US3713878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile finishing process and product produced thereby
Assignee: Milliken Research Corp
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Filing: 1970-11-16
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Granted: 1973-01-30
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Expires: 1990-11-16
Abstract
Abstract This disclosure describes a process for producing vapor transmissible polymer coated textile fabrics, and, in addition, vapor transmissible water resistant fabrics. The vapor transmissible textile fabrics are prepared by applying to the fabric a composition comprising a polymer compound having particular film stiffening temperatures and a wax, and thereafter heating the fabric and the composition to a temperature of at least about 150*C. to volatilize some of the wax. The preparation of the vapor transmissible water resistant fabrics involves an additional and subsequent treatment with a water repellent composition followed by drying and, optionally, curing at a temperature of at least 150*C. These latter fabrics are particularly useful in the preparation of rainwear.
Inventors
- 👤 M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:36
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/02; D06M15/00; D06M15/19; D06M15/21; D06M15/263
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
84 words
The process for preparing vapor transmissible polymer coated textile fabric comprising the steps of a. applying to the fabric a composition comprising a polymer compound having a film stiffening temperature between about -10* and -50*C. and at least about 10 pErcent by weight of the composition of a wax having a melting point in the range of from about 15* to 90*C., and b. heating the fabric and the composition to a temperature of at least about 150*C. to volatilize some of the wax.
Claim 2
Dependent Claim
84 words
The process for preparing vapor transmissible polymer coated textile fabric comprising the steps of a. applying to the fabric a composition comprising a polymer compound having a film stiffening temperature between about -10* and -50*C. and at least about 10 pErcent by weight of the composition of a wax having a melting point in the range of from about 15* to 90*C., and b. heating the fabric and the composition to a temperature of at least about 150*C. to volatilize some of the wax.
Claim 3
Dependent Claim
26 words
The process of claim 1 wherein the fabric and composition are heated to a temperature of from about 150* to 200*C. for at least 1 minute.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein the wax is a paraffin wax.
Claim 5
Dependent Claim
13 words
The process of claim 1 wherein the polymer compound is an acrylic polymer
Claim 6
Dependent Claim
15 words
The process of claim 4 wherein the acrylic polymer is predominantly a butyl acrylate polymer.
Claim 7
Dependent Claim
17 words
The process of claim 1 wherein the textile fabric contains a blend of natural and synthetic fibers.
Claim 8
Dependent Claim
106 words
A process for preparing a vapor transmissible water resistant fabric comprising the steps of a. applying to a textile fabric a composition comprising a polymer compound having a film stiffening temperature between about -10* and -50*C. and at least about 10 percent by weight of the composition of a wax having a melting point in the range of from about 15* to 60*C., b. heating the fabric and the composition to a temperature of at least about 150*C. to volatilize some of the wax, c. treating the fabric with a water repellent composition, and d. drying the fabric at a temperature from about 150* to 210*C.
Claim 9
Dependent Claim
106 words
A process for preparing a vapor transmissible water resistant fabric comprising the steps of a. applying to a textile fabric a composition comprising a polymer compound having a film stiffening temperature between about -10* and -50*C. and at least about 10 percent by weight of the composition of a wax having a melting point in the range of from about 15* to 60*C., b. heating the fabric and the composition to a temperature of at least about 150*C. to volatilize some of the wax, c. treating the fabric with a water repellent composition, and d. drying the fabric at a temperature from about 150* to 210*C.
Claim 10
Dependent Claim
23 words
The process of claim 7 wherein the dried fabric is cured at a temperature of 160* to 210*C. for 1 to 4 minutes.
Claim 11
Dependent Claim
12 words
The process of claim 7 wherein the wax is a paraffin wax.
Claim 12
Dependent Claim
13 words
The process of claim 7 wherein the polymer compound is an acrylic polymer.
Claim 13
Dependent Claim
14 words
The process of claim 7 wherein the water repellent composition is a polymeric fluorocarbon.
References Cited (Backward Citations)
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US2787561A
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US2913427A
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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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |