Fiber reinforced spray mix
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United States of America Patent
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Jun 23, 1998
Grant Date -
N/A
app pub date -
Aug 6, 1996
filing date -
Aug 16, 1995
priority date (Note) -
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Abstract
A pulverulent fiber-reinforced spray mix is disclosed in which about 0.02 to 0.3 wt. % of flexible, thermoset polymer fibers resistant to decomposition at a temperature up to about 400.degree. F. are added for each 100 wt. % of other solids in the mix to form a mix which both avoids formation of mat-like structures in the dry hopper of refractory spray apparatus and provides a sprayed lining that is resistant to cracking and peeling during dry-out and preheat. The invention also comprises sprayable compositions formed by admixing water with the mix.
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