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公开(公告)号：US4525484A
公开(公告)日：1985-06-25
申请号：US623197
申请日：1984-06-21
申请人： Klaus Hahn , Paul Wittmer , Isidoor De Grave , Rupert Schick , Adolf Echte
发明人： Klaus Hahn , Paul Wittmer , Isidoor De Grave , Rupert Schick , Adolf Echte
CPC分类号： C08J9/20 , C08F12/08 , C08J2325/00
摘要： Particulate polystyrene containing blowing agent and having improved expandability is based on polystyrene having a weight-average mean molecular weight of not more than from 130,000 to 180,000 and a molecular weight distribution curve in which the high molecular weight flank drops steeply. The expandable polystyrene particles are produced by polymerizing styrene in aqueous suspension in the presence of blowing agents and of chain transfer agents or styrene oligomers.
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2.发明授权Particulate polystyrene containing blowing agent and having improved expandability 失效含有发泡剂的颗粒状聚苯乙烯并具有改善的膨胀性
公开(公告)号：US4520135A
公开(公告)日：1985-05-28
申请号：US531658
申请日：1983-09-13
申请人： Klaus Hahn , Paul Wittmer , Isidoor De Grave , Rupert Schick , Adolf Echte
发明人： Klaus Hahn , Paul Wittmer , Isidoor De Grave , Rupert Schick , Adolf Echte
CPC分类号： C08J9/16 , C08F12/08 , C08J2325/06
摘要： Particulate polystyrene containing blowing agent and having improved expandability is based on polystyrene having a weight-average mean molecular weight of not more than from 130,000 to 180,000 and a molecular weight distribution curve in which the high molecular weight flank drops steeply. The expandable polystyrene particles are produced by polymerizing styrene in aqueous suspension in the presence of blowing agents and of chain transfer agents or styrene oligomers.
摘要翻译： 含有聚苯乙烯的发泡剂并具有改善的膨胀性是基于重均分子量不大于130,000至180,000的聚苯乙烯和高分子量侧面急剧下降的分子量分布曲线。 可发性聚苯乙烯颗粒通过在发泡剂和链转移剂或苯乙烯低聚物的存在下在水悬浮液中聚合苯乙烯来制备。
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公开(公告)号：US4513105A
公开(公告)日：1985-04-23
申请号：US623211
申请日：1984-06-21
申请人： Klaus Hahn , Paul Wittmer , Isidoor De Grave , Rupert Schick , Adolf Echte
发明人： Klaus Hahn , Paul Wittmer , Isidoor De Grave , Rupert Schick , Adolf Echte
CPC分类号： C08J9/20 , C08F12/08 , C08J2325/00
摘要： Particulate polystyrene containing blowing agent and having improved expandability is based on polystyrene having a weight-average mean molecular weight of not more than from 130,000 to 180,000 and a molecular weight distribution curve in which the high molecular weight flank drops steeply. The expandable polystyrene particles are produced by polymerizing styrene in aqueous suspension in the presence of blowing agents and of chain transfer agents or styrene oligomers.
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