alkylene oxide adduct of a hydroxyl-containing amine, a polyether polyol of about 3000 to 8000 molecular weight and an organic polyisocyanate wherein the ratio of equivalents of alkylene oxide adduct of hydroxyl-containing amine to equivalents of polyisocyanate ranges from about 1 to 4 and wherein the combined weight of adduct and polyisocyanate is about 5 to 30 wt.% of the polyether polyol.
Claim 11
Independent Claim
76 words
A method for the production of a polymer polyol consisting essentially of reacting an alkylene oxide adduct of a hydroxyl-containing amine, a polyether polyol of about 3000 to 8000 molecular weight and an organic polyisocyanate wherein the ratio of equivalents of alkylene oxide adduct of hydroxyl-containing amine to equivalents of polyisocyanate ranges from about 1 to 4 and wherein the combined weight of adduct and polyisocyanate is about 5 to 30 wt.% of the polyether polyol.
Claim 12
Dependent Claim
15 words
The method of claim 9 in which the polyether polyol is a secondary hydroxyl-terminated polyol.
Claim 13
Dependent Claim
31 words
The method of claim 9 in which the alkylene oxide used to make the adduct is selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide and mixtures thereof.
Claim 14
Dependent Claim
24 words
The method of claim 9 in which the hydroxyl-containing amine is selected from the group consisting of trifunctional monoamines, difunctionalmonoamines, aromatic amines and diamines.
Claim 15
Dependent Claim
27 words
The method of claim 12 in which the hydroxyl-containing amine is selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, triisopropylamine, 2-(2-aminoethoxyethanol), ethylenediamine, aniline, toluenediamine and hydroxyethylpiperazine.
Claim 16
Dependent Claim
22 words
The method of claim 9 in which the organic polyisocyanate is selected from the group consisting of aromatic diisocyanates and aliphatic diisocyanates.
Claim 17
Dependent Claim
26 words
The method of claim 14 in which the organic polyisocyanate is selected from the group consisting of toluene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate and methylene bis-cyclohexylisocyanate.
Claim 18
Dependent Claim
22 words
The method of claim 9 in which the polyether polyol is a mixed alkylene oxide and diepoxide adduct of a polyol initiator.
References Cited (Backward Citations)
US3294751A
Cited
US3325421A
Cited
US4089835A
Cited
US4296213A
Cited
US4293470A
Cited
US4309532A
Cited
US4374209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-20 | 1988-11-19 | 1989-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-20 | 1992-11-19 | 1993-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-20 | 1996-11-19 | 1997-05-21 | $7700.00 | Window Closed / Lapsed |