Inventors:
Bruce G. Aitken - Erwin NY
George H. Beall - Big Flats NY
Candace J. Quinn - Corning NY
Assignee:
Corning Incorporated - Corning NY
International Classification:
C03C 1300
Abstract:
This invention relates to a fiberizable glass compositions consisting essentially, expressed in terms of mole percent on the oxide basis, of at least 65% total of 5-55% ZnO, 28-40% P. sub. 2 O. sub. 5, 0. 3-5% MoO. sub. 3 and 10-35% R. sub. 2 O, wherein R. sub. 2 O consists of at least two alkali metal oxides in the indicated proportions selected from the group consisting of 0-25% Li. sub. 2 O, 0-25% Na. sub. 2 O, and 0-25% K. sub. 2 O, and up to 35% total of optional ingredients in the indicated proportions selected from the group consisting of 0-10% Al. sub. 2 O. sub. 3, 0-15% B. sub. 2 O. sub. 3, 0-15% Al. sub. 2 O. sub. 3 +B. sub. 2 O. sub. 3, 0-15% Cu. sub. 2 O, 0-25% Sb. sub. 2 O. sub. 3 0-5% F, 0-35% PbO, 0-35% SnO, 0-35% PbO+SnO, 0-5% ZrO. sub. 2, 0-4% SiO. sub.