JPH0340938A - Ultraviolet ray absorbing flaky glass - Google Patents
Ultraviolet ray absorbing flaky glassInfo
- Publication number
- JPH0340938A JPH0340938A JP17650789A JP17650789A JPH0340938A JP H0340938 A JPH0340938 A JP H0340938A JP 17650789 A JP17650789 A JP 17650789A JP 17650789 A JP17650789 A JP 17650789A JP H0340938 A JPH0340938 A JP H0340938A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- zno
- alkali
- amount
- na2o
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 62
- 239000003513 alkali Substances 0.000 claims abstract description 24
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 15
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract description 11
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract description 8
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 abstract description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052593 corundum Inorganic materials 0.000 abstract description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 7
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 229910011255 B2O3 Inorganic materials 0.000 abstract description 5
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract description 5
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 abstract description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052681 coesite Inorganic materials 0.000 abstract description 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- 229910052682 stishovite Inorganic materials 0.000 abstract description 3
- 229910052905 tridymite Inorganic materials 0.000 abstract description 3
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 abstract description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 abstract 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- YEAUATLBSVJFOY-UHFFFAOYSA-N tetraantimony hexaoxide Chemical compound O1[Sb](O2)O[Sb]3O[Sb]1O[Sb]2O3 YEAUATLBSVJFOY-UHFFFAOYSA-N 0.000 abstract 1
- 238000010828 elution Methods 0.000 description 16
- 239000000126 substance Substances 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000002537 cosmetic Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000003898 horticulture Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 206010042496 Sunburn Diseases 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Landscapes
- Glass Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、紫外線吸収フレーク状ガラス、特に日焼は防
止のｋめの化粧品、施設園芸に用いられる虫害防止効果
を有するプラスチックフィルム、紫外線による劣化を防
止するための塗料ないし表面保１１１Ｋに混入するのに
適した紫外線吸収フレーク状ガラスに間する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to ultraviolet-absorbing flake glass, especially cosmetics that prevent sunburn, plastic films that have an insect damage prevention effect used in greenhouse horticulture, and The ultraviolet-absorbing glass flake is suitable for inclusion in paint or surface protection 111K to prevent deterioration.
近年、酸化チタンが表面にコーティングされた微細な薄
片状雲母を含む乳液が、日焼は防止のための化粧品とし
て用いられるようになった。しかし、酸化チタンの結晶
形がアナターゼの場合は、光触媒の効果による皮膚に対
する酸化作用があり、安全衛生上の問題点が指摘される
などの不具合があった。In recent years, emulsions containing fine flaky mica coated with titanium oxide have been used as cosmetics to prevent sunburn. However, when the crystal form of titanium oxide is anatase, the photocatalytic effect causes an oxidizing effect on the skin, resulting in problems in terms of health and safety.
また、施設園芸に於いても、害虫の行動性を低下させる
ために紫外線をカットしたプラスチックフィルムが用い
られるようになったが、例えばＺｎｏ微粒子のような紫
外線遮蔽物質を均一に混入することは困難であることな
どの他にも、フィルムの強度低下という不具合があった
。更に、ベンゾフェノール系などの有機物質を紫外線吸
収剤として含有しているため、紫外線を吸収すると同時
に、これらの有機物質が分解して、紫外線の吸収能力が
低下してしまうと言う不具合もあった０本発明者らは、
これらの不具合を解決するために、先に紫外線吸収フレ
ーク状ガラスを提案した（特開昭６３−３０７１４２）
。In addition, plastic films that block ultraviolet rays have come to be used in greenhouse horticulture to reduce the behavior of pests, but it is difficult to uniformly mix in ultraviolet blocking substances such as Zno particles. In addition to this, there was also the problem of a decrease in the strength of the film. Furthermore, since it contains organic substances such as benzophenols as ultraviolet absorbers, there was a problem that at the same time as it absorbed ultraviolet rays, these organic substances decomposed, reducing its ability to absorb ultraviolet rays. 0 The inventors
In order to solve these problems, we first proposed ultraviolet absorbing flake glass (Japanese Patent Application Laid-Open No. 63-307142).
.
〔発明が解決しようとする課題〕
公知の方法でフレーク状ガラスを作る場合、ガラスの粘
性曲線と液相ン＝度は、かなりの制約を受けることにな
る。この制約条件を満たすためには、ガラス成分として
Ｎａ２Ｏ，Ｂ２５３が相当量必要とされるので、特に厚
味の薄いフレーク状ガラスは、化学的耐久性に劣る場合
があった。このため例えば化粧品に紫外線吸収フレーク
状ガラスを混入する場合などは、フレーク状ガラスから
のアルカリ溶出が心配された。[Problems to be Solved by the Invention] When glass flakes are produced by known methods, the viscosity curve and liquid phase ratio of the glass are subject to considerable restrictions. In order to satisfy this constraint, a considerable amount of Na2O and B253 are required as glass components, so particularly thin glass flakes may have poor chemical durability. For this reason, for example, when ultraviolet-absorbing glass flakes are mixed into cosmetics, there is concern about alkali elution from the glass flakes.
本発明は、化学的耐久性に優れた、特にアルカリ溶出の
少ないフレーク状ガラスを提供することを目的とする。An object of the present invention is to provide a glass flake that has excellent chemical durability and particularly exhibits little alkali elution.
本発明の要旨は重量％で表示して本質的に下記組成
５ＩＯ２５０〜６５％
８２０３ ３〜１０％
Ａｌ２Ｏ３３〜１４％
Ｍｇ０Ｏ−４％
ＣａＯ４〜２０％
ＺｎＯ０〜１０％
Ｌｉ２Ｏ０〜３％
Ｎ ａ ２０ １〜８％
Ｋ２Ｏ ０〜４％
Ｆｅ２Ｏ３２〜７％
ＣｅＯ２１〜５％
Ｔ Ｉ ０２ ０〜３％
（Ｌ ｉ２０＋Ｎａ２Ｏ＋Ｋ２Ｏ）／ （Ａ Ｉ２Ｏ
３＋Ｚｎ０） ≦２． ０
を有し、これらの合計の成分が少なくとも９５重量％で
あるガラス組成物からなることを特徴とする紫外線吸収
フレーク状ガラスである。The gist of the present invention is essentially the following composition expressed in weight%: 5IO250-65% 8203 3-10% Al2O33-14% Mg0O-4% CaO4-20% ZnO0-10% Li2O0-3% Na20 1- 8% K2O 0-4% Fe2O32-7% CeO21-5% T I 02 0-3% (Li20+Na2O+K2O)/(A I2O
3+Zn0) ≦2. 0 and the total of these components is at least 95% by weight.
フレーク製造時に良好な作業性を確保するために、該ガ
ラスの作業温度（ガラスの粘度が１０の３乗になる温度
）は１２５０℃以下で、かつガラスの液相温度が作業温
度より５０℃以上、より好ましくは７５℃以上、低いこ
とが好ましい、更に好ましくは、高温での作業を避ける
ためにガラスの作業温度は １２００℃以下で液相温度
は１１００℃以下である。In order to ensure good workability during flake production, the working temperature of the glass (the temperature at which the viscosity of the glass becomes the cube of 10) is 1250°C or lower, and the liquidus temperature of the glass is 50°C or higher than the working temperature. More preferably, the working temperature of the glass is 1200°C or less and the liquidus temperature is 1100°C or less in order to avoid working at high temperatures.
また、該フレーク状ガラスのアルカリ溶出量は、溶出ア
ルカリを中和するのに必要な０．２規定の硫酸溶液の量
で表示して１ｍｌ以下である（試験法は実施例参照）。Further, the amount of alkali eluted from the flaky glass is 1 ml or less expressed as the amount of 0.2N sulfuric acid solution required to neutralize the eluted alkali (see Examples for the test method).
５Ｌ０２はＢ２Ｏ３、Ａ ｌ ２０ ｉとともにガラス
の骨格を形成する。５ｉＯａの量が６５％を越えるとガ
ラスの溶解性が低下するとともに、ガラスの作業温度が
上昇して好ましくない、ＳｉＯ２が５０％未満ではガラ
スのアルカリ溶出量が増えて好ましくない。５Ｌ０２の
より好ましい［６は５２−６２％である。5L02 forms a glass skeleton together with B2O3 and Al20i. If the amount of 5iOa exceeds 65%, the solubility of the glass decreases and the working temperature of the glass increases, which is undesirable. If the amount of SiO2 exceeds 50%, the amount of alkali elution from the glass increases, which is undesirable. More preferred [6 of 5L02 is 52-62%.
Ｂ２Ｏ３は１０％を越えるとガラスのアルカリ溶出量が
増大して好ましくない。Ｂ２Ｏ３が３％未満ではガラス
の粘性が増大し、作業温度が上昇して好ましくない−８
２０３のより好ましい範囲は４−８％である。If B2O3 exceeds 10%, the amount of alkali elution from the glass increases, which is not preferable. If B2O3 is less than 3%, the viscosity of the glass increases and the working temperature increases, which is undesirable.
A more preferred range for 203 is 4-8%.
Ａｌ２Ｏ３はガラスの化学的耐久性を向上させ、アルカ
リ溶出量を減少させるので必須成分である。Al2O3 is an essential component because it improves the chemical durability of the glass and reduces the amount of alkali elution.
Ａｌ２０ａが１４％を越えるとガラスの粘性が増大して
溶融が困難になる＠ Ａ Ｉ ２０３が３％未満では
ガラスのアルカリ溶出量が増大する。Ａｌ２Ｏ３のより
好ましい範囲は３−１２％である。When Al20a exceeds 14%, the viscosity of the glass increases and melting becomes difficult.@When Al203 is less than 3%, the amount of alkali elution from the glass increases. A more preferred range of Al2O3 is 3-12%.
ＭｇＯとＣａＯはガラスの融剤である。同時にこれらは
ガラスの粘性曲線を適切に保つために使用され、更に化
学的耐久性な保つためにも使用される。ＭｇＯは４％を
越えるとガラスの液相温度が高くなるので好ましくない
。ＭｇＯのより好ましい範囲は３％以下であるａｃａｏ
が２０％を越えるとガラスの軟化点が上昇し、いわゆる
短いガラスとなって、ガラスの作業性が低下する。Ｃａ
Ｏが４％未満ではガラスのアルカリ溶出量が増大して好
ましくない＊ＣａＯのより好ましい範囲は５−１９％で
・ある。MgO and CaO are fluxing agents for glass. At the same time, they are used to maintain the appropriate viscosity curve of the glass and also to maintain its chemical durability. If MgO exceeds 4%, the liquidus temperature of the glass increases, which is not preferable. A more preferable range of MgO is 3% or less.
If it exceeds 20%, the softening point of the glass increases, resulting in a so-called short glass, which reduces the workability of the glass. Ca
If O is less than 4%, the amount of alkali elution from the glass increases, which is undesirable. *The more preferable range of CaO is 5-19%.
Ｚｎ○はガラスの化学的耐久性を向上させる好ましい成
分である。特に、ガラスのアルカリ溶出量の減少のみな
らず、酸性の薬品に対する化学的耐久性をも向上させる
場合には、ガラス構成成分としてはＣａＯを減少させて
ＺｎＯを用いなければならない＊ＺｎＯは高価であり、
１０％を越えてもアルカリ溶出量はそれ以上減少しない
ので１０％０％迄用＃ Ｚ ｎ Ｏのより好ましい範
囲は７％以下である。Zn○ is a preferred component that improves the chemical durability of glass. In particular, when not only reducing the amount of alkali elution from glass but also improving its chemical durability against acidic chemicals, it is necessary to reduce CaO and use ZnO as a glass constituent component. *ZnO is expensive. can be,
Even if it exceeds 10%, the amount of alkali elution does not decrease any further, so a more preferable range of #ZnO for use up to 10% is 7% or less.
Ｌ ｉ２０．Ｎａ２Ｏ５Ｋ２Ｏは、ガラスの融剤であり
、同時にガラスの粘性を調整するのに用いられる。Ｌｉ
２Ｏは特に優れた融剤であり、ガラスの高温粘性を下げ
る作用があるが高価であるので３％迄用いてもよいｅ
ＬＩ２０のより好ましい範囲は０．０５−２％である
。Ｎａ２Ｏが８％を越えるとガラスのアルカリ溶出量が
増大して好ましくない。L i20. Na2O5K2O is a fluxing agent for the glass and is used to adjust the viscosity of the glass at the same time. Li
2O is a particularly excellent fluxing agent and has the effect of lowering the high-temperature viscosity of glass, but it is expensive, so it may be used up to 3%.
A more preferred range of LI20 is 0.05-2%. If Na2O exceeds 8%, the amount of alkali elution from the glass increases, which is not preferable.
ＮａａＯが１％未満ではガラスの粘性が上昇して溶融が
困難になるとともに、作業性も低下するので好ましくな
い、 Ｎａ２Ｏのより好ましい範囲は１．５−７％で
ある。If the NaaO content is less than 1%, the viscosity of the glass will increase, making it difficult to melt the glass, and the workability will also decrease, which is undesirable. A more preferable range of Na2O is 1.5-7%.
Ｋ２ＯもＮａ２Ｏと同等の作用を示すが高価であるので
４％迄用いる。Ｋ２Ｏのより好ましい範囲は０．３−４
％である。但しＮａ２Ｏ及びＬｉ２Ｏと共存すると、い
わゆる混合アルカリ効果によって化学的耐久性は飛躍的
に向上する。したがって、Ｌｉ２ｒ、Ｋ２ＯおよびＮａ
２Ｏの３成分のいずれもを、合計で２−１０％含有する
ことが最も好ましい。K2O also exhibits the same effect as Na2O, but is expensive, so it is used up to 4%. A more preferable range of K2O is 0.3-4
%. However, when it coexists with Na2O and Li2O, the chemical durability is dramatically improved due to the so-called mixed alkali effect. Therefore, Li2r, K2O and Na
Most preferably, the total content of all three components of 2O is 2-10%.
但し、Ｌｉ２Ｏ、Ｎａ２Ｏ，Ｋ２Ｏは、アルカリ溶出量
を増大させる成分であり、Ａｌ２Ｏ３とＺｎＯはアルカ
リ溶出を抑制する成分であるので、 （Ｌ ｊ２０＋Ｎ
ａ２Ｏ＋Ｋ２Ｏ）／ （Ａ１２０３＋Ｚｎ０）≦２．０
であることが必要である。However, since Li2O, Na2O, and K2O are components that increase the amount of alkali elution, and Al2O3 and ZnO are components that suppress alkali elution, (L j20 + N
a2O+K2O)/(A1203+Zn0)≦2.0
It is necessary that
Ｆ ｅ２０３、ＣｅＯ２、Ｔ ｉ Ｏ２は紫外線吸収成
分である。Ｆｅ２Ｏ３は紫外線吸収能が大きいので本発
明では必須の紫外線吸収成分である。 Ｆｅ２Ｏ３が
７％を越えるとガラスの着色が激しくなるので好ましく
ない。Ｆｅ２Ｏ３が２％未満では紫外線吸収効果が小さ
い、ＣｅＯ２はそれ自身が紫外線吸収成分であるととも
に、ガラス中の酸化鉄を酸化して３価のＦｅとする効果
がある。紫外線吸収効果があるのは３価のＦｅであるか
ら、 Ｆｅ２Ｏ３とＣｅＯ２との組合せによってガラス
の紫外線吸収効果は増大される＊ Ｃｅ Ｏ２が６％
以上になっても紫外線吸収効果はそれほど大きくならな
いので、ＣｅＯ２は５％迄用いる。ＣｅＯｔが１％未満
ではガラスの紫外線吸収効果が小さい。Fe203, CeO2, and T i O2 are ultraviolet absorbing components. Since Fe2O3 has a large ultraviolet absorption ability, it is an essential ultraviolet absorption component in the present invention. If Fe2O3 exceeds 7%, the glass will be heavily colored, which is not preferable. If Fe2O3 is less than 2%, the ultraviolet absorption effect is small. CeO2 itself is an ultraviolet absorbing component and has the effect of oxidizing iron oxide in the glass to trivalent Fe. Since it is trivalent Fe that has an ultraviolet absorption effect, the ultraviolet absorption effect of glass is increased by the combination of Fe2O3 and CeO2 * CeO2 is 6%
Even if the amount exceeds 5%, the ultraviolet absorption effect does not become so great, so CeO2 is used up to 5%. If CeOt is less than 1%, the ultraviolet absorption effect of the glass is small.
Ｃｅ０ｚのより好ましい範囲は１−３％である。A more preferable range of Ce0z is 1-3%.
ＴｉＯ２の紫外線吸収能は、特に近紫外域では小古いの
で、ガラスの必須成分ではない、しかし、ＴｉＯ２は化
学的耐久性を高める作用があるので３％迄用いることが
出来る。ＴｉＯ２が３％を越えるとガラスの着色が激し
くなり好ましくない。The ultraviolet absorption ability of TiO2 is low, especially in the near-ultraviolet region, so it is not an essential component of glass.However, TiO2 has the effect of increasing chemical durability, so it can be used up to 3%. If TiO2 exceeds 3%, the glass becomes strongly colored, which is not preferable.
ＴｉＯ２のより好ましい範囲は０．５−３％である。A more preferred range of TiO2 is 0.5-3%.
以上、紫外線吸収フレーク状ガラス成分の作用を述べた
が、本発明の要旨を損なわない範囲で、以下の成分をガ
ラスに含有させることが出来る。Although the effects of the ultraviolet absorbing flaky glass component have been described above, the following components can be included in the glass without detracting from the gist of the present invention.
ＳｒＯ，Ｂａｄ、ＺｒＯ２は、各々３％迄含有できる−
Ｆ、ＣＩ、ＳＯ３、Ａｓ２Ｏ３，５ｂ２０３は、各
々１％迄含有できる。これら成分の合計は５％未満であ
ることが好ましい。SrO, Bad, and ZrO2 can each be contained up to 3%.
F, CI, SO3, As2O3, 5b203 can each be contained up to 1%. Preferably, the sum of these components is less than 5%.
実施例及び比較例について更に詳しく述べる。 Examples and comparative examples will be described in more detail.
第１表に示す組成を有する硝子を溶融して作業温度、液
相温度を測定した。叉、これらの硝子を用いて公知の方
法により、厚味１ミクロン、平均粒径１０ミクロンのフ
レーク状ガラスを製造して、アルカリ溶出量を求めた。Glass having the composition shown in Table 1 was melted and the working temperature and liquidus temperature were measured. Using these glasses, glass flakes having a thickness of 1 micron and an average particle diameter of 10 microns were produced by a known method, and the amount of alkali elution was determined.
これらの結果を第１表に示す、微粒となったフレーク状
ガラスの紫外線透過率は、微粒による光の散乱のために
測定が困難であるので、ソーダ、石灰ガラスに於ける３
２０ｎｍでの、Ｆｅ２ｒｓ、 ＣｅＯ２、Ｔｉ０ａの吸
光係数を用いて計算した、厚味１０ミクロンのフレーク
状ガラスの紫外線透過率を第１表に示した。These results are shown in Table 1. The ultraviolet transmittance of fine glass flakes is difficult to measure due to the scattering of light by the fine particles.
Table 1 shows the ultraviolet transmittance of glass flakes with a thickness of 10 microns, calculated using the extinction coefficients of Fe2rs, CeO2, and Ti0a at 20 nm.
アルカリ溶出量は次のようにして求めた。フレーク状ガ
ラス５グラムを精秤してとり、水１００ミリリットルを
加えて水浴中で１時間加熱した後、吸引濾過した濾液を
０． ２規定の硫酸で中和滴定し、必要とした硫酸量を
ミリリットルで示した。The amount of alkali elution was determined as follows. Precisely weigh 5 grams of glass flakes, add 100 ml of water, heat in a water bath for 1 hour, and filter the filtrate with 0.0 ml of water. Neutralization titration was performed with 2N sulfuric acid, and the amount of sulfuric acid required was shown in milliliters.
比較例は実施例に較べて、Ｌ ｉ ２０ ＋ Ｎ ａ２
０ ＋Ｋ２ＯのＡｌ２Ｏ５＋ＺｎＯに対する比が２．
０より大きいために、アルカリ溶出量が高く好ましくな
い。Compared to the example, the comparative example has L i 20 + N a2
0 + K2O to Al2O5 + ZnO ratio is 2.
Since it is larger than 0, the amount of alkali elution is high, which is not preferable.
以上に示したように、本発明によるガラスを用いて製造
されたフレーク状ガラスは、ガラスが備えている適切な
作業温度と液相温度とのために作業性よく製造すること
ができ、アルカリ溶出が少なく、且つ紫外線吸収効果が
大きいため、日焼は止め化粧品、施設園芸用プラスチッ
クフィルム混入剤などに使用して十分な効果があること
は明かである。As shown above, the glass flakes produced using the glass according to the present invention can be produced with good workability due to the appropriate working temperature and liquidus temperature of the glass, and are free from alkali elution. It is clear that it has a sufficient effect when used in sunscreen cosmetics, plastic film additives for greenhouse horticulture, etc. because it has a small amount of UV rays and a large ultraviolet absorption effect.
Claims (2)
＿３＋ＺｎＯ）≦２．０ を有し、これらの成分の合計が少なくとも９５重量％で
あるガラス組成物から成ることを特徴とする紫外線吸収
フレーク状ガラス。(1) The following components expressed in weight%: SiO_2 50-65% B_2O_3 3-10% Al_2O_3 3-14% MgO 0-4% CaO 4-20% ZnO 0-10% Li_2O 0-3% Na_2O 1-8 % K_2O 0-4% Fe_2O_3 2-7% CeO_2 1-5% TiO_2 0-3% (Li_2O+Na_2O+K_2O)/(Al_2O
_3+ZnO)≦2.0, and the sum of these components is at least 95% by weight.
必要な０．２規定の硫酸の量で表示して、１ミリリット
ル以下であることを特徴とする特許請求の範囲第１項に
記載の紫外線吸収フレーク状ガラス。(2) The amount of alkali eluted is 1 ml or less expressed as the amount of 0.2N sulfuric acid required to neutralize the eluted alkali, as set forth in claim 1. UV-absorbing flake glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17650789A JPH0340938A (en) | 1989-07-07 | 1989-07-07 | Ultraviolet ray absorbing flaky glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17650789A JPH0340938A (en) | 1989-07-07 | 1989-07-07 | Ultraviolet ray absorbing flaky glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0340938A true JPH0340938A (en) | 1991-02-21 |
Family
ID=16014845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17650789A Pending JPH0340938A (en) | 1989-07-07 | 1989-07-07 | Ultraviolet ray absorbing flaky glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0340938A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0701976A1 (en) * | 1994-09-16 | 1996-03-20 | Guy A. Favrot | Transparent glass |
| KR100894647B1 (en) * | 2001-10-06 | 2009-04-24 | 엘지디스플레이 주식회사 | CLEANING APPARATuS |
| US7641730B2 (en) | 2003-02-27 | 2010-01-05 | Nippon Sheet Glass Company, Limited | Glass flake and method of manufacrturing the same |
| WO2010024283A1 (en) * | 2008-08-27 | 2010-03-04 | 日本板硝子株式会社 | Scale-like glass and coated scale-like glass |
| CN102026929A (en) * | 2008-06-18 | 2011-04-20 | 日本板硝子株式会社 | Scale-like glass and coated scale-like glass |
| JP2013530921A (en) * | 2010-07-07 | 2013-08-01 | グラスフレイク・リミテッド | Glass flakes and methods for producing them |
| JP2014012734A (en) * | 2006-03-24 | 2014-01-23 | Merck Patent Gmbh | Cosmetic composition |
| JP5761677B1 (en) * | 2014-05-20 | 2015-08-12 | 岸工業株式会社 | PVC canvas |
| JP2015214478A (en) * | 2009-03-02 | 2015-12-03 | ワトキンソン，チャールズ | Colored glass flake |
| CN113735438A (en) * | 2021-09-23 | 2021-12-03 | 成都光明光电股份有限公司 | Glass composition |
| CN114835392A (en) * | 2022-03-28 | 2022-08-02 | 醴陵旗滨电子玻璃有限公司 | Ultraviolet-absorbing medium-alumina glass and preparation method and application thereof |
-
1989
- 1989-07-07 JP JP17650789A patent/JPH0340938A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2724647A1 (en) * | 1994-09-16 | 1996-03-22 | Favrot Guy A | TRANSPARENT GLASS |
| EP0701976A1 (en) * | 1994-09-16 | 1996-03-20 | Guy A. Favrot | Transparent glass |
| KR100894647B1 (en) * | 2001-10-06 | 2009-04-24 | 엘지디스플레이 주식회사 | CLEANING APPARATuS |
| US7641730B2 (en) | 2003-02-27 | 2010-01-05 | Nippon Sheet Glass Company, Limited | Glass flake and method of manufacrturing the same |
| JP2014012734A (en) * | 2006-03-24 | 2014-01-23 | Merck Patent Gmbh | Cosmetic composition |
| JP2017025115A (en) * | 2006-03-24 | 2017-02-02 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＭｅｒｃｋ Ｐａｔｅｎｔ Ｇｅｓｅｌｌｓｃｈａｆｔ ｍｉｔ ｂｅｓｃｈｒａｅｎｋｔｅｒ Ｈａｆｔｕｎｇ | Cosmetic composition |
| JP2016179997A (en) * | 2006-03-24 | 2016-10-13 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＭｅｒｃｋ Ｐａｔｅｎｔ Ｇｅｓｅｌｌｓｃｈａｆｔ ｍｉｔ ｂｅｓｃｈｒａｅｎｋｔｅｒ Ｈａｆｔｕｎｇ | Cosmetic composition |
| US9212288B2 (en) | 2008-06-18 | 2015-12-15 | Nippon Sheet Glass Company, Limited | Glass flake and coated glass flake |
| JP5399387B2 (en) * | 2008-06-18 | 2014-01-29 | 日本板硝子株式会社 | Scale glass and coated scale glass |
| EP2287124A4 (en) * | 2008-06-18 | 2012-01-04 | Nippon Sheet Glass Co Ltd | Scale-like glass and coated scale-like glass |
| CN102026929A (en) * | 2008-06-18 | 2011-04-20 | 日本板硝子株式会社 | Scale-like glass and coated scale-like glass |
| US9237994B2 (en) | 2008-08-27 | 2016-01-19 | Nippon Sheet Glass Company, Limited | Glass flake and coated glass flake |
| WO2010024283A1 (en) * | 2008-08-27 | 2010-03-04 | 日本板硝子株式会社 | Scale-like glass and coated scale-like glass |
| JP2015214478A (en) * | 2009-03-02 | 2015-12-03 | ワトキンソン，チャールズ | Colored glass flake |
| EP2403813B1 (en) * | 2009-03-02 | 2018-01-10 | Charles Watkinson | Coloured glass flakes |
| JP2013530921A (en) * | 2010-07-07 | 2013-08-01 | グラスフレイク・リミテッド | Glass flakes and methods for producing them |
| JP5761677B1 (en) * | 2014-05-20 | 2015-08-12 | 岸工業株式会社 | PVC canvas |
| CN113735438A (en) * | 2021-09-23 | 2021-12-03 | 成都光明光电股份有限公司 | Glass composition |
| CN114835392A (en) * | 2022-03-28 | 2022-08-02 | 醴陵旗滨电子玻璃有限公司 | Ultraviolet-absorbing medium-alumina glass and preparation method and application thereof |
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