Thermoformable acrylic sheet having uniform distribution of color and mineral filler
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United States of America Patent
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Jan 6, 1998
Grant Date -
N/A
app pub date -
Sep 25, 1996
filing date -
Nov 26, 1993
priority date (Note) -
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Abstract
A composition suitable for making thermoformable sheets and the like. The composition comprises a crosslinked poly (methyl methacrylate) typically having uncrosslinked poly (methyl methacrylate) dispersed therein. The composition a comprises 0.5 to about 1.0 pph of at least one crosslinking agent x, and up to about 0.58x-0.28 pph of a at least one chain terminator. The composition also comprises about 0.1 to 8 pph poly (methyl methacrylate) compatible plasticizer, and has about 20 to 60 wt % solid particle dispersed therein.
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