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1. 发明授权

US5453472A Reduction of the wall coating in the suspension polymerization of monomers containing acrylate and/or methacrylate groups 失效
标题翻译：在含有丙烯酸酯和/或甲基丙烯酸酯基团的单体的悬浮聚合中减少壁涂层
公开(公告)号：US5453472A
公开(公告)日：1995-09-26
申请号：US255948
申请日：1994-06-07
申请人： Andreas Deckers , Wolfgang Schatz , Karl-Ludwig Endlich , Guenter Zimmer
发明人： Andreas Deckers , Wolfgang Schatz , Karl-Ludwig Endlich , Guenter Zimmer
IPC分类号： B01F17/52 , C08F2/00 , C08F2/18 , C08F2/20 , C08F20/06
CPC分类号： C08F2/20 , C08F2/005 , C08F20/06 , C08F220/14
摘要： Reduction of the wall coating in reaction containers in the suspension polymerization of monomers containing acrylate and/or methacrylate groups and use of a buffer and of a dispersant for reducing the wall coating in reaction containers in the suspension polymerization of monomers containing acrylate and/or methacrylate groups.
摘要翻译：在含有丙烯酸酯和/或甲基丙烯酸酯基团的单体的悬浮聚合中减少反应容器中的壁涂层，以及在含有丙烯酸酯和/或甲基丙烯酸酯的单体的悬浮聚合中使用缓冲剂和分散剂以减少反应容器中的壁涂层团体

2. 发明授权

US5300601A Suspension polymers based on methyl methacrylate 失效
标题翻译：基于甲基丙烯酸甲酯的悬浮聚合物
公开(公告)号：US5300601A
公开(公告)日：1994-04-05
申请号：US801293
申请日：1991-12-02
申请人： Siegmund Besecke , Wilfried Schoen , Karl-Ludwig Endlich
发明人： Siegmund Besecke , Wilfried Schoen , Karl-Ludwig Endlich
IPC分类号： C08F2/02 , C08F2/18 , C08F4/28 , C08F4/32 , C08F4/38 , C08F20/10 , C08F20/14 , C08F4/36
CPC分类号： C08F20/14
摘要： Suspension polymers ofa) from 80 to 100% by weight of methyl methacrylate andb) from 0 to 20% by weight of further monomers capable of undergoing free radical polymerization,are obtainable by polymerization at a temperature of from 100.degree. to 140.degree. C. which is virtually constant over the major part of the polymerization time by means of an initiator system consisting of two or more peroxide initiators I having different decomposition temperatures T at which in each case half of the initiator has decomposed after 1 hour, whereinthe initiator I.sub.min having the lowest decomposition temperature has a decomposition temperature T.sub.min of from 60.degree. to 100.degree. C.,the initiator I.sub.max having the highest decomposition temperature has a decomposition temperature T.sub.max of from 100.degree. to 140.degree. C., the difference between T.sub.max and T.sub.min is greater than 10.degree. C. and I.sub.max is a perketal of the general formula (1) ##STR1## where R.sup.1 and R.sup.2 are identical or different alkyl radicals of 1 to 5 carbon atoms and R.sup.1 and R.sup.2 may be bonded to form a 5-membered or 6-membered ring and R.sup.3 is tert-butyl or tert-amyl, andfurther initiators I.sub.n which, if desired, may be concomitantly used have decomposition temperatures T.sub.n of from T.sub.min to T.sub.max.
摘要翻译： a）80至100重量％的甲基丙烯酸甲酯和b）0至20重量％的能够进行自由基聚合的其它单体的悬浮聚合物可通过在100-140℃的温度下聚合获得其通过由两种或更多种具有不同分解温度T的过氧化物引发剂组成的引发剂体系在聚合时间的主要部分上几乎恒定，其中在每种情况下，引发剂的一半在1小时后分解，其中引发剂具有最低分解温度的Imin具有60至100℃的分解温度Tmin，具有最高分解温度的引发剂Imax的分解温度Tmax为100-140℃，Tmax和Tmin之间的差大于10摄氏度，而Imax为通式（1）（*化学结构*）（1）的庚缩醛，其中R1和R2相同或不同的1至5个碳原子的烷基，并且R 1和R 2可以键合以形成5元或6元环，并且R 3是叔丁基或叔戊基，以及其它引发剂，其中如果需要，可以是同时使用的分解温度Tn从Tmin到Tmax。

3. 发明授权

US5286801A Emulsion graft copolymers 失效
标题翻译：乳液接枝共聚物
公开(公告)号：US5286801A
公开(公告)日：1994-02-15
申请号：US876780
申请日：1992-04-30
申请人： Siegmund Besecke , Daniel Wagner , Wilfried Schoen , Karl-Ludwig Endlich
发明人： Siegmund Besecke , Daniel Wagner , Wilfried Schoen , Karl-Ludwig Endlich
IPC分类号： C08F2/22 , C08F2/38 , C08F285/00 , C08F265/06
CPC分类号： C08F285/00
摘要： Emulsion graft copolymers composed ofa) 2-10% by weight of a core composed of80-99.99% by weight of methyl methacrylate (I),0.01-5% by weight of allyl methacrylate (II),0-19.99% by weight of other monofunctional comonomers (III) and0-3% by weight of other di- or polyfunctional comonomers (IV),b) 15-50% by weight of a first shell composed of60-89.99% by weight of a C.sub.1 -C.sub.20 -alkyl acrylate (V),10-39.99% by weight of a vinylaromatic monomer (VI),0.01-5% by weight of II,0-10% by weight of I and/or III,0-3% by weight of IV,c) 5-20% by weight of a second shell with a composition as indicated under (a),d) 15-50% by weight of a third shell with a composition as indicated under (b),e) 15-30% by weight of a fourth shell composed of80-99.95% by weight of I,0.05-2% by weight of a regulator (VII) and0-19.95% by weight of III,are suitable as additives to increase the impact strength of thermoplastic compositions.
摘要翻译：由a）2至10重量％的芯组成的乳液接枝共聚物，其包含80至99.99重量％的甲基丙烯酸甲酯（I），0.01至5重量％的甲基丙烯酸烯丙酯（II），0至 19.99重量％的另外的单官能共聚单体（III）和0-3重量％的另外的双官能或多官能共聚单体（Ⅳ），b）15-50重量％的第一壳，其包含60-89.99重量％的丙烯酸C 1 -C 20烷基酯（V），10至39.99重量％的乙烯基芳族单体（VI），0.01至5重量％的II，0至10重量％的I和/或III ，0至3重量％的IV，c）5至20重量％的（a）所示组合物中的第二壳，d）15至50重量％的所述组合物中的第三壳（b），e）15至30重量％的第四壳，其包含80至99.95重量％的I，0.05至2重量％的调节剂（VII）和0至19.95重量％的三。这些乳液接枝共聚物适合作为增加热塑性组合物冲击强度的添加剂。

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