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US5039631A
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Strengthenable, high non-nd lanthanoid-containing glasses
Assignee: Schott Glass Technologies Inc
•
Filing: 1990-01-11
•
Granted: 1991-08-13
•
Expires: 2010-01-11
Abstract
Abstract A strengthened high lanthanide-containing glass has the composition of, in mole percent -SiO2 54-75 -B2O3 5-17 -Li2O 0-4 -Na2O 3-18 -K2O 0-4 -Al2O3 0-7 -PbO 0-4 -MgO 0-3 -CaO 0-3 -SrO 0-3 -BaO 0-3 -ZnO 0.1-10 -TiO2 0-5 -Ln2O3 3-7 -V2O5 + Cr2O3 + Mn2O3 0-5 -Fe2O3 + CoO + NiO + CuO -As2O3/Sb2O3 0-0.4 - wherein Ln is La, Ce, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and/or Yb.
Inventors
- 👤 David Krashkevich
- 👤 Yuiko T. Hayden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:52
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/095; C03C21/00; C03C21/001; C03C21/002
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
86 words
A high lanthanide, chemically strengthenable glass consisting essentially of, in mole percent ______________________________________
SiO.sub.2 54-75
B.sub.2 O.sub.3 5-17
Li.sub.2 O 0-4
Na.sub.2 O 3-18
K.sub.2 O 0-4
Al.sub.2 O.sub.3 0-7
PbO 0-4
MgO 0-3
CaO 0-3
SrO 0-3
BaO 0-3
ZnO 0.1-10
TiO.sub.2 0-5
Ln.sub.2 O.sub.3 3-7
V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3
0-5
Fe.sub.2 O.sub.3 + CoO + NiO + CuO
As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3
0-0.4
______________________________________ wherein Ln is La, Ce, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and/or Yb.
Claim 2
Dependent Claim
86 words
A high lanthanide, chemically strengthenable glass consisting essentially of, in mole percent ______________________________________
SiO.sub.2 54-75
B.sub.2 O.sub.3 5-17
Li.sub.2 O 0-4
Na.sub.2 O 3-18
K.sub.2 O 0-4
Al.sub.2 O.sub.3 0-7
PbO 0-4
MgO 0-3
CaO 0-3
SrO 0-3
BaO 0-3
ZnO 0.1-10
TiO.sub.2 0-5
Ln.sub.2 O.sub.3 3-7
V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3
0-5
Fe.sub.2 O.sub.3 + CoO + NiO + CuO
As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3
0-0.4
______________________________________ wherein Ln is La, Ce, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and/or Yb.
Claim 3
Dependent Claim
17 words
A glass of claim 1, wherein when Ce is present, the amount thereof is 0-3 mole percent.
Claim 4
Dependent Claim
69 words
A glass of claim 2 consisting essentially of, in mole percent ______________________________________
SiO.sub.2 60-70
B.sub.2 O.sub.3 5-10
Li.sub.2 O 0-3.5
Na.sub.2 O 10-18
K.sub.2 O 0-3.5
Al.sub.2 O.sub.3 0
PbO 0
MgO 0
CaO 0
SrO 0
BaO 0
ZnO 1-7
TiO.sub.2 0
Ln.sub.2 O.sub.3 4-7
V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3
0
Fe.sub.2 O.sub.3 + CoO + NiO + CuO
As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3
0-0.2
______________________________________
Claim 5
Dependent Claim
69 words
A glass of claim 2 consisting essentially of, in mole percent ______________________________________
SiO.sub.2 65-70
B.sub.2 O.sub.3 6-9
Li.sub.2 O 0-3
Na.sub.2 O 15-17
K.sub.2 O 0-3
Al.sub.2 O.sub.3 0
PbO 0
MgO 0
CaO 0
SrO 0
BaO 0
ZnO 2-5
TiO.sub.2 0
Ln.sub.2 O.sub.3 5-7
V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3
0
Fe.sub.2 O.sub.3 + CoO + NiO + CuO
As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3
0-0.2
______________________________________
Claim 6
Dependent Claim
9 words
A glass of claim 2 having a MgO content.
Claim 7
Dependent Claim
10 words
A glass of claim 2 having a TiO 2 content.
Claim 8
Dependent Claim
14 words
A glass of claim 2, wherein the amount of ZnO is 2-5 mole %.
Claim 9
Dependent Claim
14 words
A glass of claim 2, wherein the amount of K 2 O is 0-3.
Claim 10
Dependent Claim
19 words
A glass of claim 2, wherein the amounts of K 2 O, CaO, BaO, SrO, and PbO are 0.
Claim 11
Dependent Claim
15 words
A glass of claim 2 having a chemically strengthened surface layer prepared by ion exchange.
Claim 12
Dependent Claim
15 words
A glass of claim 3 having a chemically strengthened surface layer prepared by ion exchange.
Claim 13
Dependent Claim
15 words
A glass of claim 4 having a chemically strengthened surface layer prepared by ion exchange.
Claim 14
Dependent Claim
15 words
A glass of claim 9 having a chemically strengthened surface layer prepared by ion exchange.
Claim 15
Dependent Claim
87 words
A high lanthanide, chemically strengthenable glass consisting essentially of, in mole percent ______________________________________
SiO.sub.2 54-75
B.sub.2 O.sub.3 5-17
Li.sub.2 O 0-4
Na.sub.2 O 3-18
K.sub.2 O 0-4
Al.sub.2 O.sub.3 0-7
PbO 0-4
MgO 0-3
CaO 0-3
SrO 0-3
BaO 0-3
ZnO 0.1-10
TiO.sub.2 0-5
Ln.sub.2 O.sub.3 3-7
V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3
0-5
Fe.sub.2 O.sub.3 + CoO + NiO + CuO
As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3
0-0.4
CeO.sub.2 0-3
______________________________________ wherein Ln is La, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and/or Yb.
Claim 16
Dependent Claim
87 words
A high lanthanide, chemically strengthenable glass consisting essentially of, in mole percent ______________________________________
SiO.sub.2 54-75
B.sub.2 O.sub.3 5-17
Li.sub.2 O 0-4
Na.sub.2 O 3-18
K.sub.2 O 0-4
Al.sub.2 O.sub.3 0-7
PbO 0-4
MgO 0-3
CaO 0-3
SrO 0-3
BaO 0-3
ZnO 0.1-10
TiO.sub.2 0-5
Ln.sub.2 O.sub.3 3-7
V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3
0-5
Fe.sub.2 O.sub.3 + CoO + NiO + CuO
As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3
0-0.4
CeO.sub.2 0-3
______________________________________ wherein Ln is La, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and/or Yb.
Claim 17
Dependent Claim
71 words
A glass of claim 14 consisting essentially of, in mole percent ______________________________________
SiO.sub.2 60-70
B.sub.2 O.sub.3 5-10
Li.sub.2 O 0-3.5
Na.sub.2 O 10-18
K.sub.2 O 0-3.5
Al.sub.2 O.sub.3 0
PbO 0
MgO 0
CaO 0
SrO 0
BaO 0
ZnO 1-7
TiO.sub.2 0
Ln.sub.2 O.sub.3 4-7
V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3
0
Fe.sub.2 O.sub.3 + CoO + NiO + CuO
As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3
0-0.2
CeO.sub.2 0-2
______________________________________
Claim 18
Dependent Claim
71 words
A glass of claim 14 consisting essentially of, in mole percent ______________________________________
SiO.sub.2 65-70
B.sub.2 O.sub.3 6-9
Li.sub.2 O 0-3
Na.sub.2 O 15-17
K.sub.2 O 0-3
Al.sub.2 O.sub.3 0
PbO 0
MgO 0
CaO 0
SrO 0
BaO 0
ZnO 2-5
TiO.sub.2 0
Ln.sub.2 O.sub.3 5-7
V.sub.2 O.sub.5 + Cr.sub.2 O.sub.3 + Mn.sub.2 O.sub.3
0
Fe.sub.2 O.sub.3 + CoO + NiO + CuO
As.sub.2 O.sub.3 /Sb.sub.2 O.sub.3
0-0.2
CeO.sub.2 0-1.5
______________________________________
Claim 19
Dependent Claim
9 words
A glass of claim 14 having a MgO content.
Claim 20
Dependent Claim
10 words
A glass of claim 14 having a TiO 2 content.
Claim 21
Dependent Claim
14 words
A glass of claim 14, wherein the amount of ZnO is 2-5 mole %.
Claim 22
Dependent Claim
14 words
A glass of claim 14, wherein the amount of K 2 O is 0-3.
Claim 23
Dependent Claim
19 words
A glass of claim 14, wherein the amounts of K 2 O, CaO, BaO, SrO, and PbO are 0.
Claim 24
Dependent Claim
15 words
A glass of claim 14 having a chemically strengthened surface layer prepared by ion exchange.
Claim 25
Dependent Claim
15 words
A glass of claim 15 having a chemically strengthened surface layer prepared by ion exchange.
Claim 26
Dependent Claim
15 words
A glass of claim 16 having a chemically strengthened surface layer prepared by ion exchange.
Claim 27
Dependent Claim
15 words
A glass of claim 21 having a chemically strengthened surface layer prepared by ion exchange.
Claim 28
Dependent Claim
18 words
An optical filter element consisting essentially of a glass of claim 10 in the form of a filter.
Claim 29
Dependent Claim
18 words
A UV-attenuated filter element consisting essentially of a glass of claim 22 in the form of a filter.
Claim 30
Dependent Claim
10 words
A glass of claim 2 containing more than one Ln.
Claim 31
Dependent Claim
10 words
A glass of claim 14 containing more than one Ln.
Claim 32
Dependent Claim
20 words
A glass of claim 2 having a strengthened surface layer prepared by heat treatment of a surface followed by quenching.
Claim 33
Dependent Claim
20 words
A glass of claim 14 having a strengthened surface layer prepared by heat treatment of a surface followed by quenching.
Claim 34
Independent Claim
83 words
A method of chemically strengthening a surface of a silicate glass containing 3-7 mole % of a lanthanide oxide other than Nd 2 O 3 or of a mixture of said lanthanides with each other and/or with Nd 2 O 3 and 3-18 mole % of Na 2 O comprising chemstrengthening such a silicate glass having a composition further consisting essentially of 0.1-10 wt. % ZnO and less than 3 wt. % of each of K 2 O, PbO, CaO, BaO, and SrO.
Claim 35
Independent Claim
83 words
A method of chemically strengthening a surface of a silicate glass containing 3-7 mole % of a lanthanide oxide other than Nd 2 O 3 or of a mixture of said lanthanides with each other and/or with Nd 2 O 3 and 3-18 mole % of Na 2 O comprising chemstrengthening such a silicate glass having a composition further consisting essentially of 0.1-10 wt. % ZnO and less than 3 wt. % of each of K 2 O, PbO, CaO, BaO, and SrO.
Claim 36
Dependent Claim
28 words
A glass of claim 2 further containing up to 3 wt. % of UO 2 in addition to or as a replacement for Ln 2 O 3 .
Claim 37
Dependent Claim
18 words
A glass of claim 1, wherein Ln is Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and/or Yb.
Claim 38
Dependent Claim
12 words
A glass of claim 1, wherein Ln is Ho, Er or Sm.
Claim 39
Dependent Claim
21 words
A glass of claim 1, consisting essentially of, in mole %: ______________________________________
PbO 0-2
CaO 0-2
SrO 0-2
BaO 0-2.
______________________________________
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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) | 1994-08-12 | 1995-02-11 | 1995-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-12 | 1999-02-11 | 1999-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-12 | 2003-02-11 | 2003-08-13 | $7700.00 | Window Closed / Lapsed |