US4238545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified urea-formaldehyde resin
Assignee: International Minerals and Chemical Corp
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Filing: 1979-10-22
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Granted: 1980-12-09
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Expires: 1999-10-22
Abstract
Abstract A resinous product comprising a curable urea-formaldehyde resin modified by a nitroalkanol and having particular utility for treating textiles and non-woven cellulose products to provide permanent press and wrinkle-resistant characteristics.
Inventors
- 👤 Jerry H. Hunsucker
- 👤 Milton E. Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:33
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2393; Y10T442/2762; Y10T442/277; Y10T442/2828; Y10T442/2852
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
73 words
A method of preparing a wrinkle-resistant fabric comprising the steps of (a) impregnating the fabric with a solution of a curable urea-formaldehyde resin modified with from 0.25 to 3.0 moles of a nitroalkanol per mole of urea, said nitroalkanol being represented by the formula ##STR2## where R is hydrogen, methyl, ethyl or hydroxymethyl, and a catalyst therefor and (b) heating to 225° F. to 350° F. to effect a cure of the resin.
Claim 2
Independent Claim
73 words
A method of preparing a wrinkle-resistant fabric comprising the steps of (a) impregnating the fabric with a solution of a curable urea-formaldehyde resin modified with from 0.25 to 3.0 moles of a nitroalkanol per mole of urea, said nitroalkanol being represented by the formula ##STR2## where R is hydrogen, methyl, ethyl or hydroxymethyl, and a catalyst therefor and (b) heating to 225° F. to 350° F. to effect a cure of the resin.
Claim 3
Dependent Claim
10 words
A wrinkle-resistant fabric obtained by the method of claim 1.
Claim 4
Dependent Claim
16 words
The method of claim 1 wherein the fabric is a woven textile of wool or cotton.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein the fabric is a non-woven fabric of cellulose fibers.
Claim 6
Dependent Claim
11 words
A woven fabric of claim 2 made of wool or cotton.
Claim 7
Dependent Claim
10 words
A non-woven fabric of claim 2 made from cellulose fibers.
Claim 8
Independent Claim
42 words
A method of preparing a wrinkle-resistant fabric by impregnating the fabric with a curable urea-formaldehyde resin modified with a nitroalkane of 1 to 3 carbon atoms or mixture thereof in a mole ratio of from 0.25 to 3.0 per mole of urea.
Claim 9
Independent Claim
42 words
A method of preparing a wrinkle-resistant fabric by impregnating the fabric with a curable urea-formaldehyde resin modified with a nitroalkane of 1 to 3 carbon atoms or mixture thereof in a mole ratio of from 0.25 to 3.0 per mole of urea.
Claim 10
Dependent Claim
10 words
A wrinkle-resistant fabric obtained by the method of claim 7.
Claim 11
Dependent Claim
16 words
The method of claim 7 wherein the fabric is a woven textile of wool or cotton.
Claim 12
Dependent Claim
15 words
The method of claim 7 wherein the fabric is a non-woven fabric of cellulose fibers.
Claim 13
Dependent Claim
11 words
A woven fabric of claim 8 made of wool or cotton.
Claim 14
Dependent Claim
10 words
A non-woven fabric of claim 8 made from cellulose fibers.
Claim 15
Independent Claim
65 words
A method of preparing a wrinkle-resistant fabric by impregnating the fabric with a solution of a curable urea-formaldehyde resin modified with up to 1.5 moles of glyoxal per mole of urea and the so-modified resin is further modified by reaction with a nitroalkane of 1 to 3 carbon atoms or mixture thereof in a mole ratio of from 0.25 to 3.0 per mole of urea.
Claim 16
Independent Claim
65 words
A method of preparing a wrinkle-resistant fabric by impregnating the fabric with a solution of a curable urea-formaldehyde resin modified with up to 1.5 moles of glyoxal per mole of urea and the so-modified resin is further modified by reaction with a nitroalkane of 1 to 3 carbon atoms or mixture thereof in a mole ratio of from 0.25 to 3.0 per mole of urea.
Claim 17
Independent Claim
79 words
A method of preparing a wrinkle-resistant fabric by the steps of impregnating the fabric with a solution of a curable urea-formaldehyde resin modified with from 0.25 to 3.0 moles per mole of urea of a mixture of a nitroalkane of 1 to 3 carbon atoms and a nitroalkanol by the formula ##STR3## where R is hydrogen, methyl, ethyl or hydroxymethyl, and a catalyst therefor and heating to 220° F. to 350° F. to effect a cure of the resin.
Claim 18
Independent Claim
79 words
A method of preparing a wrinkle-resistant fabric by the steps of impregnating the fabric with a solution of a curable urea-formaldehyde resin modified with from 0.25 to 3.0 moles per mole of urea of a mixture of a nitroalkane of 1 to 3 carbon atoms and a nitroalkanol by the formula ##STR3## where R is hydrogen, methyl, ethyl or hydroxymethyl, and a catalyst therefor and heating to 220° F. to 350° F. to effect a cure of the resin.
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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |