US4120679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of semi-reflecting glass products
Assignee: Saint Gobain Industries SA
•
Filing: 1977-06-15
•
Granted: 1978-10-17
•
Expires: 1997-06-15
Abstract
Abstract This invention relates to the process of producing semi-reflecting glass products comprising applying to at least a portion of one surface of said product a solution of at least one charge-transfer complex in a non-aqueous organic solvent therefor, said product having been heated prior to said application to a temperature sufficient to evaporate said solvent and cause pyrolysis of said charge-transfer complex, and said charge-transfer complex having the general formula MeX m Y n where Me is a transition element having metallic characteristics, X is at least one beta-diketone ester or alcohol radical having no more than 10 carbon atoms or at least one halogen radical, Y is at least one beta-diketone radical having no more than 10 carbon atoms and differing from X, and m and n equal the valence of Me.
Inventors
- 👤 Daniel Philibert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:37
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
140 words
The process of producing semi-reflecting glass products by forming a metal oxide coating thereon comprising applying to at least a portion of one surface of said product a solution of at least one charge-transfer complex in a non-aqueous organic solvent therefor, said product having been heated prior to said application to a temperature sufficient to evaporate said solvent and cause pyrolysis of said charge-transfer complex, and said charge-transfer complex having the general formula MeX m Y n where Me is a polyvalent heavy metal or metalloid, X is at least one beta-diketone radical having no more than 10 carbon atoms, Y is at least one beta-diketone radical having no more than 10 carbon atoms and differing from X; or one of X or Y can be at least one halogen radical, and m and n equal the valence of Me.
Claim 2
Dependent Claim
140 words
The process of producing semi-reflecting glass products by forming a metal oxide coating thereon comprising applying to at least a portion of one surface of said product a solution of at least one charge-transfer complex in a non-aqueous organic solvent therefor, said product having been heated prior to said application to a temperature sufficient to evaporate said solvent and cause pyrolysis of said charge-transfer complex, and said charge-transfer complex having the general formula MeX m Y n where Me is a polyvalent heavy metal or metalloid, X is at least one beta-diketone radical having no more than 10 carbon atoms, Y is at least one beta-diketone radical having no more than 10 carbon atoms and differing from X; or one of X or Y can be at least one halogen radical, and m and n equal the valence of Me.
Claim 3
Dependent Claim
32 words
The process of claim 1 wherein the glass product is a window, X is at least one acetylacetone radical, and Y is at least one C 6 to C 10 beta-diketone radical.
Claim 4
Dependent Claim
14 words
The process according to claim 2 wherein the beta-diketone radical is the isovaleroylacetone radical.
Claim 5
Dependent Claim
22 words
A process according to claim 3 wherein the metal is trivalent and the radicals comprise an acetylacetone radical and two isovaleroylacetone radicals.
Claim 6
Dependent Claim
22 words
A process according to claim 3 wherein the metal is trivalent and the radicals comprise two acetylacetone radicals and an isovaleroylacetone radical.
Claim 7
Dependent Claim
22 words
The process according to claim 3 wherein the metal is trivalent and the radicals comprise 1.5 acetylacetone radicals and 1.5 isovaleroylacetone radicals.
Claim 8
Dependent Claim
31 words
The process according to claim 1 wherein a mixture of at least two different said complexes is used in solution in a solvent in which each complex, individually, shows little solubility.
Claim 9
Dependent Claim
20 words
The process according to claim 1 wherein the metal is chosen in the group comprising titanium, chromium, iron, and cobalt.
Claim 10
Dependent Claim
23 words
The process of claim 7 in which two complexes are used, one chromium and the other iron, and the solvent is ethyl acetate.
Claim 11
Dependent Claim
11 words
The process of claim 1 wherein the solvent is ethyl acetate.
Claim 12
Dependent Claim
136 words
The process of producing semi-reflecting glass products by forming thereon a coating of at least an oxide of a transition element, comprising applying to at least a portion of one surface of said product a solution of at least one charge transfer complex of said element in a non aqueous solvent therefor, said product having been heated prior to said application to a temperature sufficient to evaporate said solvent and cause pyrolysis of said charge transfer complex and said charge transfer complex having the general formula Me X m Y n , where Me is said transition element, X is a β-diketone, ester or alcohol radical having no more than 10 carbon atoms, Y is a β-diketone, ester or alcohol radical having no more than 10 carbon atoms and differing from X or a halogen radical.
Claim 13
Dependent Claim
136 words
The process of producing semi-reflecting glass products by forming thereon a coating of at least an oxide of a transition element, comprising applying to at least a portion of one surface of said product a solution of at least one charge transfer complex of said element in a non aqueous solvent therefor, said product having been heated prior to said application to a temperature sufficient to evaporate said solvent and cause pyrolysis of said charge transfer complex and said charge transfer complex having the general formula Me X m Y n , where Me is said transition element, X is a β-diketone, ester or alcohol radical having no more than 10 carbon atoms, Y is a β-diketone, ester or alcohol radical having no more than 10 carbon atoms and differing from X or a halogen radical.
References Cited (Backward Citations)
FR1548371A
Cited
US3850679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-16 | 1982-04-17 | 1982-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-16 | 1986-04-17 | 1986-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-16 | 1990-04-17 | 1990-10-17 | $7700.00 | Window Closed / Lapsed |