US4477514A
Expired / Lapsed
US
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Method for treating cellulosic textile fabrics with aqueous emulsions of carboxyfunctional silicone fluids
Assignee: Dow Silicones Corp
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Filing: 1983-11-14
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Granted: 1984-10-16
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Expires: 2003-11-14
Abstract
Abstract A method for improving properties of a cellulosic textile fabric is disclosed. The fabric is first impregnated with an aqueous emulsion of a carboxyfunctional silicone fluid stabilized by a nonionic surfactant having a particular HLB value, and then heated to crosslink the carboxyfunctional silicone fluid.
Inventors
- 👤 Ronald P. Gee
- 👤 Robert E. Kalinowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:12
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6433; D06M13/00; D06M13/10; D06M13/165; D06M15/53; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2295; Y10T442/2369; Y10T442/2393
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
216 words
A method for improving properties of a cellulosic textile fabric, said method comprising I. impregnating said cellulosic textile fabric with an aqueous emulsion, said emulsion comprising a combination of (A) 0.1 to 60 percent by weight, based on the total weight of the emulsion, of a carboxyfunctional silicone fluid having the general formula QMe.sub.2 SiO(Me.sub.2 SiO).sub.x (MeRSiO).sub.y SiMe.sub.2 Q wherein in said formula there is 0.5 to 10 mole percent of the units (MeRSiO) present, 90 to 99.5 mole percent of (Me 2 SiO) units present and the total number of units in the molecule is 30-300, Me is a methyl radical R is a carboxyfunctional radical, said carboxyfunctional radical being selected from the group consisting of carboxyalkyl radicals and carboxythioalkyl radicals, Q is selected from the group consisting of R, Me and OH groups, x has a value of 27 to 297, y has a value of 1 to 30; (B) 0.01 to 10 percent by weight, based on the total weight of the emulsion, of a nonionic surfactant having an HLB value of 14.5 to 16.7, and (C) 30 to 99.89 percent by weight, based on the total weight of the emulsion, of water, and II. applying a sufficient amount of heat to the impregnated textile fabric to render the carboxyfunctional silicone fluid crosslinked.
Claim 2
Independent Claim
216 words
A method for improving properties of a cellulosic textile fabric, said method comprising I. impregnating said cellulosic textile fabric with an aqueous emulsion, said emulsion comprising a combination of (A) 0.1 to 60 percent by weight, based on the total weight of the emulsion, of a carboxyfunctional silicone fluid having the general formula QMe.sub.2 SiO(Me.sub.2 SiO).sub.x (MeRSiO).sub.y SiMe.sub.2 Q wherein in said formula there is 0.5 to 10 mole percent of the units (MeRSiO) present, 90 to 99.5 mole percent of (Me 2 SiO) units present and the total number of units in the molecule is 30-300, Me is a methyl radical R is a carboxyfunctional radical, said carboxyfunctional radical being selected from the group consisting of carboxyalkyl radicals and carboxythioalkyl radicals, Q is selected from the group consisting of R, Me and OH groups, x has a value of 27 to 297, y has a value of 1 to 30; (B) 0.01 to 10 percent by weight, based on the total weight of the emulsion, of a nonionic surfactant having an HLB value of 14.5 to 16.7, and (C) 30 to 99.89 percent by weight, based on the total weight of the emulsion, of water, and II. applying a sufficient amount of heat to the impregnated textile fabric to render the carboxyfunctional silicone fluid crosslinked.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein R is a carboxythioalkyl radical.
Claim 4
Dependent Claim
32 words
The method of claim 2 wherein the carboxythioalkyl radical is the --CH 2 CH 2 SCH 2 COOH radical and the nonionic surfactant has an HLB value of from 14.5 to 15.0.
Claim 5
Dependent Claim
11 words
The method of claim 3 wherein Q is a methyl radical.
Claim 6
Dependent Claim
49 words
The method of claim 4 wherein component (A) constitutes from 0.5 to 1.5% by weight, component (B) constitutes from 0.05 to 0.2% by weight, and component (C) constitutes from 99.45 to 98.3% by weight, all of the above percentages by weight based upon the total weight of the emulsion.
Claim 7
Dependent Claim
21 words
The method of claim 5 wherein there are 1 to 5 mole percent (MeRSiO) units present in the carboxyfunctional silicone fluid.
Claim 8
Dependent Claim
21 words
The method of claim 6 wherein there are 2 to 3 mole percent (MeRSiO) units present in the carboxyfunctional silicone fluid.
Claim 9
Dependent Claim
32 words
The method of claim 2 wherein the carboxythioalkyl radical is the --CH 2 CH 2 SCH 2 COOH radical and the nonionic surfactant has an HLB value of from 16.2 to 16.5.
Claim 10
Dependent Claim
11 words
The method of claim 8 wherein Q is a methyl radical.
Claim 11
Dependent Claim
49 words
The method of claim 9 wherein component (A) constitutes from 0.5 to 1.5% by weight, component (B) constitutes from 0.05 to 0.2% by weight, and component (C) constitutes from 99.45 to 98.3% by weight, all of the above percentages by weight based upon the total weight of the emulsion.
Claim 12
Dependent Claim
21 words
The method of claim 10 wherein there are 1 to 5 mole percent (MeRSiO) units present in the carboxyfunctional silicone fluid.
Claim 13
Dependent Claim
21 words
The method of claim 11 wherein there are 2 to 3 mole percent (MeRSiO) units present in the carboxyfunctional silicone fluid.
Claim 14
Dependent Claim
11 words
The method of claim 1 wherein R is a carboxyalkyl radical.
Claim 15
Dependent Claim
30 words
The method of claim 13 wherein the carboxyfunctional radical is the --CH 2 CH(CH 3 )COOH radical and the nonionic surfactant has an HLB value of from 15.6 to 16.0.
Claim 16
Dependent Claim
49 words
The method of claim 14 wherein component (A) constitutes from 0.5 to 1.5% by weight, component (B) constitutes from 0.05 to 0.2% by weight, and component (C) constitutes from 99.45 to 98.3% by weight, all of the above percentages by weight based upon the total weight of the emulsion.
Claim 17
Dependent Claim
21 words
The method of claim 15 wherein there are 1 to 5 mole percent (MeRSiO) units present in the carboxyfunctional silicone fluid.
Claim 18
Dependent Claim
21 words
The method of claim 16 wherein there are 2 to 3 mole percent (MeRSiO) units present in the carboxyfunctional silicone fluid.
Claim 19
Dependent Claim
11 words
A cellulosic textile fabric treated by the method of claim 1.
Claim 20
Dependent Claim
11 words
A cellulosic textile fabric treated by the method of claim 2.
Claim 21
Dependent Claim
11 words
A cellulosic textile fabric treated by the method of claim 3.
Claim 22
Dependent Claim
11 words
A cellulosic textile fabric treated by the method of claim 8.
Claim 23
Dependent Claim
11 words
A cellulosic textile fabric treated by the method of claim 13.
Claim 24
Dependent Claim
11 words
A cellulosic textile fabric treated by the method of claim 14.
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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) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |