US4397966A
Expired / Lapsed
US
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Alkylene oxide adducts of vicinal toluenediamine
Assignee: BASF Corp
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Filing: 1981-12-01
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Granted: 1983-08-09
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Expires: 2001-12-01
Abstract
Abstract The subject invention relates to polyol compositions which are alkylene oxide adducts of a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of ammonia, an aliphatic amine having a molecular weight of from 20 to 120, an alkanolamine having a molecular weight of from 50 to 120, and mixtures thereof. Low molecular weight diols may also be used as a co-initiator in combination with ammonia, an aliphatic amine, an alkanolamine, or mixtures thereof. The subject polyol compositions are particularly useful in the preparation of rigid polyurethane foams.
Inventors
- 👤 Theodore O. Stolz
- 👤 Richard A. Moore
- 👤 James P. Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:13
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5033
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
55 words
A polyol composition comprising the reaction product of an alkylene oxide and a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of ammonia, an aliphatic amine having a molecular weight of from 20 to 120, an alkanolamine having a molecular weight of from 50 to 120, and mixtures thereof.
Claim 2
Dependent Claim
55 words
A polyol composition comprising the reaction product of an alkylene oxide and a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of ammonia, an aliphatic amine having a molecular weight of from 20 to 120, an alkanolamine having a molecular weight of from 50 to 120, and mixtures thereof.
Claim 3
Dependent Claim
24 words
The polyol composition of claim 1 wherein sufficient alkylene oxide is used to produce a polyol having a hydroxyl number of 300 to 600.
Claim 4
Dependent Claim
42 words
The polyol composition of claim 2 wherein the vicinal toluenediamine is a mixture consisting essentially of 90 percent by weight of an approximately 1:1 weight ratio of 2,3-toluenediamine and 3,4-toluenediamine and 10 percent by weight of a mixture of 2,4-toluenediamine and 2,6-toluenediamine.
Claim 5
Dependent Claim
24 words
The polyol composition of claim 3 wherein the alkylene oxide is selected from the group consisting of ethylene oxide, propylene oxide, and mixtures thereof.
Claim 6
Dependent Claim
12 words
The polyol composition of claim 4 wherein the aliphatic amine is ethylenediamine.
Claim 7
Dependent Claim
20 words
The polyol composition of claim 4 wherein the alkanolamine is selected from the group consisting of monoethanolamine, diethanolamine, and triethanolamine.
Claim 8
Dependent Claim
20 words
The polyol composition of claim 5 wherein the weight ratio of vicinal toluenediamine to ethylenediamine is from 5:1 to 50:1.
Claim 9
Dependent Claim
72 words
The polyol composition of claim 7 wherein the alkylene oxide is added in two steps such that from 1-5 moles of ethylene oxide are added in the first step per mole of initiator and from 1-5 moles of propylene oxide are added in the second step, with the proviso that the total amount of alkylene oxide added is such that the polyol composition will have a hydroxyl number of 400 to 550.
Claim 10
Dependent Claim
22 words
The polyol composition of claim 7 wherein a diol is used as an initiator in addition to vicinal toluenediamine and aliphatic amine.
Claim 11
Dependent Claim
12 words
The polyol composition of claim 9 wherein the diol is propylene glycol.
Claim 12
Dependent Claim
20 words
The polyol composition of claim 10 wherein the weight ratio of propylene glycol to ethylenediamine is from 3:1 to 1:3.
Claim 13
Dependent Claim
38 words
The polyol composition of claim 11 wherein the alkylene oxide is a mixture of ethylene oxide and propylene oxide with the proviso that sufficient alkylene oxide is used to produce a polyol having a hydroxyl number of 350-450.
Claim 14
Dependent Claim
21 words
The polyol composition of claim 12 wherein the weight ratio of ethylene oxide to propylene oxide is from 3:1 to 1:3.
Claim 15
Dependent Claim
56 words
A process for preparing a polyol composition comprising reacting an alkylene oxide and a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of ammonia, an aliphatic amine having a molecular weight of from 20 to 120, an alkanolamine having a molecular weight of from 50 to 120, and mixtures thereof.
Claim 16
Dependent Claim
56 words
A process for preparing a polyol composition comprising reacting an alkylene oxide and a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of ammonia, an aliphatic amine having a molecular weight of from 20 to 120, an alkanolamine having a molecular weight of from 50 to 120, and mixtures thereof.
Claim 17
Dependent Claim
23 words
The process of claim 14 wherein sufficient alkylene oxide is used to produce a polyol having a hydroxyl number of 300 to 600.
Claim 18
Dependent Claim
41 words
The process of claim 15 wherein the vicinal toluenediamine is a mixture consisting essentially of 90 percent by weight of an approximately 1:1 weight ratio of 2,3-toluenediamine and 3,4-toluenediamine and 10 percent by weight of a mixture of 2,4-toluenediamine and 2,6-toluenediamine.
Claim 19
Dependent Claim
23 words
The process of claim 16 wherein the alkylene oxide is selected from the group consisting of ethylene oxide, propylene oxide, and mixtures thereof.
Claim 20
Dependent Claim
11 words
The process of claim 17 wherein the aliphatic amine is ethylenediamine.
Claim 21
Dependent Claim
19 words
The process of claim 17 wherein the alkanolamine is selected from the group consisting of monoethanolamine, diethanolamine, and triethanolamine.
Claim 22
Dependent Claim
19 words
The process of claim 18 wherein the weight ratio of vicinal toluenediamine to ethylenediamine is from 5:1 to 50:1.
Claim 23
Dependent Claim
75 words
The process of claim 20 wherein the alkylene oxide is added in two steps such that from 1 to 5 moles of ethylene oxide are added in the first step per mole of initiator and from 1 to 5 moles of propylene oxide are added in the second step, with the proviso that the total amount of alkylene oxide added is such that the polyol composition will have a hydroxyl number of 450 to 550.
Claim 24
Dependent Claim
22 words
The polyol composition of claim 20 wherein a diol is used as an initiator in addition to vicinal toluenediamine and aliphatic amine.
Claim 25
Dependent Claim
12 words
The polyol composition of claim 22 wherein the diol is propylene glycol.
Claim 26
Dependent Claim
19 words
The process of claim 23 wherein the weight ratio of propylene glycol to ethylenediamine is from 3:1 to 1:3.
Claim 27
Dependent Claim
39 words
The process of claim 24 wherein the alkylene oxide is a mixture of ethylene oxide and propylene oxide with the proviso that sufficient alkylene oxide is used to produce a polyol having a hydroxyl number of 350 to 450.
Claim 28
Dependent Claim
17 words
The process of claim 25 wherein the weight ratio of ethylene oxide is from 3:1 to 1:3.
Claim 29
Dependent Claim
57 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, or 13, and a blowing agent wherein the ratio of isocyanate groups of the organic polyisocyanate to active hydrogen atoms of the polyol composition is from 1:0.9 to 1:1.15.
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) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |