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Patent US4306872A successfully refreshed from Google Patents.
US4306872A
Expired / Lapsed
US
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Imidazolidinones in a durable press process
Assignee: FREEDOM TEXTILE CHEMICALS Co
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Filing: 1980-01-17
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Granted: 1981-12-22
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Expires: 2000-01-17
Abstract
Abstract This invention relates to imidazolidinones and the use of the same to impart durable press properties to cellulosic textile materials. More particularly, it relates to novel imidazolidinones which release environmentally acceptable amounts of formaldehyde during the application and curing on said cellulosic textile materials.
Inventors
- 👤 William F. Herbes
- 👤 Chi-Fei Ling
- 👤 William N. Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:42
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
165 words
A process for imparting a durable press appearance to a cellulosic textile substrate material, comprising applying to said cellulosic textile material a composition comprising an aqueous solution of at least 2% by weight solids content of a compound represented by formula (I) ##STR12## wherein R 1 is an alkyl radical of from 1 to 4 carbon atoms, or a hydroxy-substituted alkyl radical of from 2 to 4 carbon atoms, with the proviso that the hydroxy group is not on the first carbon atom; R 2 and R 3 are selected from hydrogen or an alkyl radical of from 1 to 4 carbon atoms; and X represents a radical selected from ##STR13## and a suitable catalyst in an amount sufficient to be effective as a curing agent for said compound and thereafter curing the treated substrate, said composition being applied in an amount and said curing being at a temperature, respectively, sufficiently high to impart a high order of resistance to creasing to said textile material.
Claim 2
Dependent Claim
165 words
A process for imparting a durable press appearance to a cellulosic textile substrate material, comprising applying to said cellulosic textile material a composition comprising an aqueous solution of at least 2% by weight solids content of a compound represented by formula (I) ##STR12## wherein R 1 is an alkyl radical of from 1 to 4 carbon atoms, or a hydroxy-substituted alkyl radical of from 2 to 4 carbon atoms, with the proviso that the hydroxy group is not on the first carbon atom; R 2 and R 3 are selected from hydrogen or an alkyl radical of from 1 to 4 carbon atoms; and X represents a radical selected from ##STR13## and a suitable catalyst in an amount sufficient to be effective as a curing agent for said compound and thereafter curing the treated substrate, said composition being applied in an amount and said curing being at a temperature, respectively, sufficiently high to impart a high order of resistance to creasing to said textile material.
Claim 3
Dependent Claim
15 words
A process according to claim 1 wherein X in formula I is --CH 2 --.
Claim 4
Dependent Claim
124 words
A process according to claim 2 wherein said composition comprises a solution in water wherein the compound of formula I is at a concentration from about 2% to about 25%, based on the weight of said composition, and a catalyst selected from magnesium chloride, zinc fluoroborate, or magnesium fluoroborate at a concentration from about 0.3% to about 4%, based on the weight of said composition, said composition being applied to said cellulosic textile material to deposit said compound of formula I in an amount from about 1.5% to about 11.0% based on the weight of said textile material, drying the treated substrate and thereafter curing the same at a temperature ranging from about 250° F. to about 400° F. for about 15 secs-30 minutes.
Claim 5
Dependent Claim
15 words
The process according to claim 1 wherein said cellulosic textile material is a polyester/cotton fabric.
Claim 6
Dependent Claim
15 words
The process according to claim 1 wherein said cellulosic textile material is a cotton fabric.
Claim 7
Dependent Claim
7 words
The treated polyester/cotton fabric of claim 4.
Claim 8
Dependent Claim
7 words
The treated cotton fabric of claim 5.
References Cited (Backward Citations)
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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) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |