Process for the preparation of polymer particles

United States of America Patent

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Oct 3, 2000
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N/A
app pub date
Dec 30, 1998
filing date
Jul 4, 1996

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Expired

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Abstract

The 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.

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Patent Owner(s)

Patent Owner	Address
NOVA CHEMICALS (INTERNATIONAL) S A	SWISS FRY BERG FREIBURG FRIBOURG

International Classification(s)

C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....

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Inventor Name	Address	# of filed Patents	Total Citations
Berghmans, Hugo Angela Albert	Heverlee-Leuven, BE	1	43
Chorvath, Igor	Eindhoven, NL	37	397
Kelemen, Peter	Heverlee-Leuven, BE	4	47
Neijman, Eric Wilhelmus Johannes Frederik	Breda, NL	4	138
Zijderveld, Johannes Maria	Breda, NL	4	137

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Process for the preparation of polymer particles

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09214259

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PATENT NO	6127439
SERIAL NO	09214259
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09214259

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