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公开(公告)号：US5292837A
公开(公告)日：1994-03-08
申请号：US925983
申请日：1992-08-05
CPC分类号： C08F10/02
摘要： For the homopolymerization of ethylene or for the copolymerization of ethylene with other 1-olefins, a catalyst is used which comprises a trialkylaluminum compound and the entire product from the reaction of a magnesium alkoxide which is dissolved, suspended or dispersed as a gel in an inert solvent, with a tetravalent transition-metal compound and an organoaluminum compound, washing with an inert solvent and reacting with a halogenated metal compound. A polymer having coarse particles and a high bulk density is obtained.
摘要翻译： 对于乙烯的均聚或乙烯与其它1-烯烃的共聚反应，使用的催化剂包括三烷基铝化合物和来自烷醇溶解，悬浮或分散为惰性的烷氧基镁的反应的整个产物 溶剂，四价过渡金属化合物和有机铝化合物，用惰性溶剂洗涤并与卤化金属化合物反应。 得到具有粗颗粒且堆积密度高的聚合物。
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2.发明授权Organosiloxanes useful in molding compositions based on unsaturated polyesters and unsaturated monomers 失效有机硅氧烷可用于基于不饱和聚酯和不饱和单体的模塑组合物
公开(公告)号：US4120837A
公开(公告)日：1978-10-17
申请号：US794996
申请日：1977-05-09
摘要： Molding compositions, based on unsaturated polyester resins, unsaturated monomers, catalysts, inorganic and/or organic fillers and/or reinforcing agents, dyestuffs and/or pigments, lubricants and optionally inhibitors, containing a siloxane of the formula ##STR1## wherein A IS 0 OR 1b is a number from 1 to 500, provided that when a is 0, b must be equal to or greater than 3 and the compound is a cyclosiloxane,R.sup.1 is hydrogen, alkyl or trimethylsilyl,R.sup.2 is alkyl of 8 to 32 carbon atoms, --R.sup.4 OCOR.sup.5, or --R.sup.4 OR.sup.6, where R.sup.4 is a bivalent radical, R.sup.5 is alkyl of 12 to 22 carbon atoms and R.sup.6 is alkyl of 8 to 22 carbon atoms, provided that up to 80 mole % of the above-mentioned radicals defining R.sup.2 may be methyl and provided further that at least one R.sup.2 per molecule is other than methyl, andR.sup.3 is methyl or alkoxy of 1 to 4 carbon atoms, and/or a carboxysiloxane as an eternal and/or internal lubricant, optionally together with an additional external and/or internal lubricant.
摘要翻译： 含有下式的硅氧烷（I）的基于不饱和聚酯树脂，不饱和单体，催化剂，无机和/或有机填料和/或增强剂，染料和/或颜料，润滑剂和任选的抑制剂的成型组合物，其中 A 0或1 B为1至500的数字，当A为0时，B必须等于或大于3，化合物为环硅氧烷，R1为氢，烷基或三甲基甲硅烷基，R2为烷基8 至32个碳原子，-R4OCOR5或-R4OR6，其中R4是二价基团，R5是12-22个碳原子的烷基，R6是8-22个碳原子的烷基，条件是高达80％ 上述定义R 2的基团可以是甲基，并进一步提供每个分子至少一个R 2不是甲基，R 3是甲基或1至4个碳原子的烷氧基，和/或作为永久和/或内部润滑剂的羧基硅氧烷，任选地 以及额外的外部和/或内部润滑剂。
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