Flux composition for ceramic color, containing no harmful heavy

Details Flux composition for ceramic color, containing no harmful heavy Flux composition for ceramic color, containing no harmful heavy

1980-04-07

1982-02-16

Kight, III, John

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

501 2, 501 57, 501 58, 501 73, 501135, C09D 534, C03C 322

Patent

active

043157785

ABSTRACT:
A flux composition for ceramic color, containing no harmful heavy metal such as lead, cadmium, chromium, etc. is provided.
The flux composition consists mainly of 30 to 45% of SiO.sub.2, 0 to 5% of TiO.sub.2, 4 to 10% of ZrO.sub.2, 13 to 18% of B.sub.2 O.sub.3, 18 to 23% of ZnO, 0 to 3% of CaO, 12 to 15% of the total of two or three kinds of R.sub.2 O selected from Na.sub.2 O, K.sub.2 O and Li.sub.2 O, 4 to 10% of fluorine and 0 to 5% of tin oxide (% being all by weight).
The composition uses no lead which has been indispensable for lower melting glasses, and exhibits superior performances difficult to afford according to conventional lower melting lead-free fluxes.

REFERENCES:
patent: 4160654 (1979-07-01), Bartholomew et al.
patent: 4179300 (1979-12-01), Sagara
patent: 4212919 (1980-07-01), Hoga

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