Patent US4257924A successfully refreshed from Google Patents.
US4257924A
Expired / Lapsed
US
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Anti-static composition comprising a cationic surfactant, rue oil and propylene glycol
Assignee: Bect Chemical Co
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Filing: 1978-12-06
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Granted: 1981-03-24
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Expires: 1998-12-06
Abstract
Abstract An anti-static compound comprising a complex thermoset combination of a cationic surfactant containing from 8 to 22 carbon atoms, an essential oil and a glycol. Heating a mixture of the cationic surfactant, essential oil and glycol results in a composition wherein the oil bonds directly to the cationic compound with a resinous effect, surrounding the cationic charged particles, thereby prolonging discharge capability. The composition may be applied directly to the surface of materials to be anti-statically treated, or combined with detergents or shampoos to impart the treatment during normal washing, or included in certain polymers during manufacture of the synthetic fibers prior to extrusion. The composition of the invention acts as an anti-static agent possessing increased effectiveness, stability and longevity.
Inventors
- 👤 Richard M. Chester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:37
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D3/00; C11D3/0005; C11D3/0031; D; D06; D06M; D06M13/00; D06M13/10; D06M13/165; D06M13/175; D06M13/322; D06M13/46; D06M13/463
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
35 words
An antistatic composition having prolonged discharge capabilities comprising: a cationic surfactant, rue oil, and propylene glycol, where the rue oil is about 0.1 percent of the composition and the propylene glycol is about 1.0 percent.
Claim 2
Dependent Claim
35 words
An antistatic composition having prolonged discharge capabilities comprising: a cationic surfactant, rue oil, and propylene glycol, where the rue oil is about 0.1 percent of the composition and the propylene glycol is about 1.0 percent.
Claim 3
Dependent Claim
15 words
An antistatic composition according to claim 1 wherein said cationic surfactant is quaternary ammonium compound.
Claim 4
Dependent Claim
17 words
An antistatic composition according to claim 2 wherein said quaternary ammonium compound is dialkyl dimethyl ammonium chloride.
Claim 5
Independent Claim
74 words
The method of preparing an antistatic composition comprising: (a) dissolving about 0.1% by weight of rue oil in about 1.0% by weight of propylene glycol at a temperature of about 100° F.; (b) adding to the rue oil-propylene glycol solution about 98.9% by weight of a cationic surfactant; (c) heating the resulting mixture until clear; and (d) raising the temperature to about 140° to 149° F. for about 10 minutes to thermoset the composition.
Claim 6
Independent Claim
74 words
The method of preparing an antistatic composition comprising: (a) dissolving about 0.1% by weight of rue oil in about 1.0% by weight of propylene glycol at a temperature of about 100° F.; (b) adding to the rue oil-propylene glycol solution about 98.9% by weight of a cationic surfactant; (c) heating the resulting mixture until clear; and (d) raising the temperature to about 140° to 149° F. for about 10 minutes to thermoset the composition.
Claim 7
Dependent Claim
14 words
The method of claim 4 wherein said cationic surfactant is a quaternary ammonium compound.
Claim 8
Dependent Claim
15 words
The method of claim 5 wherein said quaternary ammonium compound is dialkyl dimethyl ammonium chloride.
Claim 9
Dependent Claim
22 words
The method of claim 4, 5 or 6 including the further step of adjusting the pH to between about 7.0 and 7.5.
Claim 10
Independent Claim
63 words
A method of treating carpets, comprising: (a) preparing a composition comprising a cationic surfactant, about 0.1 percent by weight of rue oil and about 1.0 percent by weight of propylene glycol; (b) mixing a predetermined quantity of said composition with a conventional carpet cleaning solution; and (c) washing the carpet with said mixture to effect simultaneous cleaning and imparting of anti-static properties thereto.
Claim 11
Independent Claim
63 words
A method of treating carpets, comprising: (a) preparing a composition comprising a cationic surfactant, about 0.1 percent by weight of rue oil and about 1.0 percent by weight of propylene glycol; (b) mixing a predetermined quantity of said composition with a conventional carpet cleaning solution; and (c) washing the carpet with said mixture to effect simultaneous cleaning and imparting of anti-static properties thereto.
Claim 12
Dependent Claim
14 words
The method of claim 8 wherein said cationic surfactant is a quaternary ammonium compound.
References Cited (Backward Citations)
US4134838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |