US4148980A
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Novel carboxylate catalysts for the preparation of foams characterized by polyisocyanurate, polyurethane and poly (urethane-isocyanurate) linkages
Assignee: BASF Corp
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Filing: 1978-03-09
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Granted: 1979-04-10
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Expires: 1998-03-09
Abstract
Abstract Reaction products of certain tertiary amines, alkylene oxides and carboxylic acids have been found to be outstanding catalysts for the preparation of polyisocyanurates, polyisocyanurate foams, polyurethane foams and poly(urethane-isocyanurate) foams. Typical tertiary amines are 1,3,5-tris (N,N-dialkylaminoalkyl-5-hexahydrotriazines, pyridine and bis-(N,N-dialkylaminoalkyl) ethers.
Inventors
- 👤 Thirumurti Narayan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:35
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/02; C08G18/022; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/1875; C08G18/20; C08G18/2009; C08G18/2018; C08G18/2036; C08G2115/00; C08G2115/02; Y; Y10; Y10S; Y10S521/00; Y10S521/902
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
53 words
A composition which is the reaction product of (a) a tertiary amine selected from the group consisting of 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazines, pyridine and bis(N,N-dialkylaminoalkyl)ethers, (b) an alkylene oxide containing from 2 to 18 carbon atoms, and (c) a mono-carboxylic acid employing a mole ratio of (a) to (b) to (c) of from 1:0.5:1 to 1:6:6.
Claim 2
Dependent Claim
53 words
A composition which is the reaction product of (a) a tertiary amine selected from the group consisting of 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazines, pyridine and bis(N,N-dialkylaminoalkyl)ethers, (b) an alkylene oxide containing from 2 to 18 carbon atoms, and (c) a mono-carboxylic acid employing a mole ratio of (a) to (b) to (c) of from 1:0.5:1 to 1:6:6.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said tertiary amines is 1,3,5-tris(3-dialkylaminopropyl)-s-hexahydrotriazine.
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein said tertiary amine is bis(N,N-dimethylaminoethyl)ether.
Claim 5
Dependent Claim
22 words
The composition of claim 1 wherein said acid is selected from the group consisting of 2-ethylhexanoic acid, acetic acid, and formic acid.
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein the alkylene oxide is propylene oxide.
Claim 7
Dependent Claim
81 words
A process for the preparation of a cellular foam characterized by polyisocyanurate linkages which comprises reacting an organic polyisocyanate in the presence of a catalytically sufficient amount of a catalyst which is the reaction product of (a) a tertiary amine, selected from the group consisting of 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazines, pyridine and bis(N,N-dialkylaminoalkyl)ethers, (b) an alkylene oxide containing from 2 to 18 carbon atoms, and (c) a mono-carboxylic acid employing a mole ratio of (a) to (b) to (c) of from 1:0.5:1 to 1:6:6.
Claim 8
Dependent Claim
81 words
A process for the preparation of a cellular foam characterized by polyisocyanurate linkages which comprises reacting an organic polyisocyanate in the presence of a catalytically sufficient amount of a catalyst which is the reaction product of (a) a tertiary amine, selected from the group consisting of 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazines, pyridine and bis(N,N-dialkylaminoalkyl)ethers, (b) an alkylene oxide containing from 2 to 18 carbon atoms, and (c) a mono-carboxylic acid employing a mole ratio of (a) to (b) to (c) of from 1:0.5:1 to 1:6:6.
Claim 9
Dependent Claim
11 words
The process of claim 6 wherein said tertiary amine is 1,3,5-tris(3-dimethylaminopropyl)-s-hexahydrotriazine.
Claim 10
Dependent Claim
11 words
The process of claim 6 wherein said tertiary amine is bis(N,N-dimethylaminoethyl)ether.
Claim 11
Dependent Claim
22 words
The process of claim 6 wherein said acid is selected from the group consisting of 2-ethylhexanoic acid, acetic acid, and formic acid.
Claim 12
Dependent Claim
12 words
The process of claim 6 wherein the alkylene oxide is propylene oxide.
Claim 13
Dependent Claim
96 words
A process for the preparation of a cellular foam characterized by polyisocyanurate and polyurethane linkages which comprises reacting one equivalent of an organic polyisocyanate and from 0.01 to 0.5 equivalents of a polyol in the presence of a catalytically sufficient amount of a catalyst which is the reaction product of (a) a tertiary amine selected from the group consisting of 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazines, pyridine and bis(N,N-dialkylaminoalkyl ethers, (b) an alkylene oxide containing from 2 to 18 carbon atoms, and (c) a mono-carboxylic acid employing a mole ratio of (a) to (b) to (c) of from 1:0.5:1 to 1:6:6.
Claim 14
Dependent Claim
96 words
A process for the preparation of a cellular foam characterized by polyisocyanurate and polyurethane linkages which comprises reacting one equivalent of an organic polyisocyanate and from 0.01 to 0.5 equivalents of a polyol in the presence of a catalytically sufficient amount of a catalyst which is the reaction product of (a) a tertiary amine selected from the group consisting of 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazines, pyridine and bis(N,N-dialkylaminoalkyl ethers, (b) an alkylene oxide containing from 2 to 18 carbon atoms, and (c) a mono-carboxylic acid employing a mole ratio of (a) to (b) to (c) of from 1:0.5:1 to 1:6:6.
Claim 15
Dependent Claim
11 words
The process of claim 11 wherein said tertiary amine is 1,3,5-tris(3-dimethylaminopropyl)-s-hexahydrotrizine.
Claim 16
Dependent Claim
11 words
The process of claim 11 wherein said tertiary amine is bis(N,N-dimethylaminoethyl)ether.
Claim 17
Dependent Claim
22 words
The process of claim 11 wherein said acid is selected from the group consisting of 2-ethylhexanoic acid, acetic acid, and formic acid.
Claim 18
Dependent Claim
12 words
The process of claim 11 wherein the alkylene oxide is propylene oxide.
Claim 19
Dependent Claim
90 words
A process for the preparation of a cellular foam characterized by polyurethane linkages which comprises reacting an organic polyisocyanate and a polyol, on an essentially 1:1 equivalent basis, in the presence of a catalytically sufficient amount of a catalyst which is the reaction product of (a) a tertiary amine selected from the group consisting of 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazines, pyridine and bis(N,N-dialkylaminoalkyl)ethers, (b) an alkylene oxide containing from 2 to 18 carbon atoms, and (c) a carboxylic acid employing a mole ratio of (a) to (b) to (c) of from 1:0.5:1 to 1:6:6.
Claim 20
Dependent Claim
90 words
A process for the preparation of a cellular foam characterized by polyurethane linkages which comprises reacting an organic polyisocyanate and a polyol, on an essentially 1:1 equivalent basis, in the presence of a catalytically sufficient amount of a catalyst which is the reaction product of (a) a tertiary amine selected from the group consisting of 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazines, pyridine and bis(N,N-dialkylaminoalkyl)ethers, (b) an alkylene oxide containing from 2 to 18 carbon atoms, and (c) a carboxylic acid employing a mole ratio of (a) to (b) to (c) of from 1:0.5:1 to 1:6:6.
Claim 21
Dependent Claim
11 words
The process of claim 16 wherein said tertiary amine is 1,3,5-tris(3-dimethylaminopropyl)-s-hexahydrotriazine.
Claim 22
Dependent Claim
11 words
The process of claim 16 wherein said tertiary amine is bis(N,N-dimethylaminoethyl)ether.
Claim 23
Dependent Claim
22 words
The process of claim 16 wherein said acid is selected from the group consisting of 2-ethylhexanoic acid, acetic acid, and formic acid.
Claim 24
Dependent Claim
12 words
The process of claim 16 wherein the alkylene oxide is propylene oxide.
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) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |