US4285690A
Expired / Lapsed
US
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Novel reactants for crosslinking textile fabrics
Assignee: Omnova Services Inc
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Filing: 1980-11-17
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Granted: 1981-08-25
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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
2026-10-25 08:12
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
33 words
A reactant for imparting permanent press properties to a textile containing cellulose fibers which comprises the alkylated product of the reaction of approximately stoichiometric amounts of glyoxal and at least one cyclic urea.
Claim 2
Dependent Claim
33 words
A reactant for imparting permanent press properties to a textile containing cellulose fibers which comprises the alkylated product of the reaction of approximately stoichiometric amounts of glyoxal and at least one cyclic urea.
Claim 3
Dependent Claim
14 words
The reactant of claim 1 wherein the ratio of glyoxal:cyclic urea is about 0.8-1.2:1.
Claim 4
Dependent Claim
97 words
The reactant of 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
36 words
A process for producing crease-resistant textiles which comprises impregnating a textile containing cellulose fibers with a solution of the reactant of claim 1 and a catalyst and heating the impregnated textile to cure the reactant thereon.
Claim 6
Dependent Claim
24 words
The process of claim 4 wherein the cyclic urea has the formula of claim 3 and the ratio of glyoxal:cyclic urea is about 0.8-1.2:1.
Claim 7
Dependent Claim
13 words
A crease-resistant textile containing cellulose fibers produced by the process of claim 4.
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) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |