US4164535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic textile materials
Assignee: Manufacture de Produits Chimiques Protex SARL
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Filing: 1977-10-18
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Granted: 1979-08-14
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Expires: 1997-10-18
Abstract
Abstract Textile materials are made with a binder to which is added an alkylene-urethane thermosensitive copolymer of the formula:
Inventors
- 👤 Georges Veaute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:14
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/587; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/2815; C08G18/283; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; D06M2200/00; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2418; Y10T442/2459
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
122 words
In a method of making a textile material wherein textile fibers are bonded by a a thermally activatable binder, the improvement which comprises rendering the textile material antistatic by adding to the binder an alkylene-urethane thermosensitive copolymer of the formula: (O═C═N).sub.x --R--[--NH--CO--O--(--C.sub.n H.sub.2n --O--).sub.p --R'].sub.y wherein R is an aliphatic or aromatic moiety which contains a biuret, urethane or isocyanate group; R' is hydrogen, C 1 to c 8 straight or branched chain alkyl, aryl or alklyaryl; x is between 0 and 1 inclusive; y is greater than 2; n has a value of 1 to 4 inclusive; and p is greater than 5; and controlling the pH of the binder upon thermal activation thereof so as to be at most 5.5.
Claim 2
Dependent Claim
122 words
In a method of making a textile material wherein textile fibers are bonded by a a thermally activatable binder, the improvement which comprises rendering the textile material antistatic by adding to the binder an alkylene-urethane thermosensitive copolymer of the formula: (O═C═N).sub.x --R--[--NH--CO--O--(--C.sub.n H.sub.2n --O--).sub.p --R'].sub.y wherein R is an aliphatic or aromatic moiety which contains a biuret, urethane or isocyanate group; R' is hydrogen, C 1 to c 8 straight or branched chain alkyl, aryl or alklyaryl; x is between 0 and 1 inclusive; y is greater than 2; n has a value of 1 to 4 inclusive; and p is greater than 5; and controlling the pH of the binder upon thermal activation thereof so as to be at most 5.5.
Claim 3
Dependent Claim
20 words
The improvement defined in claim 1 wherein R is ##STR6## d is between 2.4 and 2.8, and R' is butyl.
Claim 4
Dependent Claim
16 words
The improvement defined in claim 1 wherein the pH of the binder is at most 4.5.
Claim 5
Dependent Claim
16 words
The improvement defined in claim 3 wherein the pH of the binder is at most 4.
Claim 6
Dependent Claim
30 words
The improvement defined in claim 3 wherein the percentage of the alkylene-urethane thermosensitive copolymer expressed in dry weight of the total amount of the binder is between 0.1 and 5%.
Claim 7
Dependent Claim
30 words
The improvement defined in claim 5 wherein the percentage of the alkylene-urethane thermosensitive copolymer expressed in dry weight of the total amount of the binder is between 0.2 and 2%.
Claim 8
Dependent Claim
65 words
The improvement defined in claim 1 wherein the binder comprises: between 10 and 25% dry weight of a latex thermoplastic containing a hydrophilic group; between 5 and 15% of the latex of a thermohardenable aminoplast-containing resin; and between 10 and 20% of the latex of a polymerization catalyst for the thermohardenable resin selected from the group consisting of ammonium salts, amine salts and metal salts.
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) | 1982-08-13 | 1983-02-12 | 1983-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-13 | 1987-02-12 | 1987-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-13 | 1991-02-12 | 1991-08-14 | $7700.00 | Window Closed / Lapsed |