US3933426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making textiles containing cellulose crease-resistant
Assignee: Novartis Corp
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Filing: 1973-10-02
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Granted: 1976-01-20
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Expires: 1993-10-02
Abstract
Abstract This invention relates to a process for making textiles containing cellulose crease-resistant. The process of the invention involves contacting the textile with an aqueous treatment bath to which alkali chlorides or bromides of sodium and potassium have been added and which contains 1,3-dimethylol-4,5-dihydroxyethylene urea, the hydroxyl and methylol groups of which can optionally be partially or completely etherified with low, monohydric aliphatic alcohols with 1 to 3 carbon atoms and potential acid catalysts. It is possible for the treatment bath to contain in addition other precondensates normally used in the treatment of textiles provided at least 40% by weight based on the weight of the sum of the N-methylol derivatives calculated as anhydrous substances is the optionally etherified 1,3-dimethylol-4,5-dihydroxyethylene urea. 1 to 12% by weight of the alkali metal chloride or a bromide of sodium and potassium based on the weight of the N-methylol derivatives calculated as anhydrous substances are employed in the treatment bath. After contacting the textile with the bath it is dried and heated to cure the resin and/or crosslink it with the fibre.
Inventors
- 👤 Bruno Martini
- 👤 Gunter Pusch
- 👤 Erich Rossler
- 👤 Dieter Walz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
129 words
A process for making textile containing cellulose crease-resistant which comprises contacting the textile material with an aqueous finishing solution containing one or more N-methylol or N-methylol ether derivatives of nitrogenous compounds and of which at least 40% by weight based on the weight of the sum of the N-methylol derivatives calculated as anhydrous substances is 1,3-dimethylol-4,5-dihydroxyethylene urea the hydroxyl and methylol groups of which are free or are partially or completely etherified with a monohydric aliphatic alcohol containing 1 to 3 carbon atoms, a potential acid catalyst, and from 1 to 12% by weight based on the weight of the N-methylol derivatives calculated as anhydrous substances of an alkali metal chloride or a bromide of sodium or potassium and drying and subjecting the textile material to a heat treatment.
Claim 2
Dependent Claim
129 words
A process for making textile containing cellulose crease-resistant which comprises contacting the textile material with an aqueous finishing solution containing one or more N-methylol or N-methylol ether derivatives of nitrogenous compounds and of which at least 40% by weight based on the weight of the sum of the N-methylol derivatives calculated as anhydrous substances is 1,3-dimethylol-4,5-dihydroxyethylene urea the hydroxyl and methylol groups of which are free or are partially or completely etherified with a monohydric aliphatic alcohol containing 1 to 3 carbon atoms, a potential acid catalyst, and from 1 to 12% by weight based on the weight of the N-methylol derivatives calculated as anhydrous substances of an alkali metal chloride or a bromide of sodium or potassium and drying and subjecting the textile material to a heat treatment.
Claim 3
Dependent Claim
42 words
A process according to claim 1 which comprises using the alkali metal chlorides or the bromides of sodium and potassium in a quantity of from 2 to 8% by weight, based on the weight of the N-methylol derivatives calculated as anhydrous substances.
Claim 4
Dependent Claim
28 words
A process according to claim 1 which comprises initially adding the inert inorganic salts to the aqueous solution of the N-methylol derivatives of nitrogenous compounds containing 1,3-dimethylol-4,5-dihydroxyethylene urea.
Claim 5
Dependent Claim
39 words
A process according to claim 1 which comprises using at least 60% by weight of the N-methylol derivatives of nitrogenous compounds based on the weight of the sum of the N-methylol derivatives calculated as anhydrous substances is 1,3-dimethylol-4,5-dihydroxyethylene urea.
Claim 6
Dependent Claim
93 words
A process according to claim 1 which comprises using a finishing solution containing, in addition to the 1,3-dimethylol-4,5-dihydroxyethylene urea the hydroxyl and methylol groups of which are free or partially or completely etherified with a monohydric aliphatic alcohol containing 1 to 3 carbon atoms, methylol melamines with a least 4 methylol groups, the methylol groups being partially or completely etherified with monohydric, aliphatic alcohols with 1 to 3 carbon atoms, in an amount of from 1 to 40% based on the weight of the 1,3-dimethylol-4,5-dihydroxyethylene urea and methylol melamine, calculated as anhydrous substances.
Claim 7
Dependent Claim
19 words
A process according to claim 1 which comprises using as the inert inorganic salt sodium chloride or potassium chloride.
Claim 8
Dependent Claim
21 words
A process according to claim 1 which comprises using N-methylol derivatives of nitrogenous compounds additionally including one or more acetal resins.
Claim 9
Dependent Claim
20 words
A process according to claim 1 which comprises between the drying and heating subjecting the textile material to other processes.
Claim 10
Dependent Claim
17 words
A process according to claim 8 which comprises as the other processes ready-making of the finished garment.
Claim 11
Dependent Claim
21 words
A process according to claim 1 which comprises subjecting the treated textile material to a heat treatment at 140° to 190°C.
Claim 12
Dependent Claim
12 words
The cellulosic textile material treated according to the process of claim 1.
Claim 13
Dependent Claim
21 words
A process according to claim 5 which comprises subjecting the treated textile material to a heat treatment at 140° to 190°C.
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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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |