Moldable glass compositions

Details Moldable glass compositions Moldable glass compositions

1981-03-26

1982-04-06

Vertiz, O. R.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C03C 314, C03C 316

Patent

active

043236545

ABSTRACT:
Alkali-Ta.sub.2 O.sub.5 -B.sub.2 O.sub.3 -P.sub.2 O.sub.5 glass compositions suitable for providing molded optical elements or the like, exhibiting glass transition temperatures below 500.degree. C., refractive index values (n.sub.d) above 1.523, and acceptable water durability are disclosed.

REFERENCES:
patent: 2291958 (1942-08-01), Garrison
patent: 2390191 (1945-12-01), Stanworth
patent: 3926649 (1975-12-01), Ray et al.
patent: 3989532 (1976-11-01), Ray et al.
patent: 4108673 (1978-08-01), Toratani et al.
patent: 4115131 (1978-09-01), Ishibashi
patent: 4165989 (1979-08-01), Asahara
patent: 4206016 (1980-06-01), Booth
patent: 4285730 (1981-08-01), Sanford et al.

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