Patent US3620803A successfully refreshed from Google Patents.
US3620803A
Expired / Lapsed
US
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Selvage finish compositions and the treatment of resin treated cellulosic fabrics therewith
Assignee: Beaunit Corp
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Filing: 1969-06-24
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Granted: 1971-11-16
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Expires: 1989-06-24
Abstract
Abstract Resin treated cellulosic fabrics having a firm and even selvage finish are prepared by treating the selvage of the resin treated cellulosic fabric with an aqueous emulsion comprising effective amounts of polyvinyl acetate and a low molecular weight alcohol followed by drying of the aqueous emulsion on the resin treated cellulosic fabric. The application of the aqueous emulsion comprising polyvinyl acetate and a low molecular weight alcohol as described above to the selvage of resin treated cellulosic fabrics followed by drying of the emulsion on the fabric has been found to provide uniform and even penetration of the resin treated fabric to give a firm and even selvage finish.
Inventors
- 👤 Robert O Lineberger
- 👤 James S Wiberley
- 👤 Joseph R Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:48
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/16; D06M23/18; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24785; Y10T428/29; Y10T428/2913; Y10T428/2927
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
42 words
An aqueous emulsion as defined in claim 1 wherein the polyvinyl acetate comprises about 10 to 30 percent by weight of the aqueous emulsion and the low molecular weight alcohol comprises about 20 to 60 percent by weight of the aqueous emulsion.
Claim 2
Dependent Claim
17 words
An aqueous emulsion as defined in claim 2 wherein the low molecular weight alcohol is isopropyl alcohol.
Claim 3
Dependent Claim
113 words
A process for the preparation of aqueous emulsions useful in the treatment of selvages of resin treated cellulosic fabrics to provide a firm and even selvage finish thereon which comprises slowly adding a low molecular weight alcohol having the formula ROH wherein R is a hydrocarbon group containing one to four carbon atoms to water under agitation and thereafter slowly adding a polyvinyl acetate emulsion to the resulting alcohol-water mixture under agitation, each ingredient being used in amounts sufficient to provide a final aqueous emulsion composition comprising from about 5 to 35 percent by weight of polyvinyl acetate and from about 15 to 70 percent by weight of the low molecular weight alcohol.
Claim 4
Dependent Claim
79 words
A process for providing a firm and even selvage finish on a resin treated cellulosic fabric which comprises treating the selvage of said fabric with an aqueous emulsion comprising a polyvinyl acetate and a low molecular weight alcohol and thereafter drying the fabric, each ingredient present in the emulsion in an amount sufficient to provide for penetration of the fabric so as to provide an even and firm coating or film upon the selvage of the fabric after drying.
Claim 5
Dependent Claim
92 words
A process for providing a firm and even selvage finish on a resin treated cellulosic fabric which comprises treating the selvage of said fabric with an aqueous emulsion comprising from about 5 to 35 percent by weight of a polyvinyl acetate from about 15 to 70 percent by weight of a low molecular weight alcohol having a formula ROH wherein R is a hydrocarbon group containing about one to four carbon atoms and thereafter drying the fabric to provide a firm and even coating or film on the selvage of the fabric.
Claim 6
Dependent Claim
38 words
The process as defined in claim 6 wherein the aqueous emulsion comprises from about 10 to 30 percent by weight of polyvinyl acetate and from about 20 to 60 percent by weight of the low molecular weight alcohol.
Claim 7
Dependent Claim
16 words
The process as defined in claim 7 wherein the low molecular weight alcohol is isopropyl alcohol.
Claim 8
Dependent Claim
20 words
A resin treated cellulosic fabric having a firm and even coating comprising polyvinyl acetate uniformly deposited upon the selvage thereof.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |