WO2020158982A1 - 무연계 저온 소성 글라스 프릿, 페이스트 및 이를 이용한 진공 유리 조립체 - Google Patents
무연계 저온 소성 글라스 프릿, 페이스트 및 이를 이용한 진공 유리 조립체 Download PDFInfo
- Publication number
- WO2020158982A1 WO2020158982A1 PCT/KR2019/001550 KR2019001550W WO2020158982A1 WO 2020158982 A1 WO2020158982 A1 WO 2020158982A1 KR 2019001550 W KR2019001550 W KR 2019001550W WO 2020158982 A1 WO2020158982 A1 WO 2020158982A1
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- WO
- WIPO (PCT)
- Prior art keywords
- glass
- weight
- glass frit
- present
- paste
- Prior art date
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Classifications
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- 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
- C03C3/12—Silica-free oxide glass compositions
- C03C3/16—Silica-free oxide glass compositions containing phosphorus
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- 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/08—Frit compositions, i.e. in a powdered or comminuted form containing phosphorus
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/20—Uniting glass pieces by fusing without substantial reshaping
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/20—Uniting glass pieces by fusing without substantial reshaping
- C03B23/24—Making hollow glass sheets or bricks
- C03B23/245—Hollow glass sheets
-
- 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
- C03C3/12—Silica-free oxide glass compositions
- C03C3/122—Silica-free oxide glass compositions containing oxides of As, Sb, Bi, Mo, W, V, Te as glass formers
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- 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
- C03C3/12—Silica-free oxide glass compositions
- C03C3/16—Silica-free oxide glass compositions containing phosphorus
- C03C3/21—Silica-free oxide glass compositions containing phosphorus containing titanium, zirconium, vanadium, tungsten or molybdenum
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- 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
- C03C8/16—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions with vehicle or suspending agents, e.g. slip
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/6612—Evacuated glazing units
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/663—Elements for spacing panes
Definitions
- the present invention relates to a lead-free low-temperature fired glass frit, paste and vacuum glass assembly using the same.
- sealing or adhesion is performed by a glass frit containing a glass composition and inorganic ceramic particles.
- the sealing glass frit is generally applied in the form of a paste, and the glass paste is applied to the glass using a screen printing method or a dispenser method, dried and fired to give a sealing function.
- PbO-B 2 O 3 based glass composition containing a large amount of lead oxide has been widely applied.
- This PbO-B 2 O 3 -based glass composition exhibited good softening fluidity with a softening point of approximately 400-450°C and had relatively high chemical stability.
- the PbO-B 2 O 3 -based glass composition contains a lot of lead designated as a prohibited substance of the RoHS directive, it has become difficult to use it as a sealing glass paste. Accordingly, development of a novel glass composition containing no lead has been required. In addition, in order to reduce thermal damage and improve productivity of various glass sealing parts or electric and electronic parts, development of a lead-free glass composition capable of softening flow at a lower temperature than PbO-B 2 O 3 based glass compositions and having good chemical stability The situation is also strongly demanded.
- P 2 O 5 -V 2 O 5 -TeO 2 based lead-free glass composition is known as a lead-free glass composition that can be fired at a low temperature without containing lead in accordance with the demand for a lead-free glass composition.
- the conventional P 2 O 5 -V 2 O 5 -TeO 2 based lead-free glass composition has a problem in that peeling or breakage may occur due to mismatch of the thermal expansion coefficient with the glass substrate even when firing is possible at low temperatures.
- the conventional P 2 O 5 -V 2 O 5 -TeO 2 based lead-free glass composition uses a large amount of inorganic filler to match the thermal expansion coefficient with the glass substrate, but there is a problem that the product cost is increased accordingly.
- the conventional P 2 O 5 -V 2 O 5 -TeO 2 based glass composition since V 2 O 5 reacts with moisture, the glass to which the conventional P 2 O 5 -V 2 O 5 -TeO 2 based glass composition is applied The assembly has reduced chemical durability.
- the conventional P 2 O 5 -V 2 O 5 -TeO 2 based glass composition is not satisfactory in adhesion strength with a glass substrate, so that the conventional P 2 O 5 -V 2 O 5 -TeO 2 based glass composition is applied.
- the assembly has a problem that reliability is deteriorated when used for a long time.
- the conventional P 2 O 5 -V 2 O 5 -TeO 2 based glass composition has a problem in that it is difficult to obtain good softening fluidity due to a high tendency to crystallize upon firing.
- An object of the present invention is to provide a new lead-free low-temperature fired glass frit capable of firing at low temperatures as a lead-free glass composition that replaces the conventional flexible-based glass composition.
- an object of the present invention is to provide a lead-free low-temperature fired glass frit having excellent chemical durability and excellent bonding strength, thereby improving reliability.
- Another object of the present invention is to provide a lead-free low-temperature fired glass frit having a new composition ratio with a low crystallization tendency even during low-temperature fire.
- the glass frit according to the present invention is P 2 O 5 10-20 wt%, V 2 O 5 50-70 wt%, TeO 2 5-20 wt%, CuO 1-5 wt %, 1 to 20% by weight of one or more of BaO and ZnO, and 1 to 30% by weight of one or more of Bi 2 O 3 and Ag 2 O.
- the glass frit according to the present invention includes at least one of BaO and ZnO and at least one of Bi 2 O 3 and Ag 2 O in an appropriate amount. do.
- the glass frit according to the present invention is P 2 O 5
- the content of V 2 O 5 and TeO 2 may satisfy the following relationship.
- the glass frit according to the present invention is conventional by having a new component system including P 2 O 5 , V 2 O 5 , TeO 2 , CuO, BaO, ZnO, Bi 2 O 3 , and Ag 2 O in a composition ratio specific to the present invention. It replaces the flexible glass composition and has the effect that low-temperature firing is possible.
- the glass frit according to the present invention has a coefficient of thermal expansion (CTE) after firing, which may be in the range of 80 to 100 x 10 -7 /°C, so that it does not include an inorganic filler or minimizes the content of the inorganic filler, while minimizing the content of the inorganic filler. Is matched, there is no peeling or breakage phenomenon, and there is an excellent durability effect.
- CTE coefficient of thermal expansion
- the glass frit according to the present invention includes at least one of BaO and ZnO and at least one of Bi 2 O 3 and Ag 2 O in an appropriate content to increase chemical durability and maximize bonding strength with a glass substrate. have.
- the glass frit according to the present invention is P 2 O 5 , V 2 O 5 , and TeO 2 Since it can have an optimum ratio of content, it is possible to fire at a low temperature and has a low crystallization tendency even at low temperature firing.
- the glass frit used as a sealing material generally has a low fluidity at a low temperature when the physical properties such as a glass transition point and a softening point are low, but if the property temperature is too low, the tendency to crystallization increases according to the opposite supply, resulting in a low temperature. May deteriorate the liquidity.
- the sealing process may be applied at low temperatures for various reasons, such as cost reduction, not only for household appliances but also for glass applied to architectural windowpanes. Therefore, the glass frit sealing material used in the sealing process should be capable of firing at low temperatures. In addition, it should be possible to fire at low temperatures and at the same time satisfy the appropriate softening fluidity.
- the present inventors have completed a new glass frit that is capable of firing at low temperature and has low crystallization tendency.
- Glass frit according to the present invention is P 2 O 5 10 ⁇ 20 wt%, V 2 O 5 50 ⁇ 70 wt%, TeO 2 5 ⁇ 20 wt%, CuO 1 ⁇ 5 wt%, BaO and ZnO 1 or more 1 ⁇ 20% by weight, and 1 to 30% by weight of one or more of Bi 2 O 3 and Ag 2 O.
- P 2 O 5 is contained in the range of 10 to 20% by weight to lower the firing temperature of the glass frit and control the flowability. When the P 2 O 5 exceeds 20% by weight, it is easy to fire the glass frit, and there is a problem that the fluidity decreases. If P 2 O 5 is less than 10% by weight, the coefficient of thermal expansion of the glass frit increases and a problem that adhesive strength with the glass substrate decreases may occur.
- V 2 O 5 has the effect of lowering the softening point while increasing the durability of the glass frit and is contained in the range of 50 to 70% by weight in the glass frit.
- V 2 O 5 exceeds 70% by weight, there is a problem that the firing of the glass frit tends to be difficult.
- V 2 O 5 is less than 50% by weight, the effect of lowering the softening point of the glass frit is difficult to be sufficiently exhibited, and also the durability of the glass frit may occur.
- TeO 2 has an effect of increasing the fluidity of the glass frit and is contained in the range of 5 to 20% by weight in the glass frit. If the TeO 2 exceeds 20% by weight, it may be difficult to sufficiently lower the softening point, and it may not be fired. If TeO 2 is less than 5% by weight, a problem in which vitrification of the glass frit may be difficult may occur according to a balance relationship with other components.
- CuO is contained in the range of 1 to 5% by weight to match the thermal expansion coefficient of the glass frit and satisfy durability.
- the CuO exceeds 5% by weight, a problem may arise that the fluidity of the glass frit is lowered. If the CuO is less than 1% by weight, the required thermal expansion coefficient of the glass frit may not be obtained.
- At least one of BaO and ZnO is contained in the range of 1 to 20% by weight to match the coefficient of thermal expansion of the glass frit, increase chemical durability, and increase the adhesion strength with the glass substrate.
- the fluidity of the glass frit decreases, and durability and reliability, such as adhesion with a glass substrate, may be problematic.
- at least one of BaO and ZnO is less than 1% by weight, the thermal expansion coefficient required for the glass frit may not be obtained.
- Bi 2 O 3 And one or more of Ag 2 O is included in 1 to 30% by weight to lower the crystallization tendency of the glass frit and maximize the chemical durability, adhesion strength with the glass substrate.
- P 2 O 5 included in the glass frit according to the present invention, P 2 O 5 ,
- the content of V 2 O 5 and TeO 2 is preferably contained in order to satisfy the following relationship in terms of plastic stability related to crystallization tendency.
- the glass transition point of the glass frit may be lowered to lower the temperature at which sealing is possible, but at the same time, it is desirable to have an optimal ratio in the relationship between P 2 O 5 and TeO 2 because the crystallization tendency of the glass frit increases. Do. Accordingly, it is very preferable that the glass frit according to the present invention has a composition ratio that satisfies all the above relations.
- the glass frit according to the present invention preferably has a thermal expansion coefficient of 80 to 100 x 10 -7 /°C in terms of matching the thermal expansion coefficient with a glass substrate, and preferably has a softening point of 400°C or less. Since the thermal window coefficient is within the range of 80 to 100 x 10 -7 /°C, the glass frit according to the present invention can reduce the occurrence of deterioration in adhesion, thereby improving sealing reliability. In addition, the glass frit according to the present invention has a softening point of 400° C. or less, so that the sealing process of the glass substrate can be performed at a low temperature of 400° C. or less.
- the glass frit according to the present invention has an advantageous effect of having a low thermal expansion coefficient and lowering a softening point even if it does not include an inorganic filler or is included in a minimum content by having the above-mentioned component system and composition ratio.
- the glass frit according to the present invention may include a small amount of an inorganic filler.
- the inorganic filler is a crystalline inorganic particle having a low coefficient of thermal expansion, and specifically, one of zirconium phosphate, zirconium phosphate tungstate, zirconium, Li 2 O-Al 2 O 3 -SiO 2 , beta-eucryptite and zirconium tungstate The above can be used.
- the glass frit paste according to the present invention includes 100 parts by weight of the aforementioned glass frit and 10 to 100 parts by weight of the organic vehicle.
- the viscosity of the paste is too high or too low, so the application process may be difficult.
- the organic vehicle may include an organic solvent and an organic binder.
- the organic solvent may be a solvent such as ⁇ - terpineol or butyl carbitol, and the organic binder may be ethyl cellulose, but is not limited thereto.
- Vacuum glass assembly refers to an assembly comprising two or more glass substrates and a vacuum maintained between the two or more glass substrates.
- the vacuum glass assembly can also be used in household appliances such as refrigerators, microwave ovens and washing machines, or in electronic components of many electronic devices.
- the vacuum glass assembly can be used for building windowpanes applied to buildings.
- the glass frit according to the present invention can be used as a sealing material in the vacuum glass assembly.
- the glass frit paste according to the present invention When the glass frit paste according to the present invention is applied as a sealing material, a sealing process is possible at less than 400° C. corresponding to a low temperature. Therefore, when the glass frit paste according to the present invention is applied as a sealing material, the risk of breakage of the glass substrate is lowered and it has an advantageous effect of lowering the process cost.
- the vacuum glass assembly comprises: a first glass substrate; A second glass substrate spaced apart from the first glass substrate; And a sealing material arranged along the edges of the first or second glass substrate, sealing the first and second glass substrates and sealing the space between the first and second glasses.
- the paste according to claim is applied and fired to form.
- the first glass substrate and the second glass substrate of the present invention may be selected according to the needs of the article to which the vacuum glass assembly is applied, and is not particularly limited.
- the glass frit paste mentioned above is used as a sealing material.
- Glass frits having a composition ratio shown in Table 1 below were prepared.
- the raw materials of each component were thoroughly mixed for 3 hours in a V-mixer.
- NH 4 H 2 PO 4 was used as the raw material of BaCO 3 and P 2 O 5 , and the rest of the components were the same as those listed in Table 1.
- the mixed material was sufficiently melted for 1 hour at 800 to 1000°C, and quenched on a quenching roller to obtain a glass cullet.
- Example Comparative example One 2 3 4 One 2 3 4 P 2 O 5 17.3 13 16.9 16.7 19.5 21.2 21.2 17.8 V 2 O 5 53.3 67.5 51.9 55.6 59.9 65.9 65.9 66.7 CuO 4.3 4.5 3 2 0 0 4.8 0 ZnO 3.2 3.4 2.1 3 0 3 3 0 BaO 1.8 1.9 0 0 7.5 0 0 9.1 Bi 2 O 3 0 0 14.8 0 0 0 0 0 TeO 2 18.3 7.8 11.3 11.6 13.1 7.1 5.1 0 Ag 2 O 1.8 1.9 0 11.1 0 2.8 0 6.4
- the glass frit prepared as described above was mixed in an appropriate ratio to prepare a paste.
- a three roll mill was used for uniform mixing.
- the glass transition point was measured at a heating rate of 10°C/min.
- the thermal expansion coefficient was measured using a TMA equipment (TMA-Q400 TA instrument) at a heating rate of 10°C/min.
- the glass frits prepared in Examples and Comparative Examples were prepared in pellet form on 100mmx25mmx5mmH glass plates, covered with glass plates of the same size, and sealed at 400°C to measure the strength using MTS. (Measurement equipment: R&B RB301)
- Example Comparative example One 2 3 4 One 2 3 4 Glass transition temperature (°C) 299.1 263.77 298.1 287.26 289.3 285.61 295.23 271.05 Coefficient of thermal expansion (CTE(x10 -7 /°C)) 90 91.07 90.01 91.89 93.82 85.65 75.67 87.27 Half Ball temperature (°C) 380 394 380 360 380 365 370 340 Water resistance evaluation ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ Plastic stability evaluation ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ Adhesive strength ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇
- the embodiment according to the present invention is not only possible to fire at a low temperature because the half ball temperature is 400° C. or less, and the thermal expansion coefficient is 90 to 100, so that it is matched with the glass substrate. It can be confirmed that both the plastic stability and the adhesive strength are excellent.
- the comparative examples are for a glass frit having a P 2 O 5- V 2 O 5- TeO 2 component system, which has a relatively good value for a half ball temperature and a coefficient of thermal expansion, but has a water resistance, plastic stability, and adhesive strength as compared with Examples. It is judged that they are all unsatisfactory and their reliability is deteriorated.
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
Description
성분(중량%) | 실시예 | 비교예 | ||||||
1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | |
P2O5 | 17.3 | 13 | 16.9 | 16.7 | 19.5 | 21.2 | 21.2 | 17.8 |
V2O5 | 53.3 | 67.5 | 51.9 | 55.6 | 59.9 | 65.9 | 65.9 | 66.7 |
CuO | 4.3 | 4.5 | 3 | 2 | 0 | 0 | 4.8 | 0 |
ZnO | 3.2 | 3.4 | 2.1 | 3 | 0 | 3 | 3 | 0 |
BaO | 1.8 | 1.9 | 0 | 0 | 7.5 | 0 | 0 | 9.1 |
Bi2O3 | 0 | 0 | 14.8 | 0 | 0 | 0 | 0 | 0 |
TeO2 | 18.3 | 7.8 | 11.3 | 11.6 | 13.1 | 7.1 | 5.1 | 0 |
Ag2O | 1.8 | 1.9 | 0 | 11.1 | 0 | 2.8 | 0 | 6.4 |
성분(중량%) | 실시예 | 비교예 | ||||||
1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | |
유리전이온도(℃) | 299.1 | 263.77 | 298.1 | 287.26 | 289.3 | 285.61 | 295.23 | 271.05 |
열팽창계수(CTE(x10-7/℃)) | 90 | 91.07 | 90.01 | 91.89 | 93.82 | 85.65 | 75.67 | 87.27 |
Half Ball 온도(℃) | 380 | 394 | 380 | 360 | 380 | 365 | 370 | 340 |
내수성 평가 | ○ | ○ | ○ | ○ | Х | Х | Х | Х |
소성 안정성 평가 | ◎ | ○ | ◎ | ◎ | Х | Х | Х | Х |
접착 강도 | ○ | ○ | ○ | ○ | Х | Х | Х | Х |
Claims (8)
- P2O5 10~20 중량%,V2O5 50~70 중량%,TeO2 5~20 중량%,CuO 1~5 중량%,BaO 및 ZnO 가운데 1종 이상 1~20 중량% 및Bi2O3, 및 Ag2O 가운데 1종 이상 1~30 중량%를 포함하는,글라스 프릿.
- 제 1항에 있어서,상기 P2O5, V2O5, 및 TeO2의 함량은 하기 관계식을 만족하는 것을 특징으로 하는 글라스 프릿.[관계식]V2O5(중량%)/P2O5(중량%) < 3.5P2O5 (중량%) + TeO2 (중량%) > 25
- 제 1항에 있어서,상기 글라스 프릿은소성 후 열팽창 계수(CTE)가 80 ~ 100 x 10-7/℃의 범위 내인 것을 특징으로 하는 글라스 프릿.
- 제1항에 있어서,연화점이 400 ℃ 이하인 것을 특징으로 하는 글라스 프릿 페이스트.
- 제1항 내지 제4항 가운데 어느 한 항에 기재된 글라스 프릿 100 중량부 및 유기 비히클 10 ~ 100 중량부를 포함하는글라스 프릿 페이스트.
- 제1 유리 기재;상기 제1 유리 기재에 대향하도록 이격 배치된 제2 유리 기재; 및상기 제1 또는 제2 유리 기재의 가장자리를 따라 배열되며, 상기 제1 및 제2 유리 기재를 합착하고 상기 제1 및 제2 유리 사이 공간을 밀폐하는 실링재;를 포함하며,상기 실링재는 제5항에 기재된 페이스트가 도포되고 소성되어 형성되는진공 유리 조립체.
- 제6항에 따른 진공 유리 조립체를 포함하는 가전 제품.
- 제6항에 따른 진공 유리 조립체를 포함하는 건축용 창유리.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201980089730.4A CN113329980A (zh) | 2019-01-30 | 2019-02-07 | 无铅系低温烧制玻璃料、浆料及利用这些的真空玻璃组件 |
US17/424,849 US20220098088A1 (en) | 2019-01-30 | 2019-02-07 | Low-temperature-fired lead-free glass frit, paste, and vacuum glass assembly using same |
AU2019426778A AU2019426778B2 (en) | 2019-01-30 | 2019-02-07 | Low-temperature-fired lead-free glass frit, paste, and vacuum glass assembly using same |
EP19912809.1A EP3919456B1 (en) | 2019-01-30 | 2019-02-07 | Low temperature-calcined lead-free glass frit, paste, and vacuum glass assembly using the same |
Applications Claiming Priority (2)
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KR1020190012256A KR102217222B1 (ko) | 2019-01-30 | 2019-01-30 | 무연계 저온 소성 글라스 프릿, 페이스트 및 이를 이용한 진공 유리 조립체 |
KR10-2019-0012256 | 2019-01-30 |
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WO2020158982A1 true WO2020158982A1 (ko) | 2020-08-06 |
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PCT/KR2019/001550 WO2020158982A1 (ko) | 2019-01-30 | 2019-02-07 | 무연계 저온 소성 글라스 프릿, 페이스트 및 이를 이용한 진공 유리 조립체 |
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US (1) | US20220098088A1 (ko) |
EP (1) | EP3919456B1 (ko) |
KR (1) | KR102217222B1 (ko) |
CN (1) | CN113329980A (ko) |
AU (1) | AU2019426778B2 (ko) |
WO (1) | WO2020158982A1 (ko) |
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EP3757079A4 (en) * | 2018-02-23 | 2021-12-22 | LG Electronics Inc. | LOW-TEMPERATURE BAKED LEAD-FREE GLASS FRIT, DOUGH AND USER VACUUM GLASS ASSEMBLY |
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- 2019-02-07 EP EP19912809.1A patent/EP3919456B1/en active Active
- 2019-02-07 US US17/424,849 patent/US20220098088A1/en active Pending
- 2019-02-07 WO PCT/KR2019/001550 patent/WO2020158982A1/ko unknown
- 2019-02-07 CN CN201980089730.4A patent/CN113329980A/zh active Pending
- 2019-02-07 AU AU2019426778A patent/AU2019426778B2/en active Active
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Also Published As
Publication number | Publication date |
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EP3919456B1 (en) | 2024-05-29 |
EP3919456A4 (en) | 2023-01-11 |
CN113329980A (zh) | 2021-08-31 |
KR20200094900A (ko) | 2020-08-10 |
EP3919456A1 (en) | 2021-12-08 |
AU2019426778A1 (en) | 2021-09-23 |
US20220098088A1 (en) | 2022-03-31 |
KR102217222B1 (ko) | 2021-02-19 |
AU2019426778B2 (en) | 2023-05-25 |
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