US4698259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of oxonated poly(alkylene oxides) as surface treatment agents
Assignee: Individual
•
Filing: 1985-08-21
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Granted: 1987-10-06
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Expires: 2005-08-21
Abstract
Abstract An oxonated poly(alkylene oxide) substantially devoid of hydrocarbon chains of 5 or more carbon atoms is used to treat substances bearing negative electrostatic charges, so as to reduce such charges without rendering the substance hydrophobic. In this manner static electricity can be reduced in textiles, paper or plastic film; glass or glass fibers can be lubricated; wood pulp can be debonded; anti-self sizing or water-dispersible paper can be made; clays, pigments and other minerals can be hydrophilized; bitumen can be recovered from oil or tar sands; and petroleum can be recovered from underground wells by secondary or tertiary recovery techniques.
Inventors
- 👤 Laurence R. B. Hervey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:11
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/53; C; C03; C03C; C03C25/00; C03C25/10; C03C25/1095; C09; C09C; C09C3/00; C09C3/10; C09K; C09K23/00; C09K23/42; C10; C10C; C10C3/00; C10C3/007; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/198; C10L1/1985; C10M; C10M145/00; C10M145/18; C10M145/24; C10M145/26; C01; C01P; C01P2006/00; C01P2006/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2958; Y10T428/2964; Y10T428/2967; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T442/00; Y10T442/20; Y10T442/2418
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
96 words
A method of treating a solid substance that is substantially insoluble in water and which bears a negative electrostatic charge when it is wet with water, so as to reduce the negative charge without rendering the substance hydrophobic, which comprises contacting the substance with an acidic, aqueous solution of a poly(alkylene oxide) in which a sufficient number of the ether oxygen atoms have been oxonated with a Lewis acid to cause the poly(alkylene oxide) to adhere to the substance, said poly(alkylene oxide) being substantially devoid of substituents having hydrocarbon chains of 5 or more carbon atoms.
Claim 2
Independent Claim
96 words
A method of treating a solid substance that is substantially insoluble in water and which bears a negative electrostatic charge when it is wet with water, so as to reduce the negative charge without rendering the substance hydrophobic, which comprises contacting the substance with an acidic, aqueous solution of a poly(alkylene oxide) in which a sufficient number of the ether oxygen atoms have been oxonated with a Lewis acid to cause the poly(alkylene oxide) to adhere to the substance, said poly(alkylene oxide) being substantially devoid of substituents having hydrocarbon chains of 5 or more carbon atoms.
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein at least about 0.05 percent of the ether oxygen atoms have been oxonated with a Lewis acid.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein the poly(alkylene oxide) has a weight average molecular weight in the range of about 200 to 300,000.
Claim 5
Dependent Claim
20 words
The method of claim 3 wherein the alkylene groups of the poly(alkylene oxide) have 1 to 3 carbon atoms each.
Claim 6
Dependent Claim
27 words
The method of claim 4 wherein the Lewis acid is selected from the group consisting of protonic acids and the ammonium and metal salts of protonic acids.
Claim 7
Dependent Claim
10 words
The method of claim 1 wherein the substance is glass.
Claim 8
Independent Claim
64 words
A method of lubricating glass fibers, which comprises wetting the fibers with an acidic aqueous solution of a poly(alkylene oxide) in which a sufficient number of the ether oxygen atoms have been oxonated with a Lewis acid to cause the poly(alkylene oxide) to adhere to the fibers, said poly(alkylene oxide) being substantially devoid of substituents having hydrocarbon chains of 5 or more carbon atoms.
Claim 9
Independent Claim
64 words
A method of lubricating glass fibers, which comprises wetting the fibers with an acidic aqueous solution of a poly(alkylene oxide) in which a sufficient number of the ether oxygen atoms have been oxonated with a Lewis acid to cause the poly(alkylene oxide) to adhere to the fibers, said poly(alkylene oxide) being substantially devoid of substituents having hydrocarbon chains of 5 or more carbon atoms.
Claim 10
Dependent Claim
57 words
The method of claim 7 wherein the poly (alkylene oxide) has a weight average molecular weight in the range of about 200 to 300,000, the alkylene groups have 1 to 3 carbon atoms each, and the solution has a concentration of at least about 0.05 percent of the poly(alkylene oxide), based on the weight of the water.
Claim 11
Dependent Claim
54 words
The method of claim 8 wherein the Lewis acid is selected from the group consisting of protonic acids and the ammonium and metal salts of protonic acids, the solution has a pH in the range of about 1 to 8, and at least about 0.05 percent of the ether oxygen atoms have been oxonated.
Claim 12
Dependent Claim
19 words
The method of claim 9 wherein the Lewis acid is hydrochloric acid and the poly(alkylene oxide) is poly(ethylene oxide).
Claim 13
Dependent Claim
12 words
Glass fibers that have been lubricated by the method of claim 7.
Claim 14
Dependent Claim
12 words
Glass fibers that have been lubricated by the method of claim 8.
Claim 15
Dependent Claim
12 words
Glass fibers that have been lubricated by the method of claim 9.
Claim 16
Dependent Claim
12 words
Glass fibers that have been lubricated by the method of claim 10.
Claim 17
Dependent Claim
23 words
The method of claim 6 wherein at least about 0.05 percent of the ether oxygen atoms have been oxonated with a Lewis acid.
Claim 18
Dependent Claim
23 words
The method of claim 15 wherein the poly(alkylene oxide) has a weight average molecular weight in the range of about 200 to 300,000.
Claim 19
Dependent Claim
20 words
The method of claim 16 wherein the alkylene groups of the poly(alkylene oxide) have 1 to 3 carbon atoms each.
Claim 20
Dependent Claim
17 words
The method of claim 17 wherein the poly(alkylene oxide) has a molecular weight of at least 400.
Claim 21
Dependent Claim
25 words
The method of claim 18 wherein the solution contains about 0.002 to 10 percent of the poly(alkylene oxide), based on the weight of the water.
Claim 22
Dependent Claim
25 words
The method of claim 19 wherein the solution contains about 0.05 to 5 percent of the poly(alkylene oxide), based on the weight of the water.
Claim 23
Dependent Claim
27 words
The method of claim 20 wherein the Lewis acid is selected from the group consisting of protonic acids and the ammonium and metal salts of protonic acids.
Claim 24
Dependent Claim
13 words
The method of claim 21 wherein the protonic acid is a mineral acid.
Claim 25
Dependent Claim
35 words
The method of claim 20 wherein the Lewis acid is a non-protonic acid selected from the group consisting of aluminum chloride, aluminum fluoride, stannic chloride, and aluminum bromide, and alkali metal and ammonium salts thereof.
Claim 26
Dependent Claim
11 words
Glass that has been treated by the method of claim 6.
Claim 27
Dependent Claim
11 words
Glass that has been treated by the method of claim 15.
Claim 28
Dependent Claim
11 words
Glass that has been treated by the method of claim 17.
Claim 29
Dependent Claim
11 words
Glass that has been treated by the method of claim 18.
Claim 30
Dependent Claim
11 words
Glass that has been treated by the method of claim 22.
Claim 31
Dependent Claim
11 words
Glass that has been treated by the method of claim 23.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-10-05 | 1991-04-06 | 1991-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-05 | 1995-04-06 | 1995-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-05 | 1999-04-06 | 1999-10-06 | $7700.00 | Window Closed / Lapsed |