Intumescent sheet material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 5, 1992
Grant Date -
N/A
app pub date -
Aug 6, 1990
filing date -
Jul 11, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Intumescent sheet material having a matrix whose predominant ingredient is an unfired kaolinitic clay comprising ball clay reinforced by inorganic vitreous fibre (for example, mineral wool) contains heat-expandable graphite as intumescent agent and up to 10 percent by weight of an organic binder. It is made by dewatering an aqueous suspension of the aforesaid ingredients in the form of a layer which includes cellulose fibre as web-forming agent.
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Cited Art Landscape
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