KR100491015B1 - Composite of a corrosion aqueous solution to surface handling of a glass reflection - Google Patents
Composite of a corrosion aqueous solution to surface handling of a glass reflection Download PDFInfo
- Publication number
- KR100491015B1 KR100491015B1 KR10-2002-0059797A KR20020059797A KR100491015B1 KR 100491015 B1 KR100491015 B1 KR 100491015B1 KR 20020059797 A KR20020059797 A KR 20020059797A KR 100491015 B1 KR100491015 B1 KR 100491015B1
- Authority
- KR
- South Korea
- Prior art keywords
- fluoride
- weight
- glass
- potassium
- sodium
- Prior art date
Links
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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K13/00—Etching, surface-brightening or pickling compositions
- C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
- C09K13/08—Etching, surface-brightening or pickling compositions containing an inorganic acid containing a fluorine compound
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
본 발명은 유리 표면에 미세한 요철을 형성시켜 빛을 산란 반사시키는 저반사를 위한 산 처리의 부식 수용액의 조성물에 관한 것으로, 본 발명은 플루오르화염 0.5 - 50중량%, 계면활성제 5 - 40%, 황산염 0.05 - 10중량% 및 올리고당 0.5 - 10중량% 로 조성된 부식 수용액조성물로 여기에서 플루오르화염은 플루오르화 암모늄(NH4F), 플루오르화수소 암모늄(NH4HF2), 플루오르화 나트륨(NaF), 플루오르화수소 나트륨(NaHF2), 플루오르화 칼륨(KF) 및 플루오르화수소 칼륨(KHF2)과 같은 플루오르화 음이온을 줄 수 있는 염이고, 계면활성제는 디옥틸 설포석시네이트(dioctyl sulfosuccinate) 및 염화 스테아릴 디메틸 벤질 암모늄, 염화 디스테아릴 디메틸 암모늄, 염화 스테아릴 트리메틸 암모늄과 같은 R1R2R3R4N+X- 구조의 양이온 계면활성제인데, 여기에서 R1, R2, R3 및 R4는 수소 혹은 탄소수 1 - 30개를 포함한 알킬 및 아릴기이고, X는 플루오르, 염소, 부롬 및 요오드와 탄소수 1 - 10개의 카르복실산 음이온이며, 황산염은 칼슘, 나트륨, 칼륨, 마그네슘 및 바륨의 황산염이고, 올리고당은 포도당 및 과당과 같은 단당과 자당, 메가당 및 젖당과 같은 이당류의 당류로 된 것이다.The present invention relates to a composition of a corrosion aqueous solution of acid treatment for low reflection to form fine irregularities on the glass surface to scatter and reflect light, the present invention is 0.5-50% by weight fluoride salt, 5-40% surfactant, sulfate Corrosion aqueous composition composed of 0.05-10% by weight and 0.5-10% by weight of oligosaccharide, wherein the fluoride salt is ammonium fluoride (NH 4 F), ammonium bifluoride (NH 4 HF 2), sodium fluoride (NaF), sodium hydrogen fluoride (NaHF 2) ), Salts capable of giving fluorinated anions such as potassium fluoride (KF) and potassium hydrogen fluoride (KHF2), and the surfactants are dioctyl sulfosuccinate and stearyl dimethyl benzyl ammonium chloride, disulfide chloride Cationic surfactants of the structure R1R2R3R4N + X-, such as tearyl dimethyl ammonium, stearyl trimethyl ammonium chloride, wherein R1, R2, R3 and R4 are hydrogen or Alkyl and aryl groups containing from 1 to 30 minorities, X is fluorine, chlorine, bromine and iodine and carboxylic acid anions of 1 to 10 carbon atoms; sulfates are sulfates of calcium, sodium, potassium, magnesium and barium, oligosaccharides Is a sugar of monosaccharides such as glucose and fructose and disaccharides such as sucrose, mega sugar and lactose.
Description
본 발명은 유리 표면에 미세한 요철을 형성시켜 빛을 산란 반사시키는 저반사를 위한 산 처리의 부식 수용액의 조성물에 관한 것이다.The present invention relates to a composition of an aqueous solution of corrosion of acid treatment for low reflection to form fine irregularities on the glass surface to scatter and reflect light.
주지하다시피, 저반사 표면 처리된 유리는 화장품의 용기 또는 고급 술병으로부터 일반 TV수상기 내지는 컴퓨터의 모니터에 이르기까지 다양한 용도로 널리 쓰이고 있다.As is well known, low-reflective surface-treated glass is widely used for a variety of applications, from cosmetic containers or high-end bottles to general television sets or computer monitors.
또한 판유리를 저반사 표면 처리를 하면 그때 생기는 반투명도로 인하여 질감과 촉감이 우수하고 외관에서도 미려하며, 긁힘 현상이 없기 때문에 고급가구 및 건축용 내장재로 널리 사용이 된다.In addition, the low-reflective surface treatment of the glass plate is excellent in texture and feel due to the translucency generated at that time, beautiful in appearance, and scratch-free, so it is widely used for high-quality furniture and building interior materials.
이러한 우수성에 의하여 유리의 표면을 저반사시키는 기존의 방법은 크게 3가지로 분류할 수 있는데, 그 각각의 처리방법과 기술적인 문제점은 다음과 같다.Due to this excellence, the existing methods of low reflection of the surface of the glass can be classified into three types, each of the treatment methods and technical problems are as follows.
가. 첫 번째 처리방법으로는 플루오르화수소를 주성분으로 한 산용액을 이용하여 유리의 표면에 요철을 생성시켜 주는 방법으로, 전구 및 화장품병 등에 이용하고 있는 프로스트처리(Frosting) 방법이 있다.end. The first treatment method is to generate unevenness on the surface of the glass by using an acid solution containing hydrogen fluoride as a main component, and there is a frosting method used in light bulbs and cosmetic bottles.
이 방법은 간단하게 유리의 표면을 저반사 처리할 수 있다는 장점이 있으나, 도 1에서 보는 바와 같이 유리의 표면에 생성되는 요철의 크기가 매우 작아 투시력이 매우 낮아지고, 또한 전반적으로 표면 요철이 거칠고 불균일하여 질감이 떨어지는 단점이 있다.This method has the advantage that the surface of the glass can be simply anti-reflective, but as shown in FIG. 1, the unevenness generated on the surface of the glass is very small, so the perspective power is very low, and the overall surface unevenness is rough. There is a disadvantage that the texture is inferior because of unevenness.
그리고 이러한 처리방법은 플루오르화수소를 사용하기 때문에 이에 따른 환경 공해가 유발되어 폐기물 처리시 많은 비용이 드는 비경제성의 문제점을 가지고 있었다.In addition, since this treatment method uses hydrogen fluoride, it causes environmental pollution and has a costly problem of costly waste disposal.
나. 두 번째의 다른 처리방법으로는 1단계로 연마 및 사취(Sandblasting)와 같은 물리적인 방법으로 유리의 표면에 미세한 균열을 형성시킨 후 2단계에서 1단계 처리된 유리를 플루오르화수소를 주성분으로 한 산 용액에서 부식시켜, 유리 표면의 미세한 균열이 요철로 성장되게 하는 방법이다.I. The second alternative treatment method is an acid solution containing hydrogen fluoride as the main component after forming fine cracks on the surface of glass by physical methods such as sandblasting and sanding in one step. To corrode in order to allow minute cracks on the glass surface to grow into irregularities.
이러한 방법으로 처리된 유리의 표면은 0.1mm 정도 크기의 둥근형 요철이 생김을 도 2에서와 같이 확인할 수 있다.The surface of the glass treated in this way can be confirmed that the round irregularities of about 0.1mm size as shown in FIG.
그리고 이 방법으로 표면 처리된 판유리는 투명도와 질감이 우수하여 고급 건축용 내장재로 사용될 수 있으나, 2번의 표면처리 공정을 거쳐야 하기 때문에 제조원가를 상승시키는 문제점을 가지고 있는 것이다.In addition, the plate glass surface-treated in this way is excellent in transparency and texture can be used as a high-grade building interior material, but it has a problem of increasing the manufacturing cost because it has to go through two surface treatment process.
또한 이러한 처리 방법에서도 유리표면의 부식을 위하여 사용되는 플루오르화수소의 폐기물 처리에 많은 비용이 소요되는 비경제성도 함께 내재하고 있는 것이다.In addition, the treatment method also has inherent inconsistency in cost, which is a costly waste treatment of hydrogen fluoride used for corrosion of the glass surface.
다. 세 번째의 또 다른 처리방법으로는 위의 방법과 같이 1단계에서 연마 방법으로 유리 표면에 미세 균열을 만들고, 2단계에서 산 용액으로 적셔진 내산성 연마포로 유리의 표면을 닦아주는 방법이 있는데 이는 2단계 과정에서 플루오르화수소를 연마포에 적셔주기 위한 복잡한 기기의 설계 및 장치가 요구되어 유리의 표면처리 비용을 상승시키는 요인의 문제점을 수반하고 있는 것이다. All. Another third method is to make fine cracks on the surface of the glass by polishing in the first step as above, and to clean the surface of the glass with acid-resistant polishing cloth moistened with acid solution in the second step. In the process of the step, the design and apparatus of a complicated device for soaking hydrogen fluoride in the polishing cloth is required, which entails a problem of increasing the surface treatment cost of the glass.
본 발명은 상기한 종래의 선행기술의 문제점을 해소하기 위한 새로운 용액조성물을 제공하려는 것이다.The present invention seeks to provide a new solution composition for solving the above problems of the prior art.
즉, 유리의 표면에 저반사 처리를 하기 위한 상기한 프로스트처리 방법에서 사용되는 플루오르화수소 대신에 플루오르화 염을 주원료로 사용하기 때문에 제조공정의 안전성을 향상시키고, 부식액 폐기물 처리비용을 절감하도록 하였다.That is, fluoride salt is used as the main raw material instead of hydrogen fluoride used in the above frost treatment method for low reflection treatment on the surface of the glass to improve the safety of the manufacturing process and to reduce the cost of waste treatment.
또한 투명도가 낮은 프로스트처리 방법의 단점을 보완하기 위하여 계면활성제 및 관련 첨가제를 부식액에 넣어 유리의 표면에 균일한 요철이 생기도록 하고, 스크래치가 쉽게 생기지 않도록 하였다.In addition, in order to compensate for the shortcomings of the low-transparency frosting method, a surfactant and related additives were added to the corrosive solution so that uniform irregularities were formed on the surface of the glass, and scratches were not easily generated.
상기한 목적을 실현시키기 위한 본 발명을 보다 구체적으로 상세히 설명한다.The present invention for realizing the above object will be described in more detail.
본 발명의 부식 용액은 플루오르화염을 0.5 - 50중량%, 계면활성제 5 - 40%, 황산염 0.05 - 10중량% 및 올리고당 0.5 - 10중량%로 이루어진다.The corrosion solution of the present invention consists of 0.5-50% by weight of fluoride salt, 5-40% surfactant, 0.05-10% by weight sulfate and 0.5-10% by weight oligosaccharide.
여기에서 플루오르화염은 플루오르화암모늄(NH4F), 플루오르화수소 암모늄(NH4HF2), 플루오르화 나트륨(NaF), 플루오르화수소 나트륨(NaHF2), 플루오르화 칼륨(KF) 및 플루오르화수소 칼륨(KHF2)과 같은 플루오르화 음이온을 줄 수 있는 염을 의미한다.Fluoride salts here include fluorinated compounds such as ammonium fluoride (NH 4 F), ammonium bifluoride (NH 4 HF 2), sodium fluoride (NaF), sodium hydrogen fluoride (NaHF 2), potassium fluoride (KF) and potassium hydrogen fluoride (KHF 2). It means a salt that can give an anion.
또한 계면활성제는 디옥틸 설포석시네이트(dioctyl sulfosuccinate) 및 R1R2R3R4N+X-과 같은 양이온 계면활성제를 의미하는데 여기에서 R1, R2, R3 및 R4는 수소 혹은 탄소수 1 - 30개를 포함한 알킬 및 아릴기이고, X는 플루오르, 염소, 부롬 및 요오드와 탄소수 1 - 10개의 카르복실산 음이온을 포함한다.Surfactant also means cationic surfactants such as dioctyl sulfosuccinate and R1R2R3R4N + X-, wherein R1, R2, R3 and R4 are hydrogen or alkyl and aryl groups containing from 1 to 30 carbon atoms. And X comprises fluorine, chlorine, bromine and iodine and carboxylic acid anion having 1 to 10 carbon atoms.
예를 들면 염화 스테아릴 디메틸 벤질 암모늄, 염화 디스테아릴 디메틸 암모늄 및 염화 스테아릴 트리메틸 암모늄과 같은 양이온 계면활성제이다.Cationic surfactants such as, for example, stearyl dimethyl benzyl ammonium chloride, distearyl dimethyl ammonium chloride and stearyl trimethyl ammonium chloride.
황산염은 칼슘, 나트륨, 칼륨, 마그네슘 및 바륨의 황산염을 포함한다.Sulfates include sulfates of calcium, sodium, potassium, magnesium and barium.
올리고당은 포도당 및 과당과 같은 단당과 자당, 메가당 및 젖당과 같은 이당류를 포함한 당류를 의미한다.Oligosaccharides refer to sugars including monosaccharides such as glucose and fructose and disaccharides such as sucrose, megasaccharides and lactose.
본 발명의 상기한 부식용액을 이용하여 유리의 표면을 저반사 처리하는 방법은, 유리를 부식용액에 일정시간 동안 집어넣는 침전법과, 부식용액을 노즐을 이용하여 유리의 표면에 뿌리는 스프레이 방법이 있다.The method of low reflection treatment of the surface of the glass by using the above-mentioned corrosion solution of the present invention, the precipitation method to put the glass in the corrosion solution for a certain time, and the spray method of spraying the corrosion solution on the surface of the glass by using a nozzle have.
침전법은 공정이 간단하나 제품의 표면처리가 균일하지 못한 단점이 있고, 스프레이 방법은 표면처리가 균일하여 투명도가 좋아지는 효과는 있으나 공정이 복잡해지는 단점이 있다.The precipitation method has a disadvantage in that the process is simple but the surface treatment of the product is not uniform, and the spray method has the effect that the surface treatment is uniform and the transparency is improved, but the process is complicated.
따라서 유리의 사용목적에 따라 유리 표면 부식 처리공정을 채택하게 된다.Therefore, the glass surface corrosion treatment process is adopted according to the purpose of use of the glass.
이하, 본 발명의 실시예를 제시하여 본 발명을 더욱 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.
그러나 본 발명은 이러한 실시예에 한정되지 않는다.However, the present invention is not limited to this embodiment.
실시예Example
이 물질이 제거된 유리의 표면에 플루오르화 수소 암모늄(NH4HF2) 2중량%, 디옥틸 설포석시네이트(dioctyl sulfosuccinate) 19중량%, 자당 1중량% 및 황산칼슘 0.1중량% 의 조성을 가진 수용액을 약 3분 동안 분사시킨다.An aqueous solution having a composition of 2% by weight of ammonium hydrogen fluoride (NH 4 HF 2), 19% by weight of dioctyl sulfosuccinate, 1% by weight sucrose, and 0.1% by weight calcium sulfate was prepared on the surface of the glass from which this material was removed. Spray for 3 minutes.
이와 같이 부식 처리된 유리의 표면에 생긴 스러지를 브러쉬로 제거하면서 세척건조기를 통과시킨다.The washing dryer is passed through a brush to remove the debris formed on the surface of the corroded glass.
이와 같은 방법으로 크기가 평균 0.1mm인 다각형 모양의 요철이 도 3에서와 같이 유리의 표면에 균일하게 생긴 저반사 유리를 얻었다.In this way, a low-reflection glass in which polygonal irregularities having an average size of 0.1 mm was uniformly formed on the surface of the glass as shown in FIG. 3 was obtained.
이상과 같이 본 발명의 용액조성물은 단일 공정으로 유리의 표면에 균일하면서 조밀한 형태의 요철이 생기도록 하여 외부광의 산란이 부드럽고, 질감과 촉감이 매우 우수하며 스크래치가 쉽게 생기지 않는 효과를 기대할 수 있다.As described above, the solution composition of the present invention can produce uniform and dense irregularities on the surface of the glass in a single process, so that the scattering of external light is smooth, the texture and feel are very excellent, and scratches are not easily generated. .
또한 처리 공정의 안전성을 향상시키고, 부식용액이 환경을 오염시키지 않고 유해성 물질이 아니기 때문에 폐기물의 처리가 매우 용이하여 별도로 처리비용이 소요되지 않는 경제적 이점이 있는 것이며 품질이 더욱 고양된 저반사 유리를 제공할 수 있는 것이어서 고급의 건축가구나 건축내장재로 유용하게 보급시킬 수 있는 작용효과를 갖게 된다. In addition, it improves the safety of the treatment process, and since the corrosion solution does not pollute the environment and is not a hazardous substance, there is an economic advantage that it is very easy to treat the waste and does not require a separate treatment cost. Since it can be provided, it will have an effect that can be usefully distributed as a high-grade architect or building interior materials.
도 1은 종래의 일반적인 산 용액 처리된 유리표면의 확대사진.1 is an enlarged photograph of a glass surface treated with a conventional general acid solution.
도 2는 종래의 연마 및 사취(Sandblasting) 처리 후 일반적인 산 용액에서 부식시켜 요철을 형성한 유리 표면의 확대사진.Figure 2 is an enlarged photograph of the glass surface formed by the corrosion in a typical acid solution after conventional grinding and sandblasting treatment to form concavities and convexities.
도 3은 본 발명의 부식 수용액조성물에 의한 유리표면의 확대사진.Figure 3 is an enlarged photograph of the glass surface by the aqueous solution of corrosion of the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0059797A KR100491015B1 (en) | 2002-10-01 | 2002-10-01 | Composite of a corrosion aqueous solution to surface handling of a glass reflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0059797A KR100491015B1 (en) | 2002-10-01 | 2002-10-01 | Composite of a corrosion aqueous solution to surface handling of a glass reflection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040029507A KR20040029507A (en) | 2004-04-08 |
| KR100491015B1 true KR100491015B1 (en) | 2005-05-24 |
Family
ID=37330884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2002-0059797A KR100491015B1 (en) | 2002-10-01 | 2002-10-01 | Composite of a corrosion aqueous solution to surface handling of a glass reflection |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100491015B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2929609B1 (en) * | 2008-04-07 | 2010-05-28 | Seppic Sa | AMMONIUM ION FREE GLASS CLEANING COMPOSITION AND BIFLUORIDE ION |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994000245A1 (en) * | 1992-06-25 | 1994-01-06 | Northern Construction Agencies Limited | Improved versatile surface engaging implements |
| KR940014226A (en) * | 1992-12-31 | 1994-07-18 | 석강봉 | Corrosion liquid composition for glass surface etching and method of etching pattern on glass surface using it |
| KR950018423A (en) * | 1993-12-30 | 1995-07-22 | 김충세 | Decontamination Composition |
| US6337029B1 (en) * | 1999-01-21 | 2002-01-08 | Xim Products | Method and composition for etching glass ceramic and porcelain surfaces |
| WO2002053508A1 (en) * | 2000-12-27 | 2002-07-11 | Hiroshi Miwa | Method for preparing decorative glass using glass etching composition |
-
2002
- 2002-10-01 KR KR10-2002-0059797A patent/KR100491015B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994000245A1 (en) * | 1992-06-25 | 1994-01-06 | Northern Construction Agencies Limited | Improved versatile surface engaging implements |
| KR940014226A (en) * | 1992-12-31 | 1994-07-18 | 석강봉 | Corrosion liquid composition for glass surface etching and method of etching pattern on glass surface using it |
| KR950018423A (en) * | 1993-12-30 | 1995-07-22 | 김충세 | Decontamination Composition |
| US6337029B1 (en) * | 1999-01-21 | 2002-01-08 | Xim Products | Method and composition for etching glass ceramic and porcelain surfaces |
| WO2002053508A1 (en) * | 2000-12-27 | 2002-07-11 | Hiroshi Miwa | Method for preparing decorative glass using glass etching composition |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040029507A (en) | 2004-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6929861B2 (en) | Anti-reflective glass surface with improved cleanability | |
| CN102432185A (en) | Etching liquid and etching process for anti-dazzle glass product | |
| US20150175478A1 (en) | Textured glass surface and methods of making | |
| US3374130A (en) | Etching solution and process for producing a non-reflective surface on transparent glass | |
| JP2003002685A (en) | Glass-etching composition and method for surface processing of sand-blasted glass product | |
| JPH0585491B2 (en) | ||
| US5120605A (en) | Anti-reflective glass surface | |
| US11104604B2 (en) | Low sparkle anti-glare glass-based articles with reduced warp and methods of reducing warp in anti-glare glass-based articles | |
| CN114409265B (en) | Glass ceramic etching liquid, anti-dazzle glass ceramic, shell component and electronic equipment | |
| KR100491015B1 (en) | Composite of a corrosion aqueous solution to surface handling of a glass reflection | |
| JP6428616B2 (en) | Method for producing chemically strengthened glass | |
| KR101925563B1 (en) | Etching composition for manufacturing anti-glare glass | |
| ES2242588T3 (en) | COMPOSITIONS TO DISLUSTRATE THE GLASS, BATHS OF ATTACK ATTACK, PROCEDURE TO DISLUSTRATE THE GLASS AND DISLUSTRATED OBJECTS. | |
| CN103553350A (en) | Quartz material corrosion liquid and corrosion method | |
| CN111606573B (en) | Glass substrate with concave-convex shape and manufacturing method thereof | |
| CN105272380B (en) | A kind of preparation method and equipment of dumb light brick | |
| KR20040087386A (en) | Methode for manufacturing semitransparent glass | |
| CN102923965A (en) | Process for producing acid etched glass by flat placement method | |
| CN115677229A (en) | Frosting etching composition and preparation method and application thereof | |
| CN114772941A (en) | Polishing solution for display frosted glass and application thereof | |
| CN114615838B (en) | Shell assembly, preparation method thereof and electronic equipment | |
| KR900004123B1 (en) | Acidic solution for treating a glass surface to be low reflected and treating method therefor | |
| WO2018209798A1 (en) | Anti-glare heat-insulating fiberglass curtain wall | |
| RU2426606C2 (en) | Method of producing glass substrate with silk-like appearance | |
| CN1306912A (en) | Uncolored frosted glass ornament and its chemical production process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20080506 Year of fee payment: 4 |
|
| LAPS | Lapse due to unpaid annual fee |