US3875321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glassy or crystalline material for phototropic thin layers
Assignee: Schott AG
•
Filing: 1973-04-25
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Granted: 1975-04-01
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Expires: 1993-04-25
Abstract
Abstract Reversible phototropic coatings on substrates such as glass or plastic. The coatings are of the system silver cations, copper cations, and chloride or bromide anions.
Inventors
- 👤 Georg Gliemeroth
- 👤 Lothar Meckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:34
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/02; C03C17/22; C03C3/00; C03C3/32; C03C4/00; C03C4/04; C03C4/06; C09; C09K; C09K9/00; C03C2217/00; C03C2217/20; C03C2217/28; C03C2217/284; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/111; C03C2218/112; C03C2218/15; C03C2218/151; C03C2218/30; C03C2218/32; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S430/00; Y10S430/163
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
AN ARTICLE COMPRISING A SUBSTRATE FORMING A BODY PORTION OF THE ARTICLE AND A REVERSIBLE PHOTOTROPIC COATING ON THE SUBSTRATE, THE COATING COMPRISING A FUSED GLASSY OR CRYSTALLINE COMPOSITION OF THE SYSTEM SILVER CATIONS, AT LAST ONE OF CHLORINE AND BROMINE ANIONS, COPPER CATIONS, THE PROPORTIONS OF THE COMPONENTS OF SAID SYSTEM REFERRED TO A BATCH OF COMPOUNDS OF SILVER AND THE ANION AND OF APPLICATIONS AS THE ANION MELTED TO PRODUCE A FUSED MATERIAL FOR APPLICATION AS THE COATING, BEING ABOUT 5-58 MOLE % SILVER CATIONS, ABOUT 8-85 MOLE % OF SAID ANIONS, AND ABOUT 2-60 MOLE % OF COPPER CATIONS.
Claim 2
Dependent Claim
102 words
AN ARTICLE COMPRISING A SUBSTRATE FORMING A BODY PORTION OF THE ARTICLE AND A REVERSIBLE PHOTOTROPIC COATING ON THE SUBSTRATE, THE COATING COMPRISING A FUSED GLASSY OR CRYSTALLINE COMPOSITION OF THE SYSTEM SILVER CATIONS, AT LAST ONE OF CHLORINE AND BROMINE ANIONS, COPPER CATIONS, THE PROPORTIONS OF THE COMPONENTS OF SAID SYSTEM REFERRED TO A BATCH OF COMPOUNDS OF SILVER AND THE ANION AND OF APPLICATIONS AS THE ANION MELTED TO PRODUCE A FUSED MATERIAL FOR APPLICATION AS THE COATING, BEING ABOUT 5-58 MOLE % SILVER CATIONS, ABOUT 8-85 MOLE % OF SAID ANIONS, AND ABOUT 2-60 MOLE % OF COPPER CATIONS.
Claim 3
Dependent Claim
17 words
Article according to claim 1, said anions being bromine anions in amount of about 15-80 mole %.
Claim 4
Dependent Claim
38 words
Article according to claim 1, said system being Ag , Br , Cu , the proportion of the components of the systems being such that the composition is within the eutectic mixture of the two substance system AgBr-CuBr.
Claim 5
Dependent Claim
25 words
Article according to claim 1, containing at least one of sulfur and tellurium as an agent for shifting the spectral sensitivity of the phototropic coating.
Claim 6
Dependent Claim
16 words
Article according to claim 1, containing at least one of Zr, Si, Mg, Al, and La.
Claim 7
Dependent Claim
30 words
Article according to claim 1, containing at least one of Zr, Si, Mg, Al and La in an amount effective to improve the scratch resistance of the photoropic coating thereon.
Claim 8
Dependent Claim
20 words
Method of producing article according to claim 1, which comprises depositing said coating on the substrate by vacuum vapor deposition.
Claim 9
Dependent Claim
95 words
SOLID, GLASSY OR CRYSTALLINE COMPOSITION WHICH WHEN APPLIED AS A COATING TO A SUBSTRATE HAS REVERSIBLE PHOTOTROPIC PROPERTIES, COMPRISING A FISED COMPOSITION OF THE SYSTEM SILVER CATIONS, AT LEAST ONE OF CHLORINE AND BROMINE ANIONS, COPPER CATIONS, THE PROPORTION OF THE COMPONENTS OF SAID SYSTEM REFERRED TO A BATCH OF COMPOUNDS OF SILVER AND THE ANION AND OF COPPER AND THE ANION MELTED TO PRODUCE A FUSED MATERIAL FOR APPLICATION AS THE COATING, BEING ABOUT 5-58 MOLE % SILVER CATIONS, ABOUT 8-85 MOLE % OF SAID ANIONS, AND ABOUT 2-60 MOLE % OF COPPER CATIONS.
Claim 10
Dependent Claim
95 words
SOLID, GLASSY OR CRYSTALLINE COMPOSITION WHICH WHEN APPLIED AS A COATING TO A SUBSTRATE HAS REVERSIBLE PHOTOTROPIC PROPERTIES, COMPRISING A FISED COMPOSITION OF THE SYSTEM SILVER CATIONS, AT LEAST ONE OF CHLORINE AND BROMINE ANIONS, COPPER CATIONS, THE PROPORTION OF THE COMPONENTS OF SAID SYSTEM REFERRED TO A BATCH OF COMPOUNDS OF SILVER AND THE ANION AND OF COPPER AND THE ANION MELTED TO PRODUCE A FUSED MATERIAL FOR APPLICATION AS THE COATING, BEING ABOUT 5-58 MOLE % SILVER CATIONS, ABOUT 8-85 MOLE % OF SAID ANIONS, AND ABOUT 2-60 MOLE % OF COPPER CATIONS.
Claim 11
Dependent Claim
11 words
Article according to claim 1, the substrate being glass or plastic.
Claim 12
Dependent Claim
9 words
Article according to claim 9, the substrate being translucent.
Claim 13
Dependent Claim
9 words
Article according to claim 9, the substrate being transparent.
Claim 14
Dependent Claim
23 words
Article according to claim 1, said proportions being 12-55 mole % silver, 30-70 mole % of anion, and 2-55 mole % of Cu.
Claim 15
Dependent Claim
14 words
Article according to claim 1, said system being Ag , Br , Cu .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |