Vitroceramic materials and process of making the same

Details Vitroceramic materials and process of making the same Vitroceramic materials and process of making the same

1976-07-28

1977-08-23

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 52, C03C 322

Patent

active

040438210

ABSTRACT:
A vitroceramic product which is economical to produce and has excellent resistance to bending and abrasion comprising at least 90% by weight of said product of the following ingredients expressed in percent by weight thereof;
SiO.sub.2 + Al.sub.2 O.sub.3 + B.sub.2 O.sub.3 in from 40 to 50%, iron oxide in from 16 to 30%, and CaO + MgO in from 24 to 40%; the sum of the Al.sub.2 O.sub.3 + B.sub.2 O.sub.3 being from 2 to 15 percent and the product including at least 0.5% by weight of nucleus forming agent.

REFERENCES:
patent: 3193503 (1965-07-01), Smith
patent: 3268315 (1966-08-01), Stookey
patent: 3557575 (1971-01-01), Beall
patent: 3694360 (1972-09-01), Weaver
patent: 3901716 (1975-08-01), Rogers et al.
patent: 3928047 (1975-12-01), Kapolyi et al.
patent: 3955989 (1976-05-01), Nakamura

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