Patent US4263371A successfully refreshed from Google Patents.
US4263371A
Expired / Lapsed
US
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Organotin treatment for reducing the reactivity of a glass surface
Assignee: PPG Industries Inc
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Filing: 1979-10-09
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Granted: 1981-04-21
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Expires: 1999-10-09
Abstract
Abstract A method for reducing the surface energy of a glass article by chemisorption of an alkyltin compound at a temperature insufficient to thermally decompose the compound is disclosed.
Inventors
- 👤 Helmut Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:58
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/28; B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/068; B65G49/069
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
54 words
A method for treating a glass surface which comprises contacting the surface with a composition consisting of an alkyltin compound capable of chemisorption by the glass surface at a temperature insufficient to cause thermal decomposition of the alkyltin compound for a time sufficient to allow chemisorption of the alkyltin compound by the glass surface.
Claim 2
Independent Claim
54 words
A method for treating a glass surface which comprises contacting the surface with a composition consisting of an alkyltin compound capable of chemisorption by the glass surface at a temperature insufficient to cause thermal decomposition of the alkyltin compound for a time sufficient to allow chemisorption of the alkyltin compound by the glass surface.
Claim 3
Dependent Claim
14 words
The method according to claim 1, wherein the alkyltin compound is an alkyltin halide.
Claim 4
Dependent Claim
26 words
The method according to claim 2, wherein the alkyltin halide is selected from the group consisting of methyltin trichloride, dimethyltin dichloride, trimethyltin chloride and mixtures thereof.
Claim 5
Dependent Claim
18 words
The method according to claim 1, wherein the glass surface is contacted with a solution of the alkyltin.
Claim 6
Dependent Claim
51 words
A glass article prepared by contacting a glass surface with a composition consisting of an alkyltin compound capable of chemisorption by the glass surface at a temperature insufficient to cause thermal decomposition of the alkyltin compound for a time sufficient to allow chemisorption of the alkytin compound by the glass surface.
Claim 7
Dependent Claim
51 words
A glass article prepared by contacting a glass surface with a composition consisting of an alkyltin compound capable of chemisorption by the glass surface at a temperature insufficient to cause thermal decomposition of the alkyltin compound for a time sufficient to allow chemisorption of the alkytin compound by the glass surface.
Claim 8
Dependent Claim
32 words
The glass article according to claim 5 wherein the glass surface which has chemisorbed the alkyltin is characterized by having a contact angle with a sessile drop of water greater than 30°.
Claim 9
Dependent Claim
17 words
The glass article according to claim 5 wherein the glass surface is contacted with an alkyltin halide.
References Cited (Backward Citations)
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US3005731A
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US3107177A
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US3677814A
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US3827871A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |