Fluorine-containing lead- and cadmium-free glazes

Details Fluorine-containing lead- and cadmium-free glazes Fluorine-containing lead- and cadmium-free glazes

1994-03-07

1995-01-31

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 26, C03C 606

Patent

active

053858719

ABSTRACT:
This invention is directed to a glass frit composition essentially free from lead and cadmium exhibiting a linear coefficient of thermal expansion (25.degree. C.-300.degree. C.) between about 75-85.times.10.sup.-7 /.degree.C., good flow at temperatures between about 950.degree.-1000.degree. C., a softening point between about 650.degree.-725.degree. C., and excellent resistance to attack by alkaline detergent and hydrochloric acid, said frit consisting essentially, expressed in terms of weight percent on the oxide basis (except for the fluorine content), of

REFERENCES:
patent: 4224074 (1980-09-01), Reade
patent: 4342553 (1982-08-01), Graff et al.
patent: 4493900 (1985-01-01), Nishino et al.
patent: 4590171 (1986-05-01), Nigrin
patent: 4608348 (1986-08-01), Beall et al.
patent: 5204291 (1993-04-01), Nigrin

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