摘要:
To provide glass for an information recording medium substrate, which is excellent in the acid resistance and weather resistance.Glass for an information recording medium substrate, which comprises, as represented by mol % based on the following oxides, from 61 to 72% of SiO2, from 3 to 12% of Al2O3, from 0 to 14.3 of Li2O, from 0 to 22% of Na2O, from 0 to 22% of K2O, from 4 to 13% of MgO, from 0 to 6% of TiO2 and from 0 to 5% of ZrO2, provided that the total content of Li2O, Na2O and K2O (R2O) is from 8 to 22%, the ratio of the content of Li2O to R2O (Li2O/R2O) is at most 0.52, the ratio of the content of Na2O to R2O (Na2O/R2O) is at least 0.35, or the ratio of the content of K2O to R2O (K2O/R2O) is at least 0.45.
摘要翻译:提供耐酸性和耐候性优异的信息记录介质基板用玻璃。 用于信息记录介质基板的玻璃,其以以下氧化物的摩尔%表示,SiO 2为61〜72%,Al 2 O 3为12〜12,Li 2 O 0〜14.3,0〜22重量% 的Na2O,0〜22%的K2O,4〜13%的MgO,0〜6%的TiO2和0〜5%的ZrO2,条件是Li2O,Na2O和K2O(R2O)的总含量为 8〜22%,Li 2 O与R 2 O(Li 2 O / R 2 O)的含量比例为0.52以下,Na2O与R2O的含量比(Na2O / R2O)为0.35以上, 的K2O至R2O(K2O / R2O)为至少0.45。
摘要:
To provide glass to be used for a substrate which is, as a substrate, less susceptible to surface roughening even if subjected to cleaning by means of a strongly acidic solution.Glass for a substrate, which comprises, as represented by mol % based on the following oxides, from 62.5 to 69% of SiO2, from 9 to 15.5% of Al2O3, from 8 to 16 of Li2O, from 0 to 8% of Na2O, from 0 to 7% of K2O and from 0 to 3.5% of ZrO2, provided that SiO2—Al2O3 is at least 53.3%, Li2O+Na2O+K2O is from 17 to 24%, and the total of contents of the above six components is at least 97%.
摘要翻译:为了提供用作基板的玻璃,作为基板,即使经受强酸溶液的清洗也不太容易受到表面粗糙化的影响。 用于底物的玻璃,其以由以下氧化物的摩尔%表示,为62.5至69%的SiO 2,9至15.5%的Al 2 O 3,8至16的Li 2 O,0至8%的Na 2 O, 0〜7%的K 2 O和0〜3.5%的ZrO 2,只要SiO 2 -Al 2 O 3为至少53.3%,Li 2 O + Na 2 O + K 2 O为17〜24%,上述6种成分的总和为 至少97%。
摘要:
To provide a process to improve acid resistance of a glass substrate for an information recording medium.A process for producing a glass substrate for an information recording medium, comprising processing a glass formed into a plate by a float process, a down-draw method or a press method, wherein, in cooling of the glass in the last step where the glass has a temperature of at least its strain point, the time during which the glass temperature is at least its strain point and at most a temperature where the glass viscosity is 1010 dPa·s is at least 13 minutes.
摘要:
A material for organic electroluminescence devices of the invention which is for use in combination with at least one phosphorescent metal complex has a specific heterocyclic structure. The material for organic electroluminescence devices is used as a host material or a hole transporting material. An organic electroluminescence device having an anode, a cathode and an organic thin film layer having one or more layers which is interposed between the anode and cathode, in which at least one layer of the organic thin film layer contains the material for organic electroluminescence devices, has a high emitting efficiency, causes little pixel defects, is excellent in heat resistance, and shows a long lifetime.
摘要:
An organic electroluminescence device includes: an anode; a cathode opposed to the anode; and a plurality of emitting units including at least a first emitting unit and a second emitting unit. The plurality of emitting units each includes: an emitting layer; and an intermediate unit between the first emitting unit and the second emitting unit. The intermediate unit includes an electron injecting layer, a zinc oxide layer and a hole injecting layer in this sequence from the anode. The electron injecting layer contains an electron donating material and is adjacent to the first emitting unit. The hole injecting layer contains an organic electron accepting material and is adjacent to the second emitting unit.