Preparing expandable styrene polymers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8455559
APP PUB NO 20110224316A1
SERIAL NO

13046154

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Abstract

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The invention provides a process for preparing expandable styrene polymers which comprises the steps of:

    (a) adding an aqueous phase comprising a suspension stabilizer and an organic phase comprising styrene and an initiator to a reactor,(b) commencing the addition of a blowing agent at a styrene conversion in the range from 40 to 70% and adding the blowing agent over a period ranging from 30 to 60 minutes,(c) adding a stabilizer to stabilize the bead size distribution of the expandable styrene polymer at a styrene conversion in the range from 65 to 99%.

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Patent Owner(s)

Patent OwnerAddress
BASF SELUDWIGSHAFEN AM RHEIN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ferstl, Wolfgang Karlsruhe, DE 2 8
Gao, Jun Neustadt, DE 229 941
Hahn, Klaus Kirchheim, DE 221 2041
Hesse, Pascal Mannheim, DE 10 28
Holoch, Jan Leimen, DE 20 128
Hungenberg, Klaus-Dieter Birkenau, DE 19 129
Husemann, Wolfram Neustadt, DE 9 86
Jovanovic, Renata Ludwigshafen, DE 4 16
Kasten, Wolfgang Ludwigshafen, DE 3 14
Kriha, Olaf Neustadt, DE 21 107
Neufeld, Eckhard Limburgerhof, DE 7 25
Pepers, Michel Ludwigshafen, DE 17 103
Reinhard, Birgit Limburgerhof, DE 10 71
Süttinger, Rudolf Heidelberg, DE 1 8
Schmied, Bernhard Frankenthal, DE 37 388
Zhang, Ping Ludwigshafen, DE 445 2139

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