US4309532A
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Modification of amino polyols with epoxy resins
Assignee: Dow Chemical Co
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Filing: 1980-09-02
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Granted: 1982-01-05
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Expires: 2000-09-02
Abstract
Abstract The modification of rigid amino polyols by their reaction with epoxy resin and alkylene oxides is described. The modified polyols produce rigid polyurethane foams that have higher heat distortion temperatures and better low temperature properties than foams made with nonmodified polyols. The viscosities of the epoxy resin-modified amino polyols are not significantly different than those of the prior art amino polyols although they are of a higher functionality.
Inventors
- 👤 Michael Cuscurida
- 👤 Neal J. Grice
- 👤 George P. Speranza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:16
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/64; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5069; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08G59/50; C08G59/504; C08G65/00; C08G65/02; C08G65/26
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
52 words
A modified amino polyol for use in preparing rigid polyurethane foams, the modified amino polyol being produced by the reaction of (a) a rigid foam polyol initiator having an active hydrogen functionality equal to or greater than four (b) an amine, (c) one or more alkylene oxides and (d) an epoxy resin.
Claim 2
Dependent Claim
52 words
A modified amino polyol for use in preparing rigid polyurethane foams, the modified amino polyol being produced by the reaction of (a) a rigid foam polyol initiator having an active hydrogen functionality equal to or greater than four (b) an amine, (c) one or more alkylene oxides and (d) an epoxy resin.
Claim 3
Dependent Claim
25 words
The modified amino polyol of claim 1 in which the alkylene oxides are taken from the group of ethylene oxide, propylene oxide and 1,2-butylene oxide.
Claim 4
Dependent Claim
35 words
The modified amino polyol of claim 1 in which the epoxy resin is selected from the group of epoxy resins consisting of the diglycidyl ether of Bisphenol A, epoxy novolak resins and aliphatic epoxy resins.
Claim 5
Dependent Claim
29 words
The modified amino polyol of claim 1 in which the components are reacted in the range of 70° to 150° C. during the preparation of the modified amino polyol.
Claim 6
Dependent Claim
39 words
The modified amino polyol of claim 1 in which the epoxy resin is reacted last and the ratio of the equivalent weight of intermediate polyol oxide adduct to the equivalent weight of epoxy is at least 2 to 1.
Claim 7
Dependent Claim
34 words
The modified amino polyol of claim 1 in which the rigid foam polyol initiator is selected from the group of initiators consisting of sucrose, sorbitol, methyl glucoside, starch glycosides and aliphatic or aromatic amines.
Claim 8
Dependent Claim
44 words
The modified amino polyol of claim 1 in which the amine is taken from the group of ammonia, methylamine, dimethylamine, diethylamine, dipropylamine, dibutylamine, ethylenediamine, 1,3-propanediamine, diethylenetriamine, triethylenetetramine, hexaethyleneheptamine, imino-bis-propylamine, ethanolamine, diethanolamine, triethanolamine, isopropanolamine, diisopropanolamine, triisopropanolamine, aminoethylethanolamine, aniline, benzylamine, piperazine, morpholine, toluene diamine and aniline.
Claim 9
Dependent Claim
127 words
A modified amino polyol for use in preparing rigid polyurethane foams, the modified amino polyol being produced by the reaction of (a) a rigid foam polyol initiator having an active hydrogen functionality equal to or greater than four selected from the group of initiators consisting of sucrose, sorbitol, methyl glucoside, starch glycosides and aliphatic or aromatic amines (b) an amine, (c) one or more alkylene oxides and (d) an epoxy resin selected from the group of epoxy resins consisting of the diglycidyl ether of Bisphenol A, epoxy novolak resins and aliphatic epoxy resins in which the epoxy resin is reacted last and in which the ratio of the equivalent weight of intermediate polyol oxide adduct to the equivalent weight of epoxy is at least 2 to 1.
Claim 10
Dependent Claim
127 words
A modified amino polyol for use in preparing rigid polyurethane foams, the modified amino polyol being produced by the reaction of (a) a rigid foam polyol initiator having an active hydrogen functionality equal to or greater than four selected from the group of initiators consisting of sucrose, sorbitol, methyl glucoside, starch glycosides and aliphatic or aromatic amines (b) an amine, (c) one or more alkylene oxides and (d) an epoxy resin selected from the group of epoxy resins consisting of the diglycidyl ether of Bisphenol A, epoxy novolak resins and aliphatic epoxy resins in which the epoxy resin is reacted last and in which the ratio of the equivalent weight of intermediate polyol oxide adduct to the equivalent weight of epoxy is at least 2 to 1.
Claim 11
Independent Claim
61 words
A method for the preparation of a modified amino polyol for use in preparing rigid polyurethane foams which comprises (a) mixing an amine with a rigid foam polyol initiator having an active hydrogen functionality equal to or greater than four, (b) reacting the resulting mixture with one or more alkylene oxides, and (c) reacting the alkoxy adduct with an epoxy resin.
Claim 12
Independent Claim
61 words
A method for the preparation of a modified amino polyol for use in preparing rigid polyurethane foams which comprises (a) mixing an amine with a rigid foam polyol initiator having an active hydrogen functionality equal to or greater than four, (b) reacting the resulting mixture with one or more alkylene oxides, and (c) reacting the alkoxy adduct with an epoxy resin.
Claim 13
Dependent Claim
23 words
The method of claim 9 in which the alkylene oxides are taken from the group of ethylene oxide, propylene oxide and 1,2-butylene oxide.
Claim 14
Dependent Claim
33 words
The method of claim 9 in which the epoxy resin is selected from the group of epoxy resins consisting of the diglycidyl ether of Bisphenol A, epoxy novolak resins and aliphatic epoxy resins.
Claim 15
Dependent Claim
27 words
The method of claim 9 in which the components are reacted in the range of 80° to 110° C. during the preparation of the modified amino polyol.
Claim 16
Dependent Claim
36 words
The method of claim 9 in which the epoxy resin is reacted last and ratio of the equivalent weight of intermediate polyol oxide adduct to the equivalent weight of epoxy is at least 2 to 1.
Claim 17
Dependent Claim
32 words
The method of claim 9 in which the rigid foam polyol initiator is selected from the group of initiators consisting of sucrose, sorbitol, methyl glucoside, starch glycosides and aliphatic or aromatic amines.
Claim 18
Dependent Claim
42 words
The method of claim 9 in which the amine is taken from the group of ammonia, methylamine, dimethylamine, diethylamine, dipropylamine, dibutylamine, ethylenediamine, isopropanolamine, diisopropanolamine, triisopropanolamine, 1,3-propanediamine, diethylenetriamine, triethylenetetramine, hexaethyleneheptamine, imino-bis-propylamine, ethanolamine, diethanolamine, triethanolamine, aminoethylethanolamine, aniline, benzylamine, piperazine, morpholine, toluene diamine and aniline.
Claim 19
Independent Claim
126 words
A method for the preparation of a modified amino polyol for use in preparing rigid polyurethane foams which comprises (a) mixing an amine with a rigid foam polyol initiator having an active hydrogen functionality equal to or greater than four selected from the group of initiators consisting of sucrose, sorbitol, methyl glucoside, starch glycosides and aliphatic or aromatic amines, (b) reacting the resulting mixture with one or more alkylene oxides, and (c) reacting the alkoxy adduct with an epoxy resin selected from the group of epoxy resins consisting of the diglycidyl ether of Bisphenol A, epoxy novolak resins and aliphatic epoxy resins, such that the ratio of equivalent weight of intermediate polyol oxide adduct to the equivalent weight of epoxy is at least 2 to 1.
Claim 20
Independent Claim
126 words
A method for the preparation of a modified amino polyol for use in preparing rigid polyurethane foams which comprises (a) mixing an amine with a rigid foam polyol initiator having an active hydrogen functionality equal to or greater than four selected from the group of initiators consisting of sucrose, sorbitol, methyl glucoside, starch glycosides and aliphatic or aromatic amines, (b) reacting the resulting mixture with one or more alkylene oxides, and (c) reacting the alkoxy adduct with an epoxy resin selected from the group of epoxy resins consisting of the diglycidyl ether of Bisphenol A, epoxy novolak resins and aliphatic epoxy resins, such that the ratio of equivalent weight of intermediate polyol oxide adduct to the equivalent weight of epoxy is at least 2 to 1.
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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |