Mold for the casting of glass ceramic

Details Mold for the casting of glass ceramic Mold for the casting of glass ceramic

1990-01-29

1991-05-07

Group, Karl

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 389, 501111, 501133, 433 48, B28B 734

Patent

active

050133632

ABSTRACT:
The phosphate mold material of this invention comprises refractory materials and binders as principal components, the refractory materials containing cristobalite and quartz, and the binders containing metal oxides which includes magnesia clinker and a phosphate salt. The proportion of said refractory materials to said binders is 80:20-90:10, and the proportion of cristobalite to quartz is in the range 6:1-7:1.

REFERENCES:
patent: 2466138 (1949-04-01), Wainer
patent: 2675322 (1954-04-01), Watts
patent: 4262055 (1981-04-01), Russell et al.
patent: 4417925 (1983-11-01), Cherry
patent: 4591385 (1986-05-01), Pearsall
patent: 4709741 (1987-12-01), Nakamura
patent: 4830083 (1989-05-01), Nakamura

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