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US4186255A
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Bis-quaternary ammonium salts as polyisocyanurate catalysts
Assignee: Huntsman Corp
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Filing: 1978-03-13
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Granted: 1980-01-29
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Expires: 1998-03-13
Abstract
Abstract Covers the use of quaternary ammonium carboxylate salts as polyisocyanurate catalysts. Said catalysts are useful in promoting the reaction between a polyol and an aromatic polyisocyanate to prepare a polymer containing recurring isocyanurate and urethane linkages.
Inventors
- 👤 Howard P. Klein
- 👤 George P. Speranza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:36
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/1875; C08G2115/00; C08G2115/02; Y; Y10; Y10S; Y10S521/00; Y10S521/902
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
132 words
In a process for preparing a polymer containing recurring isocyanurate and urethane linkages, which polymer comprises the reaction product of a polyol and an aromatic polyisocyanate, while utilizing an isocyanurate group formation catalyst; the improvement which comprises employing as said isocyanurate catalyst a quaternary ammonium carboxylate salt which comprises a compound falling within the following structural formula: ##STR3## where R 1 , R 2 and R 3 individually are radicals selected from the group consisting of alkyl, or substituted alkyl, R 4 is a radical substituted from the group consisting of alkyl, substituted alkyl or hydrogen, R is a radical selected from the group consisting of --CH 2 -- x , ##STR4## and x is a number of from 0 to 20 and n is a number of from 1 to 4.
Claim 2
Dependent Claim
132 words
In a process for preparing a polymer containing recurring isocyanurate and urethane linkages, which polymer comprises the reaction product of a polyol and an aromatic polyisocyanate, while utilizing an isocyanurate group formation catalyst; the improvement which comprises employing as said isocyanurate catalyst a quaternary ammonium carboxylate salt which comprises a compound falling within the following structural formula: ##STR3## where R 1 , R 2 and R 3 individually are radicals selected from the group consisting of alkyl, or substituted alkyl, R 4 is a radical substituted from the group consisting of alkyl, substituted alkyl or hydrogen, R is a radical selected from the group consisting of --CH 2 -- x , ##STR4## and x is a number of from 0 to 20 and n is a number of from 1 to 4.
Claim 3
Dependent Claim
14 words
The process of claim 1 wherein said polyol is a polyether or polyester polyol.
Claim 4
Dependent Claim
26 words
The process of claim 1 wherein said polymer is a cellular polymer obtained by reacting said polyol and said polyisocyanate in presence of a blowing agent.
Claim 5
Dependent Claim
12 words
The process of claim 3 wherein a rigid polyisocyanurate foam is produced.
Claim 6
Dependent Claim
13 words
The process of claim 1 where R is --CH 2 OCH 2 --.
Claim 7
Dependent Claim
18 words
The process of claim 1 where R is --CH 2 -- x and x is 2 or 6.
Claim 8
Dependent Claim
9 words
The process of claim 1 where R is --C.tbd.C--.
Claim 9
Dependent Claim
9 words
The process of claim 1 where R is --C═C--.
Claim 10
Dependent Claim
8 words
The process of claim wherein R is ##STR5##
Claim 11
Dependent Claim
85 words
A polyisocyanurate catalyst compound having a structural formula as follows: ##STR6## where R 1 , R 2 and R 3 individually are radicals selected from the group consisting of alkyl, or substituted alkyl, R 4 is a radical substituted from the group consisting of alkyl, substituted alkyl or hydrogen, R is a radical selected from the group consisting of --CH 2 -- x , ##STR7## and x is a number of from 0 to 20 and n is a number of from 1 to 4.
Claim 12
Dependent Claim
85 words
A polyisocyanurate catalyst compound having a structural formula as follows: ##STR6## where R 1 , R 2 and R 3 individually are radicals selected from the group consisting of alkyl, or substituted alkyl, R 4 is a radical substituted from the group consisting of alkyl, substituted alkyl or hydrogen, R is a radical selected from the group consisting of --CH 2 -- x , ##STR7## and x is a number of from 0 to 20 and n is a number of from 1 to 4.
Claim 13
Dependent Claim
13 words
The compound of claim 10 where R is --CH 2 OCH 2 --.
Claim 14
Dependent Claim
18 words
The compound of claim 10 where R is --CH 2 -- x and x is 2 or 6.
Claim 15
Dependent Claim
9 words
The compound of claim 10 where R is --C.tbd.C--.
Claim 16
Dependent Claim
9 words
The compound of claim 10 where R is --CH═CH--.
Claim 17
Dependent Claim
9 words
The compound of claim 10 where R is ##STR8##
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |