US4284758A
Expired / Lapsed
US
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Glyoxal/cyclic urea condensates
Assignee: Omnova Services Inc
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Filing: 1980-11-17
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Granted: 1981-08-18
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Expires: 2000-11-17
Abstract
Abstract Alkylated glyoxal/cyclic urea condensates are excellent formaldehyde-free crosslinking resins for textile fabrics.
Inventors
- 👤 Bernard F. North
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:37
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G12/42; C08G12/424
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
18 words
The alkylated product of the reaction of approximately stoichiometric amounts of glyoxal and one or more cyclic ureas.
Claim 2
Dependent Claim
18 words
The alkylated product of the reaction of approximately stoichiometric amounts of glyoxal and one or more cyclic ureas.
Claim 3
Dependent Claim
14 words
The product of claim 1 wherein the ratio of glyoxal:cyclic urea is about 0.8-1.2:1.
Claim 4
Dependent Claim
98 words
The product of the claim 1 wherein the cyclic urea has the following formula: ##STR2## wherein R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 may be the same or different and each may be H, OH, COOH, R, OR, or COOR wherein R is an alkyl or a substituted alkyl group having 1 to 4 carbon atoms, and X may be C, O, or N; when X is O, R 3 and R 4 are each zero; when X is N, R 3 or R 4 is zero.
Claim 5
Dependent Claim
28 words
A water-soluble resinous product prepared by alkylating the product of the condensation of glyoxal and at least one cyclic urea, the ratio of glyoxal:cyclic urea being about 0.8-1.2:1.
Claim 6
Dependent Claim
28 words
A water-soluble resinous product prepared by alkylating the product of the condensation of glyoxal and at least one cyclic urea, the ratio of glyoxal:cyclic urea being about 0.8-1.2:1.
Claim 7
Dependent Claim
17 words
The resinous product prepared by condensing glyoxal with at least one alkylated cyclic urea of claim 3.
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) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |