US4666870A
Expired / Lapsed
US
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Fluoride glasses
Assignee: LE VERRE FLUORE SA ZONE I DU CHAMP MARTIN VERN-SUR-SEICHE
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Filing: 1986-07-08
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Granted: 1987-05-19
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Expires: 2006-07-08
Abstract
Abstract The invention relates to a beryllium free fluoride glass composition used to prepare fluoride glass and the fluoride glass prepared by the composition. The fluoride composition contains only fluoride compounds and does not contain any oxygen atoms.
Inventors
- 👤 Marcel J. Poulain
- 👤 Michel A. Poulain
- 👤 Gwenael A. Maze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/32; C03C3/325
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
41 words
A fluoride glass composition for preparing fluoride glass consisting of: 10-60% LiF 10-20% NaF 0-50% UF 4 , 0-25% ThF 4 , 0-25% BaF, 0-40% ScF 3 , 0-8% YF 3 ; and wherein all the above percentages are mole percent.
Claim 2
Dependent Claim
41 words
A fluoride glass composition for preparing fluoride glass consisting of: 10-60% LiF 10-20% NaF 0-50% UF 4 , 0-25% ThF 4 , 0-25% BaF, 0-40% ScF 3 , 0-8% YF 3 ; and wherein all the above percentages are mole percent.
Claim 3
Dependent Claim
15 words
The composition of claim 1 consisting of: 60% LiF, 10% NaF, 30% UF 4 .
Claim 4
Dependent Claim
15 words
The composition of claim 1 consisting of: 60% LiF, 15% NaF, 25% ThF 4 .
Claim 5
Dependent Claim
14 words
The composition of claim 1 consisting: 30% LiF, 20% NaF, 50% UF 4 .
Claim 6
Dependent Claim
23 words
The composition of claim 1 consisting of: 10% LiF, 17% NaF, 25% BaF 2 , 40% ScF 3 , 8% YF 3 .
Claim 7
Dependent Claim
41 words
A fluoride glass composition for preparing fluoride glass consisting of: 30-50% UF 4 , 0-30% AlF 3 , 0-20% LaF 3 , 0-20% YF 3 , 0-30% ThF 4 , 0-25% NaF and wherein all the above percentages are mole percent.
Claim 8
Dependent Claim
41 words
A fluoride glass composition for preparing fluoride glass consisting of: 30-50% UF 4 , 0-30% AlF 3 , 0-20% LaF 3 , 0-20% YF 3 , 0-30% ThF 4 , 0-25% NaF and wherein all the above percentages are mole percent.
Claim 9
Dependent Claim
19 words
The composition of claim 6 consisting of: 50% UF 4 , 30% AlF 3 , 20% LaF 3 .
Claim 10
Dependent Claim
23 words
The composition of claim 6 consisting of: 30% UF 4 , 20% AlF 3 , 20% YF 3 , 30% ThF 4 .
Claim 11
Dependent Claim
19 words
The composition of claim 6 consisting of: 50% UF 4 , 20% AlF 3 , 30% YF 3 .
Claim 12
Dependent Claim
17 words
The composition of claim 6 consisting of: 50% UF 4 , 25% AlF 3 , 25% NaF.
Claim 13
Dependent Claim
67 words
A fluoride glass composition for preparing fluoride glass consisting of: 20-30% YF 3 , 25-30% AlF 3 , 20-24% BaF 2 , 0-13% MgF 2 , 0-2% CaF 2 , 0-2% KF, 0-2% CeF 3 , 0-25% NaF, 0-30% YbF 3 , 0-20% CeF 4 , 0-20% PbF 4 , 0-20% NbF 4 , 0-20% ThF 4 ; and wherein all the above percentages are mole percent.
Claim 14
Dependent Claim
67 words
A fluoride glass composition for preparing fluoride glass consisting of: 20-30% YF 3 , 25-30% AlF 3 , 20-24% BaF 2 , 0-13% MgF 2 , 0-2% CaF 2 , 0-2% KF, 0-2% CeF 3 , 0-25% NaF, 0-30% YbF 3 , 0-20% CeF 4 , 0-20% PbF 4 , 0-20% NbF 4 , 0-20% ThF 4 ; and wherein all the above percentages are mole percent.
Claim 15
Dependent Claim
23 words
The composition of claim 11 consisting of: 28% YF 3 , 28% AlF 3 , 24% BaF 2 , 20% ThF 4 .
Claim 16
Dependent Claim
21 words
The composition of claim 11 consisting of: 30% YF 3 , 30% AlF 3 , 20% BaF 2 , 20% NaF.
Claim 17
Dependent Claim
31 words
The composition of claim 11 consisting of: 26% YF 3 , 28% AlF 3 , 20% BaF 2 , 15% MgF 2 , 5% NaF, 2% CaF 2 , 2% KF.
Claim 18
Dependent Claim
29 words
The composition of claim 11 consisting of: 30% YF 3 , 30% AlF 3 , 20% BaF 2 , 2% CaF 2 , 5% NaF, 13% MgF 2 .
Claim 19
Dependent Claim
29 words
The composition of claim 11 consisting of: 20% BaF 2 , 20% YF 3 , 25% AlF 3 , 10% ThF 4 , 5% NaF, 20% CeF 4 .
Claim 20
Dependent Claim
29 words
The composition of claim 11 consisting of: 20% BaF 2 , 20% YF 3 , 25% AlF 3 , 10% ThF 4 , 5% NaF, 20% PbF 4 .
Claim 21
Dependent Claim
29 words
The composition of claim 11 consisting of: 20% BaF 2 , 20% YF 3 , 25% AlF 3 , 10% ThF 4 , 5% NaF, 20% NbF 4 .
Claim 22
Dependent Claim
61 words
A fluoride glass composition for preparing fluoride glass consisting of: 5-20% NaF, 5-15% MgF 2 , 20% BaF 2 , 0-50% UF 4 , 0-30% AlF 3 , 0-30% ErF 3 , 0-20% SnF 3 , 0-20% YF 3 , 0-20% TbF 3 , 0-10% GaF 3 , 0-30% InF 3 ; and wherein all the above percentages are mole percent.
Claim 23
Dependent Claim
61 words
A fluoride glass composition for preparing fluoride glass consisting of: 5-20% NaF, 5-15% MgF 2 , 20% BaF 2 , 0-50% UF 4 , 0-30% AlF 3 , 0-30% ErF 3 , 0-20% SnF 3 , 0-20% YF 3 , 0-20% TbF 3 , 0-10% GaF 3 , 0-30% InF 3 ; and wherein all the above percentages are mole percent.
Claim 24
Dependent Claim
21 words
The composition of claim 19 consisting of: 20% NaF, 10% MgF 2 , 20% BaF 2 , 50% UF 4 .
Claim 25
Dependent Claim
25 words
The composition of claim 19 consisting of: 5% NaF, 15% MgF 2 , 20% BaF 2 , 30% AlF 3 , 30% ErF 3 .
Claim 26
Dependent Claim
25 words
The composition of claim 19 consisting of: 5% NaF, 15% MgF 2 , 20% BaF 2 , 30% AlF 3 , 30% YbF 3 .
Claim 27
Dependent Claim
29 words
The composition of claim 19 consisting of: 25% NaF, 5% MgF 2 , 20% BaF 2 , 20% YF 3 , 20% TbF 3 , 10% GaF 3 .
Claim 28
Dependent Claim
25 words
The composition of claim 19 consisting of: 15% NaF, 15% MgF 2 , 20% BaF 2 , 30% AlF 3 , 20% SnF 3 .
Claim 29
Dependent Claim
29 words
The composition of claim 19 consisting of: 20% NaF, 10% MgF 2 , 20% BaF 2 , 10% CaF 2 , 20% YF 3 , 30% InF 3 .
Claim 30
Dependent Claim
27 words
A fluoride glass composition for preparing fluoride glass consisting of: 60% LiF, 35% KF, 5% ThF 4 ; and wherein all the above percentages are mole percent.
Claim 31
Dependent Claim
27 words
A fluoride glass composition for preparing fluoride glass consisting of: 60% LiF, 35% KF, 5% ThF 4 ; and wherein all the above percentages are mole percent.
Claim 32
Dependent Claim
29 words
A fluoride glass composition for preparing fluoride glass consisting of: 45% LiF, 20% BaF 2 , 35% ZrF 4 ; and wherein all the above percentages are mole percent.
Claim 33
Dependent Claim
29 words
A fluoride glass composition for preparing fluoride glass consisting of: 45% LiF, 20% BaF 2 , 35% ZrF 4 ; and wherein all the above percentages are mole percent.
Claim 34
Dependent Claim
33 words
A fluoride glass composition for preparing fluoride glass consisting of: 20% NaF, 10% MgF 2 , 20% YF 3 , 50% UF 4 ; and wherein all the above percentages are mole percent.
Claim 35
Dependent Claim
33 words
A fluoride glass composition for preparing fluoride glass consisting of: 20% NaF, 10% MgF 2 , 20% YF 3 , 50% UF 4 ; and wherein all the above percentages are mole percent.
Claim 36
Dependent Claim
37 words
A fluoride glass composition for preparing fluoride glass consisting of: 15% NaF, 20% BaF 2 , 30% ScF 3 , 20% YF 3 , 15% ThF 4 ; and wherein all the above percentages are mole percent.
Claim 37
Dependent Claim
37 words
A fluoride glass composition for preparing fluoride glass consisting of: 15% NaF, 20% BaF 2 , 30% ScF 3 , 20% YF 3 , 15% ThF 4 ; and wherein all the above percentages are mole percent.
Claim 38
Dependent Claim
47 words
A fluoride glass composition for preparing fluoride glass consisting of: 5% NaF, 2% KF, 15% MgF 2 , 2% CaF 2 , 20% BaF 2 , 28% AlF 3 , 2% CeF 3 , 26% YbF 3 ; and wherein all the above percentages are mole percent.
Claim 39
Dependent Claim
47 words
A fluoride glass composition for preparing fluoride glass consisting of: 5% NaF, 2% KF, 15% MgF 2 , 2% CaF 2 , 20% BaF 2 , 28% AlF 3 , 2% CeF 3 , 26% YbF 3 ; and wherein all the above percentages are mole percent.
Claim 40
Dependent Claim
29 words
A fluoride glass composition for preparing fluoride glass consisting of: 25% NaF, 25% BaF 2 , 50% TiF 4 ; and wherein all the above percentages are mole percent.
Claim 41
Dependent Claim
29 words
A fluoride glass composition for preparing fluoride glass consisting of: 25% NaF, 25% BaF 2 , 50% TiF 4 ; and wherein all the above percentages are mole percent.
Claim 42
Dependent Claim
10 words
A fluoride glass prepared from the composition of claim 1.
Claim 43
Dependent Claim
10 words
A fluoride glass prepared from the composition of claim 6.
Claim 44
Dependent Claim
10 words
A fluoride glass prepared from the composition of claim 11.
Claim 45
Dependent Claim
10 words
A fluoride glass prepared from the composition of claim 19.
Claim 46
Dependent Claim
10 words
A fluoride glass prepared from the composition of claim 26.
References Cited (Backward Citations)
US2511224A
Cited
US2466509A
Cited
US2819977A
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FR2077731A1
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US4141741A
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FR2396981A1
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US4244722A
Cited
US4328318A
Cited
US4308066A
Cited
US4346176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |