EP0799805A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ultraviolet ray absorbing colored glass
Assignee: AGC Inc
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Filing: 1997-04-02
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Granted: —
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Expires: 2017-04-02
Abstract
Abstract Ultraviolet ray absorbing colored glass, which comprises 100 parts by weight of a base component consisting of soda lime silicate glass and coloring components comprising from 0.08 to 0.4 part by weight of total iron as calculated as Fe 2 O 3 , from 0.05 to 0.4 part by weight of vanadium as calculated as V 2 O 5 , from 0.0005 to 0.03 part by weight of Se, from 0 to 0.005 part by weight of CoO, from 0 to 2.0 parts by weight of TiO 2 and from 0 to 0.8 part by weight of CeO 2 .
Inventors
- 👤 Setsuko c/o Asahi Glass Company Ltd. Mita
- 👤 Toru c/o Asahi Glass Company Ltd. Kudo
- 👤 Mizuki c/o Asahi Glass Company Ltd. Sasage
- 👤 Shiro c/o Asahi Glass Company Ltd. Tanii
- 👤 Takashi c/o Asahi Glass Company Ltd. Kijima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 03:07
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/095; C03C3/083; C03C3/085; C03C3/087; C03C4/00; C03C4/02; C03C4/08; C03C4/085
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
Ultraviolet ray absorbing colored glass, which comprises 100 parts by weight of a base component consisting of soda lime silicate glass and coloring components comprising from 0.08 to 0.4 part by weight of total iron as calculated as Fe 2 O 3 , from 0.05 to 0.4 part by weight of vanadium as calculated as V 2 O 5 , from 0.0005 to 0.03 part by weight of Se, from 0 to 0.005 part by weight of CoO, from 0 to 2.0 parts by weight of TiO 2 and from 0 to 0.8 part by weight of CeO 2 .
Claim 2
Dependent Claim
105 words
The ultraviolet ray absorbing colored glass according to Claim 1, which comprises 100 parts by weight of a base component consisting of soda lime silicate glass and coloring components comprising from 0.08 to 0.2 part by weight of total iron as calculated as Fe 2 O 3 , from 0.05 to 0.2 part by weight of vanadium as calculated as V 2 O 5 , from 0.0005 to 0.01 part by weight of Se, from 0 to 0.005 part by weight of CoO, from 0 to 2.0 parts by weight of TiO 2 and from 0 to 0.8 part by weight of CeO 2 .
Claim 3
Dependent Claim
38 words
The ultraviolet ray absorbing colored glass according to Claim 1 or 2, which has a dominant wavelength of from 570 to 590 nm as measured by illuminant C and which has a brown color or a gray color.
Claim 4
Dependent Claim
38 words
The ultraviolet ray absorbing colored glass according to Claim 1, 2 or 3, which has an excitation purity of from 1 to 15% as measured by illuminant C as of a thickness of from 2 to 15 mm.
Claim 5
Dependent Claim
35 words
The ultraviolet ray absorbing colored glass according to any one of Claims 1 to 4, which has a solar radiation transmittance of at most 75% as of a thickness of from 3 to 5 mm.
Claim 6
Dependent Claim
40 words
The ultraviolet ray absorbing colored glass according to any one of Claims 1 to 5, which has an ultraviolet ray transmittance of at most 15% as stipulated in ISO 9050 as of a thickness of from 3 to 5 mm.
Claim 7
Dependent Claim
68 words
The ultraviolet ray absorbing colored glass according to any one of Claims 1 to 6, wherein the soda lime silicate glass as the base component comprises the following components: SiO 2 65 to 75 wt%, Al 2 O 3 0.1 to 5 wt%, Na 2 O 10 to 18 wt%, K 2 O 0 to 5 wt%, CaO 5 to 15 wt%, and MgO 1 to 6 wt%.
Claim 8
Dependent Claim
52 words
The ultraviolet ray absorbing colored glass according to any one of Claims 1 to 7 for buildings, which has an excitation purity of from 4 to 15% and a dominant wavelength of from 570 to 590 nm as measured by illuminant C, as of a thickness of from 2 to 15 mm.
Claim 9
Dependent Claim
70 words
The ultraviolet ray absorbing colored glass according to any one of Claims 1 to 7 for vehicles, which has an excitation purity of from 1 to 12 wt% as measured by illuminant C, an ultraviolet ray transmittance of at most 10% as stipulated in ISO 9050, and a visible ray transmittance of at least 70% as measured by illuminant A, as of a thickness of from 3 to 5 mm.
Claim 10
Dependent Claim
84 words
A glass sheet for vehicles, which is made of the ultraviolet ray absorbing colored glass of any one of Claims 1 to 7 and has a thickness of from 2.5 to 6 mm, and which has an excitation purity of from 1 to 12% as measured by illuminant C, an ultraviolet ray transmittance of at most 15% as stipulated in ISO 9050, a solar radiation transmittance of at most 75% and a visible ray transmittance of at least 70% as measured by illuminant A.
References Cited (Backward Citations)
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