US4180643A
Expired / Lapsed
US
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Acrylamide or methacrylamide quaternary compounds
Assignee: Huntsman Corp
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Filing: 1978-11-16
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Granted: 1979-12-25
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Expires: 1998-11-16
Abstract
Abstract Covers a new composition of matter comprising an acrylamide or methacrylamide monomer characterized by the following structural formula: ##STR1## where R 1 , R 2 and R 5 are hydrogen or methyl, R 3 and R 4 are lower alkyl, n is an integer ranging from 1 to 6 and A represents an anion.
Inventors
- 👤 Philip H. Moss
- 👤 Edward C. Y. Nieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:12
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/1875; C08G18/1866; C08G2115/00; C08G2115/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
47 words
An acrylamide or methacrylamide quaternary characterized by the following structural formula: ##STR8## where R 1 , R 2 and R 5 are hydrogen or methyl, R 3 and R 4 are lower alkyl, n is an integer ranging from 1 to 6 and A represents an anion.
Claim 2
Dependent Claim
47 words
An acrylamide or methacrylamide quaternary characterized by the following structural formula: ##STR8## where R 1 , R 2 and R 5 are hydrogen or methyl, R 3 and R 4 are lower alkyl, n is an integer ranging from 1 to 6 and A represents an anion.
Claim 3
Dependent Claim
7 words
The quaternary of claim 1 where n=3.
Claim 4
Dependent Claim
13 words
The quaternary of claim 2 where R 3 and R 4 are methyl.
Claim 5
Dependent Claim
15 words
The quaternary of claim 3 wherein R 1 is methyl and R 2 is hydrogen.
Claim 6
Dependent Claim
96 words
In a process for preparing a polymer containing recurring isocyanurate and urethane linkages, which polymer comprises the reaction product of a polyether or polyester polyol and an aromatic polyisocyanate, while utilizing an isocyanurate group formation catalyst; the improvement which comprises employing as said isocyanurate catalyst an acrylamide or methacrylamide quaternary which comprises a compound falling within the following structural formula: ##STR9## where R 1 , R 2 and R 5 are hydrogen or methyl, R 3 and R 4 are lower alkyl, n is an integer ranging from 1 to 6 and A represents an anion.
Claim 7
Dependent Claim
96 words
In a process for preparing a polymer containing recurring isocyanurate and urethane linkages, which polymer comprises the reaction product of a polyether or polyester polyol and an aromatic polyisocyanate, while utilizing an isocyanurate group formation catalyst; the improvement which comprises employing as said isocyanurate catalyst an acrylamide or methacrylamide quaternary which comprises a compound falling within the following structural formula: ##STR9## where R 1 , R 2 and R 5 are hydrogen or methyl, R 3 and R 4 are lower alkyl, n is an integer ranging from 1 to 6 and A represents an anion.
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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) | 1982-12-24 | 1983-06-25 | 1983-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-24 | 1987-06-25 | 1987-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-24 | 1991-06-25 | 1991-12-25 | $7700.00 | Window Closed / Lapsed |