| 摘要 |
POROUS POLYVINYLARENE PARTICLES HAVING A APPARENT DENSITY D O OF 600 TO 200 KG/M3,WHICH PARTICLES CONTAIN A NUCLEATING AGENT AND 2.0% BY WEIGHT OR LESS, BASED ON THE AMOUNT OF POLYVINYLARENE, OF A VOLATILE ORGANIC BLOWING AGENT. THE INVENTION ALSO RELATES TO A PROCESS FOR THE PREPARATION OF THESE PARTICLES AS WELL AS TO THE USE OF THESE PARTICLES IN THE PREPARATION OF EXPANDED PARTICLES AND FOAMED ARTICLES.
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