US4138518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile composite and method for making same
Assignee: Reichhold Chemicals Inc
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Filing: 1977-12-06
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Granted: 1979-02-06
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Expires: 1997-12-06
Abstract
Abstract A textile composite is formed utilizing a latex composition formulated with granular starch dispersed uniformly throughout. The composite is subjected to suitable heating or drying conditions to gelatinize substantially all the starch particles thereby imparting to the composite improved cohesiveness.
Inventors
- 👤 Emil G. Sammak
- 👤 Douglas J. Ladish
- 👤 John J. Martin
- 👤 Claire D. LeClaire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:15
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/10; D; D06; D06M; D06M15/00; D06M15/693; D06M17/00; D06M17/02; D06N; D06N7/00; D06N7/0063; D06N7/0071; D06N7/0073; B32B2471/00; B32B2471/02; D06N2203/00; D06N2203/02; D06N2203/024; D06N2203/028; D06N2205/00; D06N2205/10; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986; Y10T428/23993; Y10T442/00; Y10T442/20; Y10T442/2033
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
136 words
A method of forming a textile composite comprising (A) forming an aqueous latex composition consisting essentially of (1) from about 30 to about 90 phrs latex and (2) from about 70 to about 10 phrs granular starch, (B) applying said aqueous latex composition to a fabric substrate to form a textile composite and then (C) treating said textile composite to increase bonding strength by producing uniform and substantially complete gelatinization of the starch at the interface with the substrate as well as throughout the latex composition by increasing the temperature of the textile composite to above the gelatinization temperature of the starch while retaining sufficient moisture in the composition to gelatinize the starch by maintaining said gelatinization temperature until substantially complete gelatinization is produced and finally (D) completely drying the textile composite having improved bonding strength.
Claim 2
Independent Claim
136 words
A method of forming a textile composite comprising (A) forming an aqueous latex composition consisting essentially of (1) from about 30 to about 90 phrs latex and (2) from about 70 to about 10 phrs granular starch, (B) applying said aqueous latex composition to a fabric substrate to form a textile composite and then (C) treating said textile composite to increase bonding strength by producing uniform and substantially complete gelatinization of the starch at the interface with the substrate as well as throughout the latex composition by increasing the temperature of the textile composite to above the gelatinization temperature of the starch while retaining sufficient moisture in the composition to gelatinize the starch by maintaining said gelatinization temperature until substantially complete gelatinization is produced and finally (D) completely drying the textile composite having improved bonding strength.
Claim 3
Dependent Claim
41 words
The method of forming a textile composite according to claim 1 wherein (A) has added at least one starch gelation sensitizer to effect the lowering of the gelatinization temperature of said granular starch to produce substantially complete gelatinization of the starch.
Claim 4
Dependent Claim
27 words
The method of forming a textile composite according to claim 1 wherein (A) has added from about 10 to about 40 phrs starch on a dry basis.
Claim 5
Dependent Claim
25 words
The method of forming a textile composite according to claim 1 wherein (A) has added up to about 800 phrs filler on a dry basis.
Claim 6
Dependent Claim
27 words
The method of forming a textile composite according to claim 4 wherein (A) has added from about 150 to about 600 phrs filler on a dry basis.
Claim 7
Dependent Claim
27 words
The method of forming a textile composite according to claim 2 wherein the amount of starch gelation sensitizer added ranges from about 1 to about 20 phs.
Claim 8
Dependent Claim
19 words
The method of forming a textile composite according to claim 6 wherein the starch gelation sensitizer comprises sodium hydroxide.
Claim 9
Dependent Claim
29 words
The method of forming a textile composite according to claim 7 wherein the sodium hydroxide is added prior to the addition of at least one other starch gelation sensitizer.
Claim 10
Independent Claim
157 words
A method of forming a textile composite comprising (A) forming an aqueous latex composite consisting essentially of (1) from about 40 to about 90 phrs latex, (2) from about 60 to about 10 phrs granular starch (3) from about 1 phs to about 20 phs of at least one starch gelation sensitizer and (4) from about 150 phrs to about 800 phrs filler, (B) applying said aqueous latex composition to a fabric substrate to form a textile composite and then (C) treating said textile composite to increase bonding strength by producing uniform and substantially complete gelatinization of the starch at the interface with the substrate as well as throughout the latex composition by increasing the temperature of the textile composite to above the gelatinization temperature of the starch while retaining sufficient moisture in the composition to gelatinize the starch until substantially complete gelatinization is produced and finally (D) completely drying said textile composite having improved bonding strength.
Claim 11
Independent Claim
157 words
A method of forming a textile composite comprising (A) forming an aqueous latex composite consisting essentially of (1) from about 40 to about 90 phrs latex, (2) from about 60 to about 10 phrs granular starch (3) from about 1 phs to about 20 phs of at least one starch gelation sensitizer and (4) from about 150 phrs to about 800 phrs filler, (B) applying said aqueous latex composition to a fabric substrate to form a textile composite and then (C) treating said textile composite to increase bonding strength by producing uniform and substantially complete gelatinization of the starch at the interface with the substrate as well as throughout the latex composition by increasing the temperature of the textile composite to above the gelatinization temperature of the starch while retaining sufficient moisture in the composition to gelatinize the starch until substantially complete gelatinization is produced and finally (D) completely drying said textile composite having improved bonding strength.
Claim 12
Dependent Claim
28 words
The method of forming a textile composite according to claim 9 wherein the starch gelation sensitizer is selected from the group consisting of sodium hydroxide, urea, and borax.
Claim 13
Dependent Claim
34 words
The method of forming a textile composite, according to claim 1 wherein said fabric substrate comprises a primary layer and a secondary layer bonded together by (A) in the forming of the textile composite.
Claim 14
Dependent Claim
10 words
A textile composite formed by the process of claim 1.
Claim 15
Dependent Claim
10 words
A textile composite formed by the process of claim 11.
Claim 16
Dependent Claim
21 words
The textile composite according to claim 12 wherein (A) has added up to about 800 phrs filler on a dry basis.
Claim 17
Dependent Claim
21 words
The textile composite according to claim 13 wherein (A) has added up to about 800 phrs filler on a dry basis.
References Cited (Backward Citations)
US3779857A
Cited
US4055694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |