US4038027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic textile materials having improved soil release and stain resistance properties
Assignee: Bibb Co
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Filing: 1975-07-28
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Granted: 1977-07-26
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Expires: 1995-07-28
Abstract
Abstract Soil release and stain resistance properties of cellulosic textile materials are improved by reacting a cellulosic textile material with a water-soluble synthetic polymer acid or anhydride. After impregnating the cellulosic material with a synthetic polymer acid or anhydride and an esterification catalyst, the impregnated material is dried and subsequently cured in order that the polymer may react with the cellulosic material in the presence of the esterification catalyst. The material is then washed to yield the finished product. This procedure is applicable to fibers, yarns and manufactured cloths of various hydroxyl-containing polymers such as cotton, cotton-containing materials and blends of cellulosic materials with various synthetics such as polyesters.
Inventors
- 👤 John A. Kearney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:06
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
146 words
A process for imparting improved soil release and stain resistance properties to cellulosic textile materials which comprises: a. impregnating a cellulose-containing textile material with a solution of a water-soluble synthetic polymer acid or anhydride and an esterification catalyst said polymer having the recurring unit: ##STR3## wherein R 1 is hydrogen or methoxy; R 2 is hydrogen or an alkyl of 1 to 4 carbons; and provided R 1 and R 2 are not simultaneously hydrogen and when R 1 is methoxy, R 2 is hydrogen; b. drying the impregnated material at from room temperature to about 300° F.; c. curing the dryed impregnated material at a temperature of from about 250° F.(25)F. to about 410° F for a period of at least 15 seconds and sufficient to react said polymer with said cellulose-containing textile material; and d. washing the cured material to remove excess unreacted polymer.
Claim 2
Dependent Claim
146 words
A process for imparting improved soil release and stain resistance properties to cellulosic textile materials which comprises: a. impregnating a cellulose-containing textile material with a solution of a water-soluble synthetic polymer acid or anhydride and an esterification catalyst said polymer having the recurring unit: ##STR3## wherein R 1 is hydrogen or methoxy; R 2 is hydrogen or an alkyl of 1 to 4 carbons; and provided R 1 and R 2 are not simultaneously hydrogen and when R 1 is methoxy, R 2 is hydrogen; b. drying the impregnated material at from room temperature to about 300° F.; c. curing the dryed impregnated material at a temperature of from about 250° F.(25)F. to about 410° F for a period of at least 15 seconds and sufficient to react said polymer with said cellulose-containing textile material; and d. washing the cured material to remove excess unreacted polymer.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein said textile material is cotton.
Claim 4
Dependent Claim
16 words
The process of claim 1, wherein said textile material is a blend containing cotton or rayon.
Claim 5
Dependent Claim
17 words
The process of claim 1, wherein said textile material is a blend containing cotton and a polyester.
Claim 6
Dependent Claim
18 words
The process of claim 1, wherein said textile material is in the form of a cloth or sheeting.
Claim 7
Dependent Claim
15 words
The process of claim 1, wherein textile material is in the form of a fiber.
Claim 8
Dependent Claim
16 words
The process of claim 1, wherein said textile material is in the form of a yarn.
Claim 9
Dependent Claim
19 words
The process of claim 1, wherein the drying step is conducted for about 30 seconds to about 1 hour.
Claim 10
Dependent Claim
19 words
The process of claim 1, wherein the curing step is conducted for about 15 seconds to about 5 minutes.
Claim 11
Dependent Claim
18 words
The process of claim 1, wherein said copolymer has a molecular weight of about 1000 to about 100,000.
Claim 12
Dependent Claim
27 words
The process of claim 1 wherein a solution having a concentration of about 2% to 10% by weight of said copolymer is applied to the textile material.
Claim 13
Dependent Claim
18 words
The process of claim 1, wherein an aqueous solution of said copolymer is applied to the textile material.
Claim 14
Dependent Claim
104 words
A process for imparting improved soil release and stain resistance properties to cellulosic textile materials which comprises: a. impregnating a cellulose containing textile material with a solution of a water-soluble synthetic copolymer of methyl vinyl ether and maleic acid or anhydride in the presence of an esterification catalyst; b. drying the impregnated material at from room temperature to about 300° F.; c. curing the dryed impregnated material at a temperature of from about 250° F. to about 410° F. for a period of time sufficient to react said copolymer with said textile material; and d. washing the cured material to remove excess unreacted polymer.
Claim 15
Dependent Claim
104 words
A process for imparting improved soil release and stain resistance properties to cellulosic textile materials which comprises: a. impregnating a cellulose containing textile material with a solution of a water-soluble synthetic copolymer of methyl vinyl ether and maleic acid or anhydride in the presence of an esterification catalyst; b. drying the impregnated material at from room temperature to about 300° F.; c. curing the dryed impregnated material at a temperature of from about 250° F. to about 410° F. for a period of time sufficient to react said copolymer with said textile material; and d. washing the cured material to remove excess unreacted polymer.
Claim 16
Dependent Claim
16 words
The process according to claim 13 wherein said textile material is cotton or a blend thereof.
Claim 17
Dependent Claim
18 words
The process according to claim 14 wherein said copolymer has a molecular weight of from 1000 to 100,000.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |