-
公开(公告)号：US3989532A
公开(公告)日：1976-11-02
申请号：US439598
申请日：1974-02-04
摘要： An optical article, for example, a lens, window or mirror, at least part of the surface of which, and preferably the whole of which, is an inorganic oxide glass having a P.sub.2 O.sub.5 content of at least 52 mole %, and preferably 55 to 68.5 mole %, an alkaline earth content of 2.7 to 20 mole %, and a transformation temperature of not greater than 300.degree. C, the glass optionally containing B.sub.2 O.sub.3 and at least one alkali metal oxide.
摘要翻译： 光学制品，例如透镜，窗或镜，其表面的至少一部分，优选全部是具有至少52摩尔％的P2O5含量的无机氧化物玻璃，优选为55至 68.5摩尔％，碱土含量为2.7〜20摩尔％，转化温度为300℃以下，玻璃任选含有B 2 O 3和至少1种碱金属氧化物。
-
公开(公告)号：US3964919A
公开(公告)日：1976-06-22
申请号：US599999
申请日：1975-07-29
CPC分类号： C03C3/21
摘要： Phosphate glasses containing minor amounts of the oxides of chromium, molybdenum and tungsten (Group VIb) have improved water resistance and low softening points. Suitable compositions are within the range (moles percent)P.sub.2 o.sub.5 50-75Group VIb oxides 0.1-10, comprising singly or in combination CrO.sub.3 up to 2.6, MoO.sub.3 up to 7, WO.sub.3 up to 7At least one oxide selected from alkali metal oxides and alkaline earths 15- 49.9Addition of oxidizing agents (e.g. sodium nitrate) to the melt may be used to keep the Group VIb metals in the hexavalent state.
摘要翻译： 含有少量铬，钼和钨的氧化物的磷酸盐玻璃（组VIb）具有改善的耐水性和低软化点。 合适的组成范围（摩尔百分比）P2O5 50-75组VIb氧化物0.1-10，包含单独或组合的CrO 3至多2.6，MoO 3至多7，WO 3至多7。至少一种选自碱金属氧化物和 碱土15-49。
-
公开(公告)号：US4046540A
公开(公告)日：1977-09-06
申请号：US586918
申请日：1975-06-16
申请人： Cyril John Lewis , Neil Carter , Neil Hunter Ray
发明人： Cyril John Lewis , Neil Carter , Neil Hunter Ray
CPC分类号： C03B19/025 , B29C45/00 , C03C10/0054 , C03C3/16 , C03C3/19
摘要： The production of shaped glass articles is undertaken by an injection moulding process by charging a particulate inorganic glass having a transformation temperature of not greater than 300.degree. C to an injection moulding machine; by converting the glass to a molten state in the barrel of the machine; and by injecting the molten glass into a mould on the machine.
-
公开(公告)号：US4026714A
公开(公告)日：1977-05-31
申请号：US718629
申请日：1976-08-30
申请人： Cyril John Lewis
发明人： Cyril John Lewis
摘要： A glass having a good combination of anti-misting properties and durability to water is produced from an inorganic glass composition comprising:A. P.sub.2 O.sub.5 -- 52 to 72 mole %B. one or more oxides selected from B.sub.2 O.sub.3, SiO.sub.2 and Al.sub.2 O.sub.3 -- in total more than 3.5 mole % and not more than 12 mole %.C. PbO -- 1 to 12 mole% andD. alkali metal oxides, alkaline earth metal oxides or zinc oxide -- in total 4 to 30 mole %.
摘要翻译： 由无机玻璃组合物制备具有良好防雾性能和耐水性的组合的玻璃，其包含：
-
-
-
搜索结果
4 条记录 (耗时 0.035 秒)
