Artificial stone molded body and process for fabrication thereof
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United States of America Patent
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Oct 30, 1990
Grant Date -
N/A
app pub date -
Aug 4, 1989
filing date -
Aug 15, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a process for fabricating an artificial stone molded body by mixing an inorganic filler such as alumina with a resin binder and polymerizing and curing the mixture. A high-viscosity syrup formed by preliminarily polymerizing a polyol polyallyl carbonate with an ethylenically saturated monomer is used as the resin binder and is mixed with the inorganic filler. According to this process, the polymerization is completed in a short time and the internal stress in the molded body is moderated. The molded body fabricated according to this process is excellent in Barcol hardness, pencil hardness, taper abrasion, Sharpy impact strength, flexural strength, heat resistance and chemical resistance.
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