Beall George H. (Big Flats NY) Quinn Candace J. (Corning NY)
출원인 / 주소
Corning Incorporated (Corning NY 02)
인용정보
피인용 횟수 :
17인용 특허 :
3
초록▼
This invention is directed to the preparation of glasses exhibiting a transition temperature below 450°C., a working temperature below 500°C., and excellent resistance to attack by water and mild aqueous alkaline solutions. The glasses consist essentially, in mole percent, of at least 65% total of 2
This invention is directed to the preparation of glasses exhibiting a transition temperature below 450°C., a working temperature below 500°C., and excellent resistance to attack by water and mild aqueous alkaline solutions. The glasses consist essentially, in mole percent, of at least 65% total of 23-55% ZnO, 28-40% P2O5, and 10-35% R2O, wherein R2O consists of at least two alkali metal oxides in the indicated proportions selected from the group consisting of 0-25% Li2O, 0-25% Na2O, and 0-25% K2O, and up to 35% total of optional ingredients in the indicated proportions selected from the group consisting of 0-6% Al2O3, 0-8% B2O3, 0-8% Al2O3+B2O3, 0-15% Cu2O, 0-5% F, 0-35% PbO, 0-35% SnO, 0-35% PbO+SnO, 0-5% ZrO2, 0-4% SiO2, and 0-15% MgO+CaO+SrO+BaO+MnO, consisting of 0-10% MgO, 0-10% CaO, 0-10% SrO, 0-12% BaO, and 0- 10% MnO.
대표청구항▼
A glass exhibiting a transition temperature below 450°C., a working temperature below 500°C., and excellent resistance to attack by water and mild aqueous alkaline solutions, said glass consisting essentially, expressed in terms of mole percent on the oxide basis, of at least 65% total of 23-55% ZnO
A glass exhibiting a transition temperature below 450°C., a working temperature below 500°C., and excellent resistance to attack by water and mild aqueous alkaline solutions, said glass consisting essentially, expressed in terms of mole percent on the oxide basis, of at least 65% total of 23-55% ZnO, 28-40% P2O5, and 10-35% R2O, wherein R2O consists of at least two alkali metal oxides in the indicated proportions selected from the group consisting of 0-25% Li2O, 0-25% Na2O, and 0-25% K2O, and up to 35% total of optional ingredients in the indicated proportions selected from the group consisting of 0-6% Al2O3, 0-8% B2O3, 0-8% Al2O3+B2O3, 0-15% Cu2O, 0-5% F, 0-35% PbO, 0-35% SnO, 0-35% PbO+SnO, 0-5% ZrO2, 0-4% SiO2, and 0-15% MgO+CaO+SrO+BaO+MnO, consisting of 0-10% MgO, 0-10% CaO, 0-10% SrO, 0-12% BaO, and 0-10% MnO.
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이 특허에 인용된 특허 (3)
West, Jr., Bradford D.; Berchtold, Jean, Alumina glass composition and magnetic head incorporating same.
Fujiwara, Yasuhiro; Zou, Xuelu, Precision press-molding preform, process for the production thereof, optical element and process for the production of the optical element.
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