Patent US5093285A successfully refreshed from Google Patents.
US5093285A
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US
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Glass composition for use in glazes or enamels
Assignee: Johnson Matthey PLC
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Filing: 1989-11-06
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Granted: 1992-03-03
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Expires: 2009-11-06
Abstract
Abstract A glass flux composition consisting essentially by weight of 45-65% Bi 2 O 3 , 25-36% SiO 2 , 4-6% B 2 O 3 , 3-6% TiO 2 , 1-3% Na 2 O, 0.5-2% K 2 O, 2-6% Li 2 O, 0-3% Al 2 O 3 , 0-1% ZrO 2 , 0-1% BaO, 0-1% CaO, 0-1% MgO, 0-1% ZnO, 0-3% PbO and 0-0.5% CdO is useful for preparing a glaze or enamel composition especially for application to glass such that the composition is then fired in contact with a mould surface or with another glass surface.
Inventors
- 👤 Johannes J. W. Murkens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:56
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/02; C03C8/00; C03C8/02; C03C2209/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
64 words
A glass flux composition consisting essentially by weight of 45-65% Bi 2 O 3 , 25-36% SiO 2 , 4-6% B 2 O 3 , 3-6% TiO 2 , 1-3% Na 2 O, 0.5-2% K 2 O, 2-6% Li 2 O, 0-3% Al 2 O 3 , 0-1% ZrO 2 , 0-1% BaO, 0-1% CaO, 0-1% MgO, 0-1% ZnO, 0-3% PbO and 0-0.5% CdO.
Claim 2
Dependent Claim
64 words
A glass flux composition consisting essentially by weight of 45-65% Bi 2 O 3 , 25-36% SiO 2 , 4-6% B 2 O 3 , 3-6% TiO 2 , 1-3% Na 2 O, 0.5-2% K 2 O, 2-6% Li 2 O, 0-3% Al 2 O 3 , 0-1% ZrO 2 , 0-1% BaO, 0-1% CaO, 0-1% MgO, 0-1% ZnO, 0-3% PbO and 0-0.5% CdO.
Claim 3
Dependent Claim
66 words
A composition according to claim 1 consisting essentially by weight of 45-65% Bi 2 O 3 , 30-36% SiO 2 , 4-5% B 2 O 3 , 4-6% TiO 2 , 1-3% Na 2 O, 0.5-2% K 2 O, 2-4% Li 2 O, 0-3% Al 2 O 3 , 0-1% ZrO 2 , 0-1% BaO, 0-1% CaO, 0-1% MgO, 0-1% ZnO, 0-3% PbO and 0-0.5% CdO.
Claim 4
Dependent Claim
10 words
A composition according to claim 1 which is a frit.
Claim 5
Dependent Claim
22 words
A glaze or enamel composition consisting essentially by weight of 70-90% of the composition claimed in claim 1 together with 10-30% pigment.
Claim 6
Dependent Claim
20 words
An article bearing on its surface a glaze or enamel composition claimed in claim 4 which has been fired thereon.
Claim 7
Dependent Claim
14 words
A composition according to claim 1 which contains 45-55% Bi 2 O 3 .
Claim 8
Dependent Claim
10 words
A composition according to claim 2 which is a frit.
Claim 9
Dependent Claim
10 words
A composition according to claim 6 which is a frit.
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) | 1995-03-03 | 1995-09-02 | 1996-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-03 | 1999-09-02 | 2000-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-03 | 2003-09-02 | 2004-03-03 | $7700.00 | Window Closed / Lapsed |