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US4423108A
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Method for durable press finish using formaldehyde-free organosilicon compositions and textile therefrom
Assignee: Dow Silicones Corp
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Filing: 1982-03-22
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Granted: 1983-12-27
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Expires: 2002-03-22
Abstract
Abstract This disclosure relates to a method for imparting durable press characteristics to textile fabrics containing cellulosic fibers. The fabric is impregnated with a homogeneous composition comprising a volatile liquid carrier and certain methoxylated, phenyl-substituted fluid organosilicon polymers, and is subsequently heated to effect crosslinking of the fluid organosilicon polymers.
Inventors
- 👤 Robert E. Kalinowski
- 👤 Gary A. Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:30
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2762; Y10T442/277; Y10T442/2803
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
253 words
A method for imparting durable press characteristics to a cellulosic fiber containing textile fabric, said method comprising: (a) impregnating the textile fabric with a homogeneous composition comprising a volatile liquid carrier and a fluid organosilicon polymer selected from the group consisting of (i) polymers consisting of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units and (CH 3 O) y (CH 3 ) 2 SiO.sub.(2-y)/2 units wherein x has a value of 2, 1 or 0, y has a value of 1 or 0, the sum of x+y has a value greater than 0, and the molar ratio of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units to (CH 3 O) y (CH 3 ) 2 SiO.sub.(2-y)/2 units has a value of from 1:4 to 1:40 and (ii) polymers consisting of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units, (CH 3 O) z CH 3 SiO.sub.(3-z)/2 units, and ##STR12## wherein x has a value of 2, 1 or 0, z has a value of 2, 1 or 0, the sum of x+z has a value greater than 0, the molar ratio of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units to (CH 3 O) z CH 3 SiO.sub.(3-z)/2 units has a value from 1:0.5 to 1:4, and the molar ratio of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units to ##STR13## has a value of from 1:0.85 to 1:3.5; and (b) heating the impregnated textile fabric of (a) to crosslink the fluid organosilicon polymer.
Claim 2
Independent Claim
253 words
A method for imparting durable press characteristics to a cellulosic fiber containing textile fabric, said method comprising: (a) impregnating the textile fabric with a homogeneous composition comprising a volatile liquid carrier and a fluid organosilicon polymer selected from the group consisting of (i) polymers consisting of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units and (CH 3 O) y (CH 3 ) 2 SiO.sub.(2-y)/2 units wherein x has a value of 2, 1 or 0, y has a value of 1 or 0, the sum of x+y has a value greater than 0, and the molar ratio of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units to (CH 3 O) y (CH 3 ) 2 SiO.sub.(2-y)/2 units has a value of from 1:4 to 1:40 and (ii) polymers consisting of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units, (CH 3 O) z CH 3 SiO.sub.(3-z)/2 units, and ##STR12## wherein x has a value of 2, 1 or 0, z has a value of 2, 1 or 0, the sum of x+z has a value greater than 0, the molar ratio of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units to (CH 3 O) z CH 3 SiO.sub.(3-z)/2 units has a value from 1:0.5 to 1:4, and the molar ratio of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units to ##STR13## has a value of from 1:0.85 to 1:3.5; and (b) heating the impregnated textile fabric of (a) to crosslink the fluid organosilicon polymer.
Claim 3
Dependent Claim
33 words
The method of claim 1 wherein the fluid organosilicon polymer consists of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units and (CH 3 O) y (CH 3 ) 2 SiO.sub.(2-y/2 units.
Claim 4
Dependent Claim
32 words
The method of claim 1 wherein the fluid organosilicon polymer consists of (CH 3 O) x C 6 H 5 SiO.sub.(3-x)/2 units, (CH 3 O) z CH 3 SiO.sub.(3-z)/2 units and ##STR14##
Claim 5
Dependent Claim
22 words
The method of claim 1, 2 or 3 wherein the homogeneous composition is an emulsion and the volatile liquid carrier is water.
Claim 6
Dependent Claim
28 words
The method of claim 1, 2 or 3 wherein the homogeneous composition further comprises an amount of a silanol condensation catalyst effective to cure the fluid organosilicon polymer.
Claim 7
Dependent Claim
16 words
The method of claim 5 wherein the silanol condensation catalyst is an organic compound of tin.
Claim 8
Dependent Claim
37 words
The method of claim 1, 2 or 3 wherein the homogeneous composition further comprises from about 2% to about 10% based on the weight of the fluid organosilicon polymer of (CH 3 O) 3 SiCH 3 .
Claim 9
Dependent Claim
15 words
A durable press textile fabric produced by the method of claim 1, 2 or 3.
Claim 10
Dependent Claim
12 words
A durable press textile fabric produced by the method of claim 5.
Claim 11
Dependent Claim
12 words
A durable press textile fabric produced by the method of claim 7.
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) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |