WO2015088026A1 - 紫外線吸収性ガラス物品 - Google Patents
紫外線吸収性ガラス物品 Download PDFInfo
- Publication number
- WO2015088026A1 WO2015088026A1 PCT/JP2014/083044 JP2014083044W WO2015088026A1 WO 2015088026 A1 WO2015088026 A1 WO 2015088026A1 JP 2014083044 W JP2014083044 W JP 2014083044W WO 2015088026 A1 WO2015088026 A1 WO 2015088026A1
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- WIPO (PCT)
- Prior art keywords
- less
- ultraviolet
- glass article
- mass
- glass
- Prior art date
Links
- 239000011521 glass Substances 0.000 title claims abstract description 114
- 238000002834 transmittance Methods 0.000 claims abstract description 58
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 16
- 230000000638 stimulation Effects 0.000 claims description 11
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 10
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052711 selenium Inorganic materials 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 11
- 239000011159 matrix material Substances 0.000 abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 15
- 230000008018 melting Effects 0.000 description 15
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(II) oxide Inorganic materials [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 14
- 239000011651 chromium Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 11
- 239000011734 sodium Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 238000006124 Pilkington process Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 239000006063 cullet Substances 0.000 description 2
- 238000004031 devitrification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000010446 mirabilite Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000008395 clarifying agent Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000006103 coloring component Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- BVTBRVFYZUCAKH-UHFFFAOYSA-L disodium selenite Chemical compound [Na+].[Na+].[O-][Se]([O-])=O BVTBRVFYZUCAKH-UHFFFAOYSA-L 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000006025 fining agent Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229960001471 sodium selenite Drugs 0.000 description 1
- 235000015921 sodium selenite Nutrition 0.000 description 1
- 239000011781 sodium selenite Substances 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/02—Compositions for glass with special properties for coloured glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/08—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
- C03C4/085—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for ultraviolet absorbing glass
Definitions
- the present invention relates to a UV-absorbing glass article suitable for dark gray glass for vehicles (particularly for automobiles).
- a dark gray glass As a rear side glass and a rear glass of an automotive glass, a dark gray glass (so-called dark gray glass or privacy glass) having a significantly reduced visible light transmittance has been put into practical use.
- This privacy glass has high sunlight shielding performance in a wide wavelength range from the ultraviolet region to the infrared region, reducing indoor comfort, reducing air conditioning load, selectivity of color tone that gives a high-class feel, and design with excellent design Excellent in terms of privacy protection in the car.
- Patent Document 1 and Patent Document 2 disclose conventional privacy glass.
- Patent Document 1 discloses an infrared-absorbing and ultraviolet-absorbing glass article using an infrared-absorbing material, an ultraviolet-absorbing material, and a component acting as a colorant in addition to the components of soda-lime-silica glass.
- This glass article is colored green and has a light transmittance of about 60% or less, a total solar ultraviolet transmittance of about 40% or less, a total solar infrared transmittance of about 45% or less, and a total sun of about 50% or less.
- Patent Document 2 discloses a glass article having a total solar ultraviolet transmittance of 1% or less.
- the present invention is an ultraviolet-absorbing glass article that is easy to manufacture, is suitable as a privacy glass for vehicles, particularly automobiles, has a low ultraviolet transmittance (TUV), and satisfies the requirement for ensuring visibility.
- TUV ultraviolet transmittance
- the present invention is expressed in terms of mass% based on oxide, and as a glass mother composition, SiO 2 66-75%, Na 2 O 10-20%, CaO 5-15%, MgO 0-6%, Al 2 O 3 0-5%, K 2 O 0-5%, FeO 0.13-0.9%, Fe 2 O 3 expressed in total iron 0.8% or more, less than 2.4%, TiO 2 more than 1%, 5% or less, Containing CoO is contained in an amount of 100 to 500 mass ppm, Se is contained in an amount of 0 to 70 mass ppm, and Cr 2 O 3 is contained in an amount of 0 to 800 mass ppm, and CoO, Se, and Cr 2 O are contained in the total amount of the components of the glass matrix composition. The total amount of 3 is less than 0.1% by mass, An ultraviolet-absorbing glass article having an ultraviolet transmittance (TUV) (ISO 9050: 2003) at a plate thickness of 3.5 mm of 2% or less is provided.
- TUV ultraviolet transmittance
- the present invention is expressed in terms of mass% based on oxide, and as a glass mother composition, SiO 2 66-75%, Na 2 O 10-20%, CaO 5-15%, MgO 0-6%, Al 2 O 3 0-5%, K 2 O 0-5%, FeO 0.13-0.9%, Fe 2 O 3 expressed in total iron 0.8% or more, less than 2.4%, TiO 2 more than 1%, 5% or less, Containing CoO is contained in an amount of 200 to 500 mass ppm, Se is contained in an amount of 3 to 70 mass ppm, and Cr 2 O 3 is contained in an amount of 0 to 800 mass ppm, and CoO, Se, and Cr 2 O are contained in the total amount of the components of the glass mother composition. The total amount of 3 is less than 0.1% by mass, An ultraviolet-absorbing glass article having an ultraviolet transmittance (TUV) (ISO 9050: 2003) at a plate thickness of 3.5 mm of 2% or less is provided.
- TUV ultraviolet transmittance
- the ultraviolet absorbing glass article of the present invention may further contain 0 to 1% by mass of NiO with respect to the total amount of the components of the glass composition.
- the ultraviolet-absorbing glass article of the present invention preferably has an ultraviolet transmittance (TUV) (ISO 9050: 2003) of 2% or less at a plate thickness of 2.5 mm.
- TUV ultraviolet transmittance
- the UV-absorbing glass article of the present invention has a visible light transmittance (TVA) (JIS-R3106 (1998)) of 10% or more and 20% or less measured using a standard A light source with a thickness of 3.5 mm. It is preferable.
- TVA visible light transmittance
- the ultraviolet-absorbing glass article of the present invention has a visible light transmittance (TVA) (JIS-R3106 (1998)) of 10% or more and 35% or less measured using a standard A light source with a thickness of 2.5 mm. It is preferable.
- TVA visible light transmittance
- the ultraviolet-absorbing glass article of the present invention preferably has a solar transmittance (TE) (JIS-R3106 (1998)) of 25% or less at a plate thickness of 3.5 mm.
- TE solar transmittance
- the ultraviolet-absorbing glass article of the present invention preferably has a solar transmittance (TE) (JIS-R3106 (1998)) of 35% or less at a plate thickness of 2.5 mm.
- TE solar transmittance
- the UV-absorbing glass article of the present invention has a dominant wavelength ( ⁇ D) measured using a standard C light source with a plate thickness of 3.5 mm of 485 to 580 nm, and stimulation purity (Pe) measured using a standard C light source. Is preferably 25% or less.
- the ultraviolet-absorbing glass article of the present invention has a dominant wavelength ( ⁇ D) measured using a standard C light source with a plate thickness of 2.5 mm of 485 to 580 nm, and stimulation purity (Pe) measured using a standard C light source. Is preferably 45% or less.
- the content of trivalent iron represented by Fe 2 O 3 and TiO 2 in mass% satisfies the following formula. ⁇ 3.58 ⁇ (Fe 2 O 3 ) ⁇ 0.606 ⁇ (TiO 2 ) ⁇ ⁇ 3.5 Formula 1
- “to” indicating a numerical range is used in the sense of including the numerical values described before and after it as a lower limit and an upper limit, and unless otherwise specified, Are used with similar meanings.
- the present invention can provide an ultraviolet-absorbing glass article that is easy to manufacture and is suitable as a privacy glass for vehicles, has a low ultraviolet transmittance (TUV), and satisfies the requirement for ensuring visibility.
- TUV ultraviolet transmittance
- the ultraviolet-absorbing glass article of the present invention is expressed in terms of mass% based on oxide, and has a glass matrix composition of SiO 2 : 66 to 75%, Na 2 O: 10 to 20%, CaO: 5 to 15%, MgO: 0 to 6%, Al 2 O 3 : 0 to 5%, K 2 O: 0 to 5%, FeO: 0.13 to 0.9%, Total iron expressed by Fe 2 O 3 : 0.8% or more Less than 2.4%, TiO 2 : more than 1%, 5% or less, CoO of 100 to 500 ppm by mass and Se of 0 to 70 ppm by mass with respect to the total amount of the components of the glass matrix composition , And Cr 2 O 3 in an amount of 0 to 800 ppm by mass, and the total amount of CoO, Se and Cr 2 O 3 is less than 0.1% by mass, and the ultraviolet transmittance (TUV) at a thickness of 3.5 mm (ISO 9050: 2003) is 2% or less.
- TUV ultraviolet transmittance
- SiO 2 is a component for building a network and is an essential component. If the content of SiO 2 is 66% or more, the weather resistance is improved, and if it is 75% or less, the viscosity does not become too high and is convenient for melting. If it is 66% or more and 72% or less, it is preferable, and if it is 67% or more and 70% or less, it is more preferable.
- Na 2 O is a component that promotes melting of the raw material and is an essential component. If the content of Na 2 O is 10% or more, the melting of the raw material is promoted, and if it is 20% or less, the weather resistance does not deteriorate. It is preferably 11% or more and 18% or less, and more preferably 12% or more and 16% or less.
- CaO is a component that promotes melting of raw materials and improves weather resistance, and is an essential component.
- the content of CaO is 5% or more, the melting of the raw material is promoted and the weather resistance is improved, and when it is 15% or less, devitrification is suppressed. It is preferably 6% or more and 13% or less, more preferably 7% or more and 11% or less.
- MgO is a component that promotes melting of raw materials and improves weather resistance, and is a selective component. MgO suppresses devitrification if the content is 6% or less. 5% or less is preferable, and 4% or less is more preferable.
- Al 2 O 3 is a component that improves weather resistance and is a selective component. If the content of Al 2 O 3 is 5% or less, the viscosity does not become too high and is convenient for melting. It is preferably 4% or less, more preferably 3% or less.
- K 2 O is a component that promotes melting of the raw material and is a selective component. K 2 O is, suppress damage to the refractory of the melting furnace due to volatilization if is less than 5% content. It is preferably 4% or less, more preferably 3% or less.
- FeO is a component that absorbs thermal energy and is an essential component. If the content of FeO is 0.13% or more, a sufficiently low solar transmittance can be obtained. On the other hand, if the content is 0.9% or less, the thermal efficiency at the time of melting does not deteriorate, and the base material is prevented from staying at the bottom of the melting furnace far from the heating source. It is preferably 0.15% or more and 0.7% or less, and more preferably 0.18% or more and 0.40% or less.
- the total iron content converted to Fe 2 O 3 (that is, the total iron content including FeO) is 0.8% or more, the visible light transmittance is not increased and is less than 2.4%. If so, the visible light transmittance is not reduced. That is, the visible light transmittance is in an appropriate range. A more preferable total iron content is 1.0 to 1.8%.
- trivalent iron is a component that absorbs ultraviolet rays. If the content is too small, the ultraviolet transmittance becomes too large, and if the content is too large, the yellowness becomes strong and the stimulation purity becomes too large. It is desirable that the content of trivalent iron and TiO 2 converted to Fe 2 O 3 satisfy the following formula. ⁇ 3.58 ⁇ (Fe 2 O 3 ) ⁇ 0.606 ⁇ (TiO 2 ) ⁇ ⁇ 3.5 (Formula 1)
- TiO 2 is a component that reduces the ultraviolet transmittance (TUV) and is an essential component. If the content of TiO 2 is more than 1%, the ultraviolet transmittance is not increased, and if it is 5% or less, the yellowness is suppressed and the stimulation purity is suppressed from increasing. In addition, TiO 2 has an effect of lowering the viscosity of the substrate at the time of melting, and has a function of making it difficult for the substrate to stay. It is preferably 1.2% or more and 4% or less, and more preferably 1.5% or more and 3.3% or less.
- Se is not essential, but can be contained because it is a component that makes glass reddish.
- Se is preferably 3 ppm or more, and if it is 70 ppm or less, it suppresses yellowing. It is more preferably 5 ppm or more and 50 ppm or less, and further preferably 10 ppm or more and 30 ppm or less.
- CoO is a component that makes glass bluish and is an essential component. If the content is 100 ppm or more, CoO suppresses the color tone of the glass from being yellowish, and if the content is 500 ppm or less, it suppresses the color tone of the glass from being bluish. A more preferable CoO content is 200 to 500 ppm, and a more preferable CoO content is 280 to 420 ppm.
- Cr 2 O 3 is a component that reduces visible light transmittance without increasing the excitation purity so much in the glass article of the present invention, and is an optional component. Cr 2 O 3 suppresses an increase in stimulation purity when the content is 800 ppm or less. The preferable Cr 2 O 3 content is 300 ppm or less.
- the ultraviolet-absorbing glass article of the present invention is preferably expressed in terms of mass% based on oxides, and has a glass matrix composition of SiO 2 : 66 to 75%, Na 2 O: 10 to 20%, CaO: 5 to 15%.
- CoO is 200 to 500 mass ppm and Se is 3 to 70 mass based on the total amount of the components of the glass matrix composition.
- UV transmittance at a plate thickness 3.5 mm (TUV) (ISO9050: 2003) is 2% or less.
- the glass article of the present invention preferably contains an oxide of Ni in addition to the above.
- the content in terms of oxide (NiO) is 0 to 1% by mass with respect to the total amount of the components of the glass mother composition.
- the glass article of the present invention may contain oxides of B, Ba, Sr, Li, Zn, Pb, P, Zr, and Bi in addition to the above.
- the content of these oxides (B 2 O 3 , BaO, SrO, Li 2 O, ZnO, PbO, P 2 O 5 , ZrO 2 , Bi 2 O 3 ) is the sum of the components of the glass matrix composition described above.
- Each may be 0 to 1% by weight, based on the amount.
- the upper limit of the total content of each oxide described above is preferably 2% by mass.
- Sb, As, Cl, and F may be contained. These elements can be intentionally mixed from melting aids and fining agents. Or it may contain as an impurity in a raw material or a cullet. The total amount of these contents may be 0 to 0.1% by mass with respect to the total amount of the components of the glass mother composition described above.
- oxide of Sn may be 0 to 0.1% by mass with respect to the total amount of the components of the glass matrix composition described above.
- each oxide of Mn, Cu, Mo, Nd, and Er may contain each oxide of Mn, Cu, Mo, Nd, and Er.
- the total amount of these oxide equivalents is 0 to 0.1 with respect to the total amount of the components of the glass matrix composition described above. It may be mass%.
- the glass article of the present invention does not substantially contain UV absorbers such as V and W.
- substantially not contained means that they are not intentionally contained. Specifically, it means that the content of these elements is about 100 ppm or less in the glass.
- the glass article of the present invention is used as a privacy glass for vehicles, particularly automobiles, it is preferably a glass plate having the above composition and has the following optical characteristics.
- the visible light transmittance (TVA) is preferably 10 to 20%, more preferably 12 to 18%.
- the solar transmittance (TE) is preferably 25% or less and more preferably 23% or less at a thickness of 3.5 mm.
- the thickness is 3.5 mm, and the ultraviolet transmittance (TUV) is preferably 2% or less, more preferably 1%.
- the thickness is 3.5 mm
- the main wavelength ⁇ D is 485 to 580 nm
- the stimulation purity (Pe) is 25% or less
- the stimulation purity (Pe) is 10% or less.
- a glass plate is particularly preferred.
- the solar radiation transmittance and the visible light transmittance are determined according to JIS-R3106 (1998), and the ultraviolet transmittance is determined according to ISO 9050 (2003). Further, the visible light transmittance is calculated using a standard A light source 2 degree field of view, and the dominant wavelength and stimulus purity are calculated using a standard C light source 2 degree field of view.
- the glass article of the present invention is used as a thin vehicle privacy glass, it is preferably a glass plate having the above composition and having the following optical characteristics.
- the visible light transmittance (TVA) is preferably 10 to 35%, more preferably 15 to 30%.
- the solar transmittance (TE) is preferably 35% or less and more preferably 30% or less at a thickness of 2.5 mm.
- the thickness is 2.5 mm
- the main wavelength ⁇ D is 485 to 580 nm
- the stimulation purity (Pe) is 45% or less
- the stimulation purity (Pe) is 35% or less. Glass is particularly preferred.
- the glass article of the present invention has an effect that glass can be easily produced when the temperature at which the viscosity becomes 100 poise is 1440 ° C. or lower.
- the temperature at which the viscosity becomes 100 poise is preferably 1435 ° C. or lower, more preferably 1410 ° C. or lower, and particularly preferably 1400 ° C. or lower.
- the method for producing the glass article of the present invention is not particularly limited, but can be produced, for example, as follows.
- the prepared raw materials are continuously supplied to a melting furnace and heated to about 1500 ° C. with heavy oil or the like to be vitrified.
- the molten glass is clarified and then formed into a sheet glass ribbon having a predetermined thickness by a float method or the like.
- the glass article of the present invention is manufactured by cutting the glass ribbon into a predetermined shape. Thereafter, if necessary, the cut glass can be tempered, processed into laminated glass, or processed into a multilayer glass.
- Example 22 to 24 Further, the mixed raw material batch and glass cullet were continuously vitrified in a melting furnace and clarified, and then formed into a plate shape by a float process. Subsequently, the glass ribbon was gradually cooled and then cut. About the obtained plate glass, the composition was analyzed with the fluorescent X ray analyzer. Further, the spectral transmittance was measured with a spectrophotometer. In addition, about FeO, it calculated
- the temperature at which the viscosity of the glass of Patent Document 2 is 100 poise is 1443 ° C
- the temperature at which the viscosity of the glass of Example 2 of the present invention is 100 poise is 1406 ° C. It was confirmed that the temperature at which the viscosity of the glass of Example 4 of the present invention was 100 poise was 1348 ° C. Therefore, it confirmed that the glass article of this invention was easy to manufacture compared with the conventional glass article.
- an ultraviolet-absorbing glass article that is easy to manufacture, suitable as a vehicle privacy glass, has a low ultraviolet transmittance (TUV), and satisfies the requirement for ensuring visibility, and in particular, the rear side of an automobile. It is useful as a glass plate for glass windows and rear glass windows.
- TUV ultraviolet transmittance
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- Chemical & Material Sciences (AREA)
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Abstract
Description
しかしながら、特許文献1のガラスは、低い紫外線透過率(TUV)を満足しているものの、色が濃くなることにより、視界確保の点で要求を満足できていない。また、特許文献2のガラスは、発明者らの検討によると、粘度が100ポアズのときの温度が高く(1443℃)、ガラス製造が難しい場合がある。
SiO2 66~75%、
Na2O 10~20%、
CaO 5~15%、
MgO 0~6%、
Al2O3 0~5%、
K2O 0~5%、
FeO 0.13~0.9%、
Fe2O3で表した全鉄 0.8%以上、2.4%未満、
TiO2 1%超、5%以下、
を含有し、
当該ガラス母組成の成分の合量に対して、CoOを100~500質量ppm、Seを0~70質量ppmおよびCr2O3を0~800質量ppm含有し、かつCoO、SeおよびCr2O3の合量が0.1質量%未満であり、
板厚3.5mmでの紫外線透過率(TUV)(ISO9050:2003)が2%以下であることを特徴とする紫外線吸収性ガラス物品を提供する。
SiO2 66~75%、
Na2O 10~20%、
CaO 5~15%、
MgO 0~6%、
Al2O3 0~5%、
K2O 0~5%、
FeO 0.13~0.9%、
Fe2O3で表した全鉄 0.8%以上、2.4%未満、
TiO2 1%超、5%以下、
を含有し、
当該ガラス母組成の成分の合量に対して、CoOを200~500質量ppm、Seを3~70質量ppmおよびCr2O3を0~800質量ppm含有し、かつCoO、SeおよびCr2O3の合量が0.1質量%未満であり、
板厚3.5mmでの紫外線透過率(TUV)(ISO9050:2003)が2%以下であることを特徴とする紫外線吸収性ガラス物品を提供する。
-3.58×(Fe2O3)-0.606×(TiO2)≦-3.5 …式1
本明細書において数値範囲を示す「~」とは、その前後に記載された数値を下限値および上限値として含む意味で使用され、特段の定めがない限り、以下本明細書において「~」は、同様の意味をもって使用される。
-3.58×(Fe2O3)-0.606×(TiO2)≦-3.5 …(式1)
まず、3.5mm厚さで、可視光透過率(TVA)は、10~20%であることが好ましく、12~18%がより好ましい。また、3.5mm厚さで、日射透過率(TE)は、25%以下であることが好ましく、23%以下がより好ましい。
また、3.5mm厚さで、紫外線透過率(TUV)は、2%以下であることが好ましく、1%がより好ましい。
また、上記光学特性に加えて、3.5mm厚さで、主波長λDが485~580nm、刺激純度(Pe)が25%以下であることが好ましく、刺激純度(Pe)が10%以下であるガラス板が特に好ましい。
本明細書を通じて、日射透過率、可視光透過率は、JIS-R3106(1998)により、紫外線透過率は、ISO 9050(2003)により、それぞれ求めたものである。また、可視光透過率は、標準A光源2度視野を、主波長と刺激純度は、標準C光源2度視野を、それぞれ用いて算出したものである。
2.5mm厚さで、可視光透過率(TVA)は、10~35%であることが好ましく、15~30%がより好ましい。また、2.5mm厚さで、日射透過率(TE)は、35%以下であることが好ましく、30%以下がより好ましい。
また、2.5mm厚さで、紫外線透過率(TUV)は、2%以下であることが好ましく、1%がより好ましい。
また、上記光学特性に加えて、2.5mm厚さで、主波長λDが485~580nm、刺激純度(Pe)が45%以下であることが好ましく、刺激純度(Pe)が35%以下であるガラスが特に好ましい。
原料として、ケイ砂、長石、苦灰石、ソーダ灰、芒硝、高炉スラグ、酸化第二鉄、酸化チタン、酸化コバルト、亜セレン酸ソーダ、酸化クロムを用いて原料バッチを調合した。ガラス母組成の母成分として、SiO2:65~70、Al2O3:1.8、CaO:8.4、MgO:4.6、Na2O:13.3、K2O:0.7およびSO3:0.2(単位:質量%)からなるソーダライムシリケートガラスを使用した。母成分と、吸収成分として加えるt-Fe2O3(Fe2O3に換算した全鉄)、CoO、Se、TiO2、およびCr2O3の合計が100質量%になるようにSiO2含有量を調整して目標組成とした。バッチを白金―ロジウム製のルツボに入れて、電気炉中で、O2濃度0.5%程度の雰囲気において熔融し、カーボン板上に流し出した後、別の電気炉内で徐冷した。得られたガラスブロックを切断し、一部を研磨して蛍光X線分析装置により組成を分析した。別の一部の表面を研磨して鏡面状に、かつ厚み3.5mmまたは2.5mmになるように仕上げて、分光光度計により分光透過率を測定した。なお、FeOについては波長1000nmの赤外線透過率から計算により求めた。以下、例1~21に得られたガラス中の吸収成分の含有量と光学特性を示す。
また、混合した原料バッチとガラスカレットを熔融炉にて連続的にガラス化し、清澄した後、フロート法により板状に成形した。続けてガラスリボンを徐冷し、その後、切断した。得られた板ガラスについて、蛍光X線分析装置により組成を分析した。また、分光光度計により分光透過率を測定した。なお、FeOについては波長1000nmの赤外線透過率から計算により求めた。以下、例22~24に得られたガラス中の吸収成分の含有量と光学特性を示す。
なお、2013年12月13日に出願された日本特許出願2013-258558号、および2014年9月8日に出願された日本特許出願2014-182168号の明細書、特許請求の範囲および要約書の全内容をここに引用し、本発明の開示として取り入れるものである。
Claims (11)
- 酸化物基準の質量%表示で、ガラス母組成として、
SiO2 66~75%、
Na2O 10~20%、
CaO 5~15%、
MgO 0~6%、
Al2O3 0~5%、
K2O 0~5%、
FeO 0.13~0.9%、
Fe2O3で表した全鉄 0.8%以上、2.4%未満、
TiO2 1%超、5%以下、
を含有し、
前記ガラス母組成の成分の合量に対して、CoOを100~500質量ppm、Seを0~70質量ppmおよびCr2O3を0~800質量ppm含有し、かつCoO、SeおよびCr2O3の合量が0.1質量%未満であり、
板厚3.5mmでの紫外線透過率(TUV)(ISO9050:2003)が2%以下であることを特徴とする紫外線吸収性ガラス物品。 - 酸化物基準の質量%表示で、ガラス組成として、
SiO2 66~75%、
Na2O 10~20%、
CaO 5~15%、
MgO 0~6%、
Al2O3 0~5%、
K2O 0~5%、
FeO 0.13~0.9%、
Fe2O3で表した全鉄 0.8%以上、2.4%未満、
TiO2 1%超、5%以下、
を含有し、
前記ガラス組成の成分の合量に対して、CoOを200~500質量ppm、Seを3~70質量ppmおよびCr2O3を0~800質量ppm含有し、かつCoO、SeおよびCr2O3の合量が0.1質量%未満であり、
板厚3.5mmでの紫外線透過率(TUV)(ISO9050:2003)が2%以下であることを特徴とする紫外線吸収性ガラス物品。 - さらに、前記ガラス組成の成分の合量に対して、NiOを0~1質量%含有する、請求項1または2に記載の紫外線吸収性ガラス物品。
- 板厚2.5mmでの紫外線透過率(TUV)(ISO9050:2003)が2%以下である、請求項1~3のいずれか一項に記載の紫外線吸収性ガラス物品。
- 板厚3.5mmでの標準A光源を用いて測定した可視光透過率(TVA)(JIS-R3106(1998))が10%以上、20%以下である、請求項1~4のいずれか一項に記載の紫外線吸収性ガラス物品。
- 板厚2.5mmでの標準A光源を用いて測定した可視光透過率(TVA)(JIS-R3106(1998))が10%以上、35%以下である、請求項1~4のいずれか一項に記載の紫外線吸収性ガラス物品。
- 板厚3.5mmでの日射透過率(TE)(JIS-R3106(1998))が25%以下である、請求項1~5のいずれか一項に記載の紫外線吸収性ガラス物品。
- 板厚2.5mmでの日射透過率(TE)(JIS-R3106(1998))が35%以下である、請求項1~4、6のいずれか一項に記載の紫外線吸収性ガラス物品。
- 板厚3.5mmでの標準C光源を用いて測定した主波長(λD)が485~580nmであり、標準C光源を用いて測定した刺激純度(Pe)が25%以下である請求項1~5、7のいずれか一項に記載の紫外線吸収性ガラス物品。
- 板厚2.5mmでの標準C光源を用いて測定した主波長(λD)が485~580nmであり、標準C光源を用いて測定した刺激純度(Pe)が45%以下である請求項1~4、6、8のいずれか一項に記載の紫外線吸収性ガラス物品。
- 質量%表示で、Fe2O3で表した3価の鉄とTiO2との含量が下記式を満たす請求項1~10のいずれか一項に記載の紫外線吸収性ガラス物品。
-3.58×(Fe2O3)-0.606×(TiO2)≦-3.5
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DE112022002800T5 (de) | 2021-05-25 | 2024-04-25 | AGC Inc. | Fahrzeugverbundglas und fahrzeugfensterkonstruktion |
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Also Published As
Publication number | Publication date |
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CN105814001A (zh) | 2016-07-27 |
US9878936B2 (en) | 2018-01-30 |
JP6711426B2 (ja) | 2020-06-17 |
EP3081542A4 (en) | 2017-05-03 |
CN105814001B (zh) | 2019-06-18 |
EP3081542A1 (en) | 2016-10-19 |
JP2019059670A (ja) | 2019-04-18 |
JP6504057B2 (ja) | 2019-04-24 |
JPWO2015088026A1 (ja) | 2017-03-16 |
US20160229735A1 (en) | 2016-08-11 |
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