Patent US4469822A successfully refreshed from Google Patents.
US4469822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylene oxide adducts of vicinal toluenediamine and co-initiators, useful for rigid polyurethane foams
Assignee: BASF Corp
•
Filing: 1983-07-14
•
Granted: 1984-09-04
•
Expires: 2003-07-14
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 glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and mixtures thereof. Low molecular weight diols may also be used as a co-initiator in combination with the glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and 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
2026-10-24 22:34
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4804; C08G18/482; C08G18/4829; C08G18/50; C08G18/5021; C08G18/5033; C08G65/00; C08G65/02; C08G65/26; C08G65/2618; C08G65/2621; C08G65/2627; C08G2110/00; C08G2110/0025; C08G2110/0041; C08G2110/005
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
36 words
A polyol composition comprising the reaction product of an alkylene oxide and a mixture of initiators comprising vicinal toluenediamine and a co-initiator selected from the group consisting of glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and mixtures thereof.
Claim 2
Dependent Claim
36 words
A polyol composition comprising the reaction product of an alkylene oxide and a mixture of initiators comprising vicinal toluenediamine and a co-initiator selected from the group consisting of glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, 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
20 words
The polyol composition of claim 4 wherein the weight ratio of vicinal toluenediamine to co-initiator is from 5:1 to 50:1.
Claim 7
Dependent Claim
72 words
The polyol composition of claim 5 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 8
Dependent Claim
22 words
The polyol composition of claim 6 wherein a diol is used as an initiator in addition to vicinal toluenediamine and the co-initiator.
Claim 9
Dependent Claim
12 words
The polyol composition of claim 7 wherein the diol is propylene glycol.
Claim 10
Dependent Claim
20 words
The polyol composition of claim 8 wherein the weight ratio of propylene glycol to co-initiator is from 3:1 to 1:3.
Claim 11
Dependent Claim
38 words
The polyol composition of claim 9 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 12
Dependent Claim
21 words
The polyol composition of claim 10 wherein the weight ratio of ethylene oxide to propylene oxide is from 3:1 to 1:3.
Claim 13
Dependent Claim
37 words
A process for preparing a polyol composition comprising reacting an alkylene oxide and a mixture of initiators comprising vicinal toluenediamine and a co-initiator selected from the group consisting of glycerin, pentaerythritol, sucrose, sorbitol, trimethyolpropane, and mixtures thereof.
Claim 14
Dependent Claim
37 words
A process for preparing a polyol composition comprising reacting an alkylene oxide and a mixture of initiators comprising vicinal toluenediamine and a co-initiator selected from the group consisting of glycerin, pentaerythritol, sucrose, sorbitol, trimethyolpropane, and mixtures thereof.
Claim 15
Dependent Claim
23 words
The process of claim 12 wherein sufficient alkylene oxide is used to produce a polyol having a hydroxyl number of 300 to 600.
Claim 16
Dependent Claim
41 words
The process of claim 13 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 17
Dependent Claim
23 words
The process of claim 14 wherein the alkylene oxide is selected from the group consisting of ethylene oxide, propylene oxide, and mixtures thereof.
Claim 18
Dependent Claim
19 words
The process of claim 15 wherein the weight ratio of vicinal toluenediamine to co-initiator is from 5:1 to 50:1.
Claim 19
Dependent Claim
75 words
The process of claim 16 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 20
Dependent Claim
20 words
The process of claim 17 wherein a diol is used as an initiator in addition to vicinal toluenediamine and co-initiator.
Claim 21
Dependent Claim
11 words
The process of claim 18 wherein the diol is propylene glycol.
Claim 22
Dependent Claim
19 words
The process of claim 19 wherein the weight ratio of propylene glycol to co-initiator is from 3:1 to 1:3.
Claim 23
Dependent Claim
39 words
The process of claim 20 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 24
Dependent Claim
17 words
The process of claim 21 wherein the weight ratio of ethylene oxide is from 3:1 to 1:3.
Claim 25
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 1 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.
Claim 26
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 2 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.
Claim 27
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 3 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.
Claim 28
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 4 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.
Claim 29
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 5 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.
Claim 30
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 6 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.
Claim 31
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 7 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.
Claim 32
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 8 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.
Claim 33
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 9 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.
Claim 34
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 10 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.
Claim 35
Dependent Claim
44 words
A polyurethane foam comprising the reaction product of an organic polyisocyanate, the polyol composition of claim 11 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)
US3423344A
Cited
US3499009A
Cited
US3462492A
Cited
US3438986A
Cited
US3933698A
Cited
US4209609A
Cited
US4243759A
Cited
US4366265A
Cited
US4397966A
Cited
US4421871A
Cited
US4410641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |