Process for preparation of polymer particles

PCT No. PCT/EP97/03607 Sec. 371 Date Dec. 30, 1998 Sec. 102(e) Date Dec. 30, 1998 PCT Filed Jul. 3, 1997 PCT Pub. No. WO98/01501 PCT Pub. Date Jan. 15, 1998The present invention provides a process for preparing an expandable polymer of a vinyl aromatic monomer and a polar water adsorbing monomer. Th...

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Bibliographische Detailangaben
Hauptverfasser:	H.A.A. BERGHMANS, I. CHORVATH, P. KELEMEN
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON ENZYMOLOGY GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING ORGANIC MACROMOLECULAR COMPOUNDS SPIRITS THEIR PREPARATION OR CHEMICAL WORKING-UP VINEGAR WINE WORKING-UP
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Beschreibung
Zusammenfassung:	PCT No. PCT/EP97/03607 Sec. 371 Date Dec. 30, 1998 Sec. 102(e) Date Dec. 30, 1998 PCT Filed Jul. 3, 1997 PCT Pub. No. WO98/01501 PCT Pub. Date Jan. 15, 1998The present invention provides a process for preparing an expandable polymer of a vinyl aromatic monomer and a polar water adsorbing monomer. The monomers are partially polymerized and then suspended in water so that the resulting beads contain from 3 to 40 weight % water which act as the sole or a predominant blowing agent.