US3952128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Durable antistatic agent, hydrophobic fibers and fibrous structures having durable antistatic property and method of making same
Assignee: Kao Corp
•
Filing: 1974-11-04
•
Granted: 1976-04-20
•
Expires: 1994-11-04
Abstract
Abstract A novel antistatic agent soluble in organic solvent which can afford durable antistatic property to hydrophobic fibers and fibrous structures is provided. Such antistatic agent consists substantially of a complex compound of a polyvinyl derivative having quaternary ammonium groups in its side chains, its counter anion being substituted with an anionic surfactant containing 2 to 8 ethylene oxide units, an ester-bonded sulfonate, an alkylamidocarboxylic acid salt or an amphoteric surfactant of carboxylic acid type. Hydrophobic fibers and fibrous structures having durable antistatic property, and a process for producing such hydrophobic fibers and fibrous structures also are provided, by utilizing the above antistatic agent.
Inventors
- 👤 Yuzuru Ogata
- 👤 Yukihisa Niimi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:09
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/267; D06M23/00; D06M23/10; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T442/00; Y10T442/20; Y10T442/2418; Y10T442/2434; Y10T442/2459; Y10T442/2861; Y10T442/2885; Y10T442/2893; Y10T442/291; Y10T442/2918
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
73 words
Hydrophobic fibers and fibrous structures having durable antistatic property, which contain deposited thereon from 0.1 to 10% by weight of a complex compound of a polyvinyl derivative having quaternary ammonium groups in its side chains, the counter anion thereof being substituted with at least one member selected from the group consisting of anionic surfactants containing 2 to 8 ethylene oxide units, ester-bonded sulfonates, alkylamidocarboxylic acid salts and amphoteric surfactants of carboxylic acid type.
Claim 2
Dependent Claim
73 words
Hydrophobic fibers and fibrous structures having durable antistatic property, which contain deposited thereon from 0.1 to 10% by weight of a complex compound of a polyvinyl derivative having quaternary ammonium groups in its side chains, the counter anion thereof being substituted with at least one member selected from the group consisting of anionic surfactants containing 2 to 8 ethylene oxide units, ester-bonded sulfonates, alkylamidocarboxylic acid salts and amphoteric surfactants of carboxylic acid type.
Claim 3
Dependent Claim
27 words
The hydrophobic fibers and fibrous structures as claimed in claim 1, in which the amount of the complex compound deposited thereon is 0.2 to 3% by weight.
Claim 4
Dependent Claim
27 words
The hydrophobic fibers and fibrous structures as claimed in claim 1, in which the amount of the complex compound deposited thereon is 0.3 to 1.0% by weight.
Claim 5
Dependent Claim
39 words
The hydrophobic fibers and fibrous structures as claimed in claim 1, in which the hydrophobic fibers and fibrous structure are made of a synthetic polymer selected from the group consisting of polyesters, polyacrylonitriles, polyamides, polyvinyl chlorides, polyethylenes and polypropylenes.
Claim 6
Dependent Claim
58 words
The hydrophobic fibrous structure as claimed in claim 1, in which the hydrophobic fibrous structure is selected from staple fibers, continuous filaments, woven fabrics, knitted fabrics, non-woven fabrics and battings which contains more than 50% by weight of fibers made of a synthetic polymer selected from the group consisting of polyesters, polyacrylonitriles, polyamides, polyvinyl chlorides, polyethylenes and polypropylenes.
Claim 7
Dependent Claim
110 words
Hydrophobic fibers and fibrous structures as claimed in claim 1, in which said complex compound is A. poly(2-methacryloyloxyethyltrialkylammonium) cationic polymer, containing from zero to one moles, per mole of 2-methacryloyloxyethyltrialkylammonium units, of units of a second monomer having the formula ##EQU5## wherein R 4 is H or methyl, and R 5 is alkoxycarbonyl, alkoxy, --CONH 2 , --COOH, --CN or --C 6 H 5 , the anion of said polymer having been replaced by, B. counter anion of at least one surfactant selected from the group consisting of anionic surfactants containing 2 to 8 ethylene oxide units, ester-bonded sulfonates, alkylamidocarboxylic acid salts and amphoteric surfactants of the carboxylic acid type.
Claim 8
Dependent Claim
149 words
A process for producing a hydrophobic fibrous structure having a durable antistatic property, which comprises applying to a fibrous structure an organic solvent solution consisting of 0.05 to 10% by weight of a complex compound of a polyvinyl derivative having quaternary ammonium groups in its side chains, the counter anion thereof being substituted with at least one member selected from the group consisting of anionic surfactants containing 2 to 8 ethylene oxide units, ester-bonded sulfonates, alkylamidocarboxylic acid salts and amphoteric surfactants of carboxylic acid type, 0.05 to 20% by weight of an alcohol and more than 70% by weight of at least one organic solvent selected from the group consisting of hydrocarbons, halogenated hydrocarbons, ethers, ketones and esters, the weight ratio of said alcohol to said complex compound being more than 0.2/1, whereby to deposit on the fibrous structure from 0.1 to 10% by weight of said complex compound.
Claim 9
Dependent Claim
149 words
A process for producing a hydrophobic fibrous structure having a durable antistatic property, which comprises applying to a fibrous structure an organic solvent solution consisting of 0.05 to 10% by weight of a complex compound of a polyvinyl derivative having quaternary ammonium groups in its side chains, the counter anion thereof being substituted with at least one member selected from the group consisting of anionic surfactants containing 2 to 8 ethylene oxide units, ester-bonded sulfonates, alkylamidocarboxylic acid salts and amphoteric surfactants of carboxylic acid type, 0.05 to 20% by weight of an alcohol and more than 70% by weight of at least one organic solvent selected from the group consisting of hydrocarbons, halogenated hydrocarbons, ethers, ketones and esters, the weight ratio of said alcohol to said complex compound being more than 0.2/1, whereby to deposit on the fibrous structure from 0.1 to 10% by weight of said complex compound.
Claim 10
Dependent Claim
26 words
The process as claimed in claim 7, in which the concentration of said complex compound in the organic solvent solution is 0.2 to 3.0% by weight.
Claim 11
Dependent Claim
26 words
The process as claimed in claim 7, in which the concentration of said complex compound in the organic solvent solution is 0.3 to 1.0% by weight.
Claim 12
Dependent Claim
19 words
The process as claimed in claim 7, in which the alcohol is selected from ethyl alcohol and isopropyl alcohol.
Claim 13
Dependent Claim
25 words
The process as claimed in claim 7, in which the concentration of the alcohol in the organic solvent solution is 0.2 to 6% by weight.
Claim 14
Dependent Claim
25 words
The process as claimed in claim 7, in which the concentration of the alcohol in the organic solvent solution is 0.3 to 2% by weight.
Claim 15
Dependent Claim
34 words
The process as claimed in claim 7, in which the weight ratio of the alcohol to the complex compound is 0.5 to 3.0 parts of the alcohol to 1 part of the complex compound.
Claim 16
Dependent Claim
34 words
The process as claimed in claim 7 in which the weight ratio of the alcohol to the complex compound is 1 to 20 parts of the alcohol to 1 part of the complex compound.
Claim 17
Dependent Claim
16 words
The process as claimed in claim 7, in which the organic solvent is a halogenated hydrocarbon.
Claim 18
Dependent Claim
22 words
The process as claimed in claim 15, in which the halogenated hydrocarbon is selected from the group of methylchloroform, trichloroethylene and perchloroethylene.
Claim 19
Dependent Claim
26 words
The process as claimed in claim 7, in which the concentration of the organic solvent in the organic solvent solution is 92 to 99.6% by weight.
Claim 20
Dependent Claim
22 words
The process as claimed in claim 7, in which the concentration of the organic solvent solution is 97 to 99.4% by weight.
Claim 21
Dependent Claim
107 words
A process as claimed in claim 7, in which said complex compound is A. poly(2-methacryloyloxyethyltrialkylammonium) cationic polymer, containing from zero to one moles, per mole of 2-methacryloyloxyethyltrialkylammonium units, of units of a second monomer having the formula ##EQU6## wherein R 4 is H or methyl, and R 5 is alkoxycarbonyl, alkoxy, --CONH 2 , --COOH, --CN or --C 6 H 5 , the anion of said polymer having been replaced by, B. counter anion of at least one surfactant selected from the group consisting of anionic surfactants containing 2 to 8 ethylene oxide units, ester-bonded sulfonates, alkylamidocarboxylic acid salts and amphoteric surfactants of the carboxylic acid type.
References Cited (Backward Citations)
US3206328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-20 | 1979-10-20 | 1980-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-20 | 1983-10-20 | 1984-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-20 | 1987-10-20 | 1988-04-20 | $7700.00 | Window Closed / Lapsed |