Thermoplastic polymeric foam pipe insulation
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United States of America Patent
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Dec 19, 2017
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app pub date -
Feb 17, 2014
filing date -
Feb 26, 2013
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Abstract
An article with at least two extruded thermoplastic polymer foam pieces that fit together to form a length of foam having a generally annular cross section, each piece having a concave surface such that the concave surfaces adjoin to form an internal edge defining a hole within the generally annular cross section; wherein each piece has a density less than 36 kilograms per cubic meter, a product of density times average cell size that is less than 17 millimeters*kilogram per cubic meter, and a thermal conductivity of 35 milliwatts per meter*Kelvin or less.
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