Low melting, durable phosphate glasses

Details Low melting, durable phosphate glasses Low melting, durable phosphate glasses

1992-04-24

1993-10-26

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 47, 501 48, C03C 317

Patent

active

052566048

ABSTRACT:
This invention is directed to the production of glasses exhibiting an annealing point between 290.degree.-325.degree. C., an index of refraction between 1.57-1.66, a linear coefficient of thermal expansion (25.degree.-300.degree. C.) between 130-160.times.10.sup.-7 /.degree.C., and a weight loss after exposure to boiling water for six hours no greater than 0.1% consisting essentially, expressed in terms of mole percent on the oxide basis, of

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patent: 5022921 (1991-06-01), Aitken
patent: 5043369 (1991-08-01), Bahn et al.
patent: 5071795 (1991-12-01), Beall et al.
patent: 5122484 (1992-06-01), Beall et al.
patent: 5153151 (1992-10-01), Aitken

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