Lead-free frit glaze

Details Lead-free frit glaze Lead-free frit glaze

1993-02-03

1994-11-08

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 66, C03C 802, C03C 3091

Patent

active

053626877

ABSTRACT:
A lead-free frit glaze consisting of, by mole %, 61% or greater SiO.sub.2, 8-10% Al.sub.2 O.sub.3, 0.1-3% CaO, 0.1-2% MgO, 2-5% Li.sub.2 O, 1-4% K.sub.2 O, 2-6% Na.sub.2 O, and 10-15% B.sub.2 O.sub.3. The glaze is applied over the surface of ceramic biscuit base and fired therewith. Although the glaze contains no lead, the lead-free frit glaze provides excellent gloss and excellent quick cooling resistance.

REFERENCES:
patent: 2972543 (1961-02-01), Beals et al.
patent: 4084976 (1978-04-01), Hinton
patent: 4120733 (1978-10-01), Knapp
patent: 4282035 (1981-08-01), Nigrin
patent: 4316963 (1982-02-01), Hommel
patent: 4814298 (1989-03-01), Nelson et al.
patent: 5204291 (1993-04-01), Nigrin
patent: 5219801 (1993-06-01), Shorrock et al.
patent: 5264398 (1993-11-01), Thometzek et al.

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