Glass compositions

Details Glass compositions Glass compositions

1995-01-30

1997-02-25

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 17, 501 21, 501 66, 501 67, 428426, C03C 100

Patent

active

056058691

ABSTRACT:
An on-glaze low expansion glass flux composition suitable for coating onto a glazed surface which is essentially free from lead and cadmium and comprises, in mole percent, SiO.sub.2 : 35 to 75%, Bi.sub.2 O.sub.3 : 4 to 12%, Al.sub.2 O.sub.3 : 2 to 12%, B.sub.2 O.sub.3 : 18 to 35%, at least one of Li.sub.2 O, Na.sub.2 O, K.sub.2 O : 0 to 12% (in total), and certain other optional ingredients with the provisos that BaO is not contained in an amount of more than 2 mole percent, the total amount of Bi.sub.2 O.sub.3 +B.sub.2 O.sub.3 +Li.sub.2 O,Na.sub.2 O and K.sub.2 O is in the range of from 25 to 45 mole percent, the total amount of Li.sub.2 O, Na.sub.2 O and K.sub.2 O is in the range of up to 10 percent by weight except when the only alkali metal oxide present is Li.sub.2 O, and the composition has a coefficient of thermal expansion in the range of from 4.0 to 7.0.times.10.sup.-6 /.degree.C. These glass flux compositions are of particular use in the preparation of enamel compositions for the decoration of low-expansion porcelain ware.

REFERENCES:
patent: 4282035 (1981-08-01), Nigrin
patent: 4446241 (1984-05-01), Francel et al.
patent: 4554258 (1985-11-01), Francel
patent: 4590171 (1986-05-01), Nigrin
patent: 4892847 (1990-01-01), Reinherz
patent: 4970178 (1990-11-01), Klimas et al.
patent: 5200369 (1993-04-01), Clifford et al.
patent: 5244848 (1993-09-01), Clifford et al.
patent: 5308803 (1994-05-01), Clifford et al.
Chemical Abstracts, vol. 110, No. 6, 20 Mar. 1989.

Affiliated with

Also associated with

Rating

Glass compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Glass compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Glass compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1973967