BEAD POLYMER FOR PRODUCING PMI FOAMS
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United States of America Patent
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Issued Date -
Dec 17, 2015
app pub date -
Jan 15, 2014
filing date -
Feb 15, 2013
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Abstract
The invention relates to a foamable bead polymer consisting of (meth)acrylonitrile, (meth)acrylic acid, copolymerizable latent blowing agents and optionally (meth)acrylic esters, the preparation thereof by suspension polymerization and the use thereof for producing foams. Such a bead polymer makes it possible, for example, to carry out in-mould foaming in a simple way and thus produce products having the shape of the desired workpiece directly. These workpieces are highly suitable as components in space, air, water and land vehicles and for other construction elements.
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