EP0321297A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Lead-free U.V. absorbing glass
Assignee: Vibrantz Corp
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Filing: 1988-12-16
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Granted: —
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Expires: 2008-12-16
Abstract
Abstract The present invention relates to an improved U.V. absorbing glass composition comprising from about 75 to about 98 parts by weight of a lead oxide free base glass having dissolved therein from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides; and to an ink composition comprising from about 15 to about 25% by weight vehicle, from about 8 to about 16% by weight a ceramic pigment, and from about 59 to about 77% by weight of said U.V. absorbing glass composition.
Inventors
- 👤 Gordon J. Roberts
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 11:07
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/08; C03C8/00; C03C8/14; C03C3/00; C03C3/04; C03C3/062; C03C3/064; C03C3/066; C03C3/076; C03C3/089; C03C3/091; C03C3/093; C03C4/085
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
66 words
An improved U.V. absorbing glass composition comprising from about 75 to about 98 parts by weight of a lead oxide free base glass and from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides.
Claim 2
Dependent Claim
66 words
An improved U.V. absorbing glass composition comprising from about 75 to about 98 parts by weight of a lead oxide free base glass and from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides.
Claim 3
Dependent Claim
116 words
The U.V. absorbing glass composition of claim 1 wherein said base glass contains in part by weight based on 100 parts by weight of the base glass from about 19 to about 45 parts SiO₂, from about 20 to about 33 parts B₂O₃, from about 8 to about 15 parts alkali metal oxide, from about 0 to about 35 parts zinc oxide, from about 0 to about 10 parts zirconium dioxide, from about 0 to about 6 parts aluminum oxide, from about 0 to about 3 parts barium oxide, from about 0 to about 8 parts P₂O₅, from about 0 to about 6 parts La₂O₃, and from about 2 to about 10 parts of added fluorine.
Claim 4
Dependent Claim
142 words
The U.V. absorbing glass composition of claim 1 wherein said glass contains in parts by weight based on 100 parts by weight of base glass from about 25 to about 38 parts SiO₂, from about 22 to about 30 parts B₂O₃, from about 0 to about 8 parts ZrO₂, from about 0 to about 5 parts Al₂O₃, from about 9 to about 12 parts alkali metal oxide, from about 8 to about 21 parts Zno, from about 0 to about 3 parts BaO, from about 2 to about 4 parts MoO₃, from about 1 to about 5 parts Fe₂O₃, from about 1 to about 4 parts CoO, from about 0 to about 3 parts TiO₂, from about 0 to about 4 parts CaO, from about 0 to about 5 parts La₂O₃ and from about 2 to about 10 parts of added fluorine.
Claim 5
Dependent Claim
23 words
The glass composition of claim 1 wherein said glass also contains from about 8% to about 16% by weight of a ceramic pigment.
Claim 6
Dependent Claim
23 words
The glass composition of claim 3 wherein said glass also contains from about 8% to about 16% by weight of a ceramic pigment.
Claim 7
Dependent Claim
43 words
The glass composition of claim 1 wherein said glass corresponds to the following oxide composition: Oxide Percent by Weight SiO₂ 36 B₂O₃ 24 ZrO₂ 6 Na₂O 6.71 K₂O 3.29 ZnO 10 BaO 2 MoO₃ 4 Fe₂O₃ 2 CoO 2 CeO₂ 4 F₂ 4
Claim 8
Dependent Claim
45 words
The glass composition of claim 1 wherein said glass corresponds to the following oxide composition: Oxide Percent by Weight SiO₂ 28 B₂O₃ 28 Al₂O₃ 3 Na₂O 5.06 K₂O 4.94 Li₂O 1.0 ZnO 17.5 MoO₃ 4 Fe₂O₃ 2.5 CoO 1.5 CeO₂ 4 MnO₂ 0.5 F₂ 6
Claim 9
Dependent Claim
23 words
The glass composition of claim 6 wherein said glass also contains from about 8% to about 16% by weight of a ceramic pigment.
Claim 10
Dependent Claim
23 words
The glass composition of claim 7 wherein said glass also contains from about 8% to about 16% by weight of a ceramic pigment.
Claim 11
Dependent Claim
95 words
An ink composition comprising from about 15 to about 25% by weight vehicle, from about 8 to about 16% by weight pigment, and from about 59 to about 77% by weight glass frit, said glass frit comprising from about 75 to about 98 parts by weight of a lead free base glass and from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides.
Claim 12
Dependent Claim
95 words
An ink composition comprising from about 15 to about 25% by weight vehicle, from about 8 to about 16% by weight pigment, and from about 59 to about 77% by weight glass frit, said glass frit comprising from about 75 to about 98 parts by weight of a lead free base glass and from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides.
Claim 13
Dependent Claim
114 words
The ink composition of claim 10 wherein said base glass contains in part by weight based on 100 parts by weight of the base glass from about 19 to about 45 parts SiO₂, from about 20 to about 33 parts B₂O₃, from about 8 to about 15 parts alkali metal oxide, from about 0 to about 35 parts zinc oxide, from about 0 to about 10 parts zirconium dioxide, from about 0 to about 6 parts aluminum oxide, from about 0 to about 3 parts barium oxide, from about 0 to about 8 parts P₂O₅, from about 0 to about 6 parts La₂O₃, and from about 2 to about 10 parts of added fluorine.
Claim 14
Dependent Claim
140 words
The ink composition of claim 10 wherein said glass contains in parts by weight based on 100 parts by weight of base glass from about 25 to about 38 parts SiO₂, from about 22 to about 30 parts B₂O₃, from about 0 to about 8 parts ZrO₂, from about 0 to about 5 parts Al₂O₃, from about 9 to about 12 parts alkali metal oxide, from about 8 to about 21 parts ZnO, from about 0 to about 3 parts BaO, from about 2 to about 4 parts MoO₃, from about 1 to about 5 parts Fe₂O₃, from about 1 to about 4 parts CoO, from about 0 to about 3 parts TiO₂, from about 0 to about 4 parts CaO, from about 0 to about 5 parts La₂O₃ and from about 2 to about 10 parts of added fluorine.
Claim 15
Dependent Claim
47 words
The ink composition of claim 10 wherein said vehicle comprises based on the weight of said vehicle, from about 77 to about 84% by weight pine oil, from about 15 to about 20% by weight acrylic resin and from about 1 to about 3% by weight surfactant.
Claim 16
Dependent Claim
44 words
The ink composition of claim 10 wherein said base glass corresponds to the following oxide composition: Oxide Percent by Weight SiO₂ 36 B₂O₃ 24 ZrO₂ 6 Na₂O 6.71 K₂O 3.29 ZnO 10 BaO 2 MoO₃ 4 Fe₂O₃ 2 CoO 2 CeO₂ 4 F₂ 4
Claim 17
Dependent Claim
44 words
The ink composition of claim 13 wherein said base glass corresponds to the following oxide composition: Oxide Percent by Weight SiO₂ 36 B₂O₃ 24 ZrO₂ 6 Na₂O 6.71 K₂O 3.29 ZnO 10 BaO 2 MoO₃ 4 Fe₂O₃ 2 CoO 2 CeO₂ 4 F₂ 4
Claim 18
Dependent Claim
46 words
The glass composition of claim 10 wherein said base glass corresponds to the following oxide composition: Oxide Percent by Weight SiO₂ 28 B₂O₃ 28 Al₂O₃ 3 Na₂O 5.06 K₂O 4.94 Li₂O 1.0 ZnO 17.5 MoO₃ 4 Fe₂O₃ 2.5 CoO 1.5 CeO₂ 4 MnO₂ 0.5 F₂ 6
Claim 19
Dependent Claim
46 words
The glass composition of claim 13 wherein said base glass corresponds to the following oxide composition: Oxide Percent by Weight SiO₂ 28 B₂O₃ 28 Al₂O₃ 3 Na₂O 5.06 K₂O 4.94 Li₂O 1.0 ZnO 17.5 MoO₃ 4 Fe₂O₃ 2.5 CoO 1.5 CeO₂ 4 MnO₂ 0.5 F₂ 6
Claim 20
Independent Claim
76 words
A method of improving the U.V. absorbing properties for glass composition, the step which comprises admixing with from about 75 to about 98 parts by weight of a lead oxide free base glass and from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides.
Claim 21
Independent Claim
76 words
A method of improving the U.V. absorbing properties for glass composition, the step which comprises admixing with from about 75 to about 98 parts by weight of a lead oxide free base glass and from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides.
Claim 22
Dependent Claim
113 words
The method of claim 18 wherein said base glass contains in part by weight based on 100 parts by weight of the base glass from about 19 to about 45 parts SiO₂, from about 20 to about 33 parts B₂O₃, from about 8 to about 15 parts alkali metal oxide, from about 0 to about 35 parts zinc oxide, from about 0 to about 10 parts zirconium dioxide, from about 0 to about 6 parts aluminum oxide, from about 0 to about 3 parts barium oxide, from about 0 to about 8 parts P₂O₅, from about 0 to about 6 parts La₂O₃, and from about 2 to about 10 parts of added fluorine.
Claim 23
Dependent Claim
139 words
The method of claim 18 wherein said glass contains in parts by weight based on 100 parts by weight of base glass from about 25 to about 38 parts SiO₂, from about 22 to about 30 parts B₂O₃, from about 0 to about 8 parts ZrO₂, from about 0 to about 5 parts Al₂O₃, from about 9 to about 12 parts alkali metal oxide, from about 8 to about 21 parts Zno, from about 0 to about 3 parts BaO, from about 2 to about 4 parts MoO₃, from about 1 to about 5 parts Fe₂O₃, from about 1 to about 4 parts CoO, from about 0 to about 3 parts TiO₂, from about 0 to about 4 parts CaO, from about 0 to about 5 parts La₂O₃ and from about 2 to about 10 parts of added fluorine.
Claim 24
Dependent Claim
110 words
In a composite automotive windshield member bonded to an automobile using a U.V. sensitive adhesive composition, and having a thin composite of U.V. protective enamel fired thereon to screen transmission of U.V. light to said adhesive composition, the improvement which comprises employing as said enamel, a U.V. absorbing glass composition comprising from about 75 to about 98 parts by weight of a lead oxide free base glass and from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides.
Claim 25
Dependent Claim
110 words
In a composite automotive windshield member bonded to an automobile using a U.V. sensitive adhesive composition, and having a thin composite of U.V. protective enamel fired thereon to screen transmission of U.V. light to said adhesive composition, the improvement which comprises employing as said enamel, a U.V. absorbing glass composition comprising from about 75 to about 98 parts by weight of a lead oxide free base glass and from about 2 to about 25 parts by weight of a U.V. additive selected from the group consisting of cerium oxide, manganese oxide, iron oxide, cobalt oxide, copper oxide, vanadium oxide, molybdenum oxide, and mixtures of two or more of said oxides.
Claim 26
Dependent Claim
114 words
The windshield composite of claim 21 wherein said base glass contains in part by weight based on 100 parts by weight of the base glass from about 19 to about 45 parts SiO₂, from about 20 to about 33 parts B₂O₃, from about 8 to about 15 parts alkali metal oxide, from about 0 to about 35 parts zinc oxide, from about 0 to about 10 parts zirconium dioxide, from about 0 to about 6 parts aluminum oxide, from about 0 to about 3 parts barium oxide, from about 0 to about 8 parts P₂O₅, from about 0 to about 6 parts La₂O₃, and from about 2 to about 10 parts of added fluorine.
Claim 27
Dependent Claim
140 words
The windshield composite of claim 21 wherein said glass contains in parts by weight based on 100 parts by weight of base glass from about 25 to about 38 parts SiO₂, from about 22 to about 30 parts B₂O₃, from about 0 to about 8 parts ZrO₂, from about 0 to about 5 parts Al₂O₃, from about 9 to about 12 parts alkali metal oxide, from about 8 to about 21 parts Zno, from about 0 to about 3 parts BaO, from about 2 to about 4 parts MoO₃, from about 1 to about 5 parts Fe₂O₃, from about 1 to about 4 parts CoO, from about 0 to about 3 parts TiO₂, from about 0 to about 4 parts CaO, from about 0 to about 5 parts La₂O₃ and from about 2 to about 10 parts of added fluorine.
Claim 28
Dependent Claim
23 words
The composite windshield of claim 21 wherein said glass also contains from about 8% to about 16% by weight of a ceramic pigment.
Claim 29
Dependent Claim
23 words
The composite windshield of claim 23 wherein said glass also contains from about 8% to about 16% by weight of a ceramic pigment.
Claim 30
Dependent Claim
43 words
The composite windshield of claim 21 wherein said glass corresponds to the following oxide composition: Oxide Percent by Weight SiO₂ 36 B₂O₃ 24 ZrO₂ 6 Na₂O 6.71 K₂O 3.29 ZnO 10 BaO 2 MoO₃ 4 Fe₂O₃ 2 CoO 2 CeO₂ 4 F₂ 4
Claim 31
Dependent Claim
45 words
The composite windshield of claim 21 wherein said glass corresponds to the following oxide composition: Oxide Percent by Weight SiO₂ 28 B₂O₃ 28 Al₂O₃ 3 Na₂O 5.06 K₂O 4.94 Li₂O 1.0 ZnO 17.5 MoO₃ 4 Fe₂O₃ 2.5 CoO 1.5 CeO₂ 4 MnO₂ 0.5 F₂ 6
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GB2072159A
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EP0174893A2
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