US4139660A
Expired / Lapsed
US
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Method for increasing solid surface tension
Assignee: Individual
•
Filing: 1976-05-24
•
Granted: 1979-02-13
•
Expires: 1996-05-24
Abstract
Abstract Method of increasing the surface tension or specific surface energy of normally solid substrates by contacting same with a compound or compounds of certain metals selected from the IVth Group of the Periodic Table, in order to render the substrates permanently wettable to fluids.
Inventors
- 👤 Wladimir Tur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:24
CPC Classifications
C; C11; C11D; C11D1/00; D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/20
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
77 words
A method for increasing the surface tension of a normally solid and normally non-wettable substrate which consists of contacting the surface of the substrate with an aqueous solution or aqueous dispersion containing at least one compound selected from the group consisting of stannous chloride, titanium trichloride, zirconium oxychloride and germanium dichloride, for up to 30 seconds, and removing the excess of the solution or dispersion by thoroughly rinsing the surface of the thus treated substrate with water.
Claim 2
Independent Claim
77 words
A method for increasing the surface tension of a normally solid and normally non-wettable substrate which consists of contacting the surface of the substrate with an aqueous solution or aqueous dispersion containing at least one compound selected from the group consisting of stannous chloride, titanium trichloride, zirconium oxychloride and germanium dichloride, for up to 30 seconds, and removing the excess of the solution or dispersion by thoroughly rinsing the surface of the thus treated substrate with water.
Claim 3
Independent Claim
66 words
A method for increasing the surface tension of a normally solid and normally non-wettable substrate which consists of contacting the surface of the substrate with an aqueous solution or aqueous dispersion containing a mixture of stannous chloride and plumbous acetate, for up to 30 seconds, and removing the excess of the solution or dispersion by thoroughly rinsing the surface of the thus treated substrate with water.
Claim 4
Independent Claim
66 words
A method for increasing the surface tension of a normally solid and normally non-wettable substrate which consists of contacting the surface of the substrate with an aqueous solution or aqueous dispersion containing a mixture of stannous chloride and plumbous acetate, for up to 30 seconds, and removing the excess of the solution or dispersion by thoroughly rinsing the surface of the thus treated substrate with water.
Claim 5
Dependent Claim
13 words
A method according to claim 1, wherein the contact time is 0.5-30 seconds.
Claim 6
Dependent Claim
13 words
A method according to claim 2, wherein the contact time is 0.5-30 seconds.
Claim 7
Dependent Claim
28 words
A method according to claim 1, wherein the total concentration of the compound or compounds in the aqueous solution or aqueous dispersion is 0.1 to 20% by weight.
Claim 8
Dependent Claim
28 words
A method according to claim 1, wherein the total concentration of the compound or compounds in the aqueous solution or aqueous dispersion is 0.5 to 5% by weight.
Claim 9
Dependent Claim
30 words
A method according to claim 2, wherein the total concentration of the stannous chloride and plumbous acetate in the aqueous solution or aqueous dispersion is 0.1 to 20% by weight.
Claim 10
Dependent Claim
30 words
A method according to claim 2, wherein the total concentration of the stannous chloride and plumbous acetate in the aqueous solution or aqueous dispersion is 0.5 to 5% by weight.
Claim 11
Dependent Claim
19 words
The method according to claim 1, wherein the aqueous solution or aqueous dispersion contains stannous chloride and titanium trichloride.
Claim 12
Dependent Claim
19 words
The method according to claim 1, wherein the aqueous solution or aqueous dispersion contains zirconium oxychloride and titanium trichloride.
Claim 13
Dependent Claim
19 words
The method according to claim 1, wherein the aqueous solution or aqueous dispersion contains stannous chloride and zirconium oxychloride.
Claim 14
Dependent Claim
16 words
The method according to claim 1, wherein the aqueous solution or aqueous dispersion contains zirconium oxychloride.
Claim 15
Dependent Claim
16 words
The method according to claim 1, wherein the aqueous solution or aqueous dispersion contains germanium dichloride.
Claim 16
Dependent Claim
16 words
The method according to claim 1, wherein the aqueous solution or aqueous dispersion contains stannous chloride.
References Cited (Backward Citations)
CA802097A
Cited
US1561650A
Cited
US2315259A
Cited
US2602757A
Cited
FR1402310A
Cited
GB1079391A
Cited
DE1519547A1
Cited
US3689292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-12 | 1982-08-14 | 1983-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-12 | 1986-08-14 | 1987-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-12 | 1990-08-14 | 1991-02-13 | $7700.00 | Window Closed / Lapsed |