초록

Fabric base compositions having a refractory coating on one side and a coating containing finely divided dielectric on the other side exhibit superior flame and heat resistance and superior dielectric properties.

대표청구항 ▼

A heat resistant, flexible refractory insulating composition comprising: (a) a base fabric, (b) a refractory coating comprising refractory materials, said refractory coating formed on one side of said fabric and said refractory materials being capable of fusing with the base fabric at elevated tempe

A heat resistant, flexible refractory insulating composition comprising: (a) a base fabric, (b) a refractory coating comprising refractory materials, said refractory coating formed on one side of said fabric and said refractory materials being capable of fusing with the base fabric at elevated temperatures; and (c) a dielectric coating comprising a finely divided dielectric which is mica, zirconium oxide or aluminum oxide, the zirconium oxide and aluminum oxide additionally containing a titanate of bismuth, calcium, magnesium, strontium, lead, zinc-magnesium or mixtures thereof, said dielectric coating formed on the other side of said fabric. A composition according to claim 1 wherein said dielectric coating is formed on said base fabric by plasma spraying. A composition according to claim 2 including the following additional element: (d) a flock coating comprising flock fibers and an adhesive coating, said flock coating formed on said dielectric coating and said adhesive coating securing said flock fibers to said dielectric coating with one end of said fibers upstanding from said adhesive coating.