Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1988-07-06
1989-11-28
Robinson, Ellis P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428426, 428428, 428432, 428901, 501 32, B32B 900
Patent
active
048837059
ABSTRACT:
A composition for a ceramic substrate comprising from 30 to 70% by weight of glass powder, from 28 to 70% by weight of refractory filler powder and an oxidizing agent, said glass powder consisting essentially of from 38 to 48% by weight of SiO.sub.2, from 1 to 8% by weight of Al.sub.2 O.sub.3, from 0 to 10% by weight of MgO, from 18 to 28% by weight of BaO, from 1 to 8% by weight of CaO, from 0 to 15% by weight of SrO, from 0.5 to 15% by weight of B.sub.2 O.sub.3, from 0 to 20% by weight of PbO, from 10 to 20% by weight of ZnO, from 0 to 7% by weight of TiO.sub.2 plus ZrO.sub.2 and from 0 to 5% by weight of Li.sub.2 O plus Na.sub.2 O plus K.sub.2 O, and said refractory filler powder comprising from 20 to 60% by weight of alumina, from 0 to 40% by weight of zircon, from 0 to 30% by weight of cordierite and from 0 to 30% by weight of forsterite.
REFERENCES:
patent: 2898395 (1959-08-01), Schurecht
patent: 4133690 (1979-01-01), Muller
patent: 4593006 (1986-06-01), Takabetake et al.
patent: 4618590 (1986-10-01), Baudry
patent: 4743302 (1988-05-01), Dumesnil et al.
patent: 4777092 (1988-10-01), Kawakami et al.
Chiba Jiro
Kawakami Keiichi
Takabatake Mitsuo
Asahi Glass Company Ltd.
Robinson Ellis P.
Ryan P. J.
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