Method for producing microporous plastic products and the plastic products obtainable according to this method, as well as a plastic source material
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United States of America Patent
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app pub date -
Jul 27, 2006
filing date -
Jan 27, 2004
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Abandoned
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Abstract
The invention relates to a method for producing a microporous plastic product using a plastic source material, a physical and/or chemical propellant and further using especially exfoliated nanoparticles. The plastic source material is treated with the propellant in a preceding process steps in the presence of nanoparticles, thereby producing microporous foamed molded plastic articles having a large number of pores and an even pore distribution. The inventive plastic molded articles are not subject to shrinkage or warpage and have an optically appealing, smooth surface as well as advantageous shock and sound absorption properties. The invention also relates to plastic source materials that contain nanoparticles and propellants.
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