会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Terminal-modifed polyolefins
    • 末端改性的聚烯烃
    • US5382634A
    • 1995-01-17
    • US232304
    • 1994-04-25
    • Naomi KoyamaMiyuki UsuiHiroyuki FuruhashiSatoshi Ueki
    • Naomi KoyamaMiyuki UsuiHiroyuki FuruhashiSatoshi Ueki
    • C08F8/00C08F297/08C08F210/06C08F210/16
    • C08F8/00
    • The object of the present invention is to provide such a polyolefin that only the terminal of polypropylene or ethylene-propylene random copolymer is modified with a (meth)acrylic derivative unit to give a substantially monodipersed system. The feature thereof consists in such a polyolefin that the terminal of polypropylene or ethylene-propylene random copolymer obtained by living polymerization is modified with a (meth)acrylic derivative unit. As the (meth)acrylic derivative, there are used vinyl methacrylate, allyl methacrylate, trimethylsiloxyethyl methacrylate, 2-trimethylsiloxypropyl methacrylate, N, N-dimethylaminoethyl methacrylate, N,N-diethylaminoethyl methacrylate, glycidyl methacrylate, acrylic acid chloride and like.
    • 本发明的目的是提供这样的聚烯烃,只有聚丙烯或乙烯 - 丙烯无规共聚物的末端用(甲基)丙烯酸衍生物单元进行改性,得到基本上单体系统。 其特征在于这样的聚烯烃,其中通过活性聚合获得的聚丙烯或乙烯 - 丙烯无规共聚物的末端用(甲基)丙烯酸衍生物单元改性。 作为(甲基)丙烯酸衍生物,使用甲基丙烯酸乙烯酯,甲基丙烯酸烯丙酯,甲基丙烯酸三甲基甲硅烷氧基乙酯,甲基丙烯酸2-三甲基甲硅烷基丙酯,甲基丙烯酸N,N-二甲基氨基乙酯,甲基丙烯酸N,N-二乙基氨基乙酯,甲基丙烯酸缩水甘油酯,丙烯酰氯等。
    • 4. 发明授权
    • .alpha.-olefin polymerization catalyst component
    • (ALPHA) - 烯烃聚合催化剂组分
    • US5177043A
    • 1993-01-05
    • US663850
    • 1991-03-22
    • Naomi KoyamaHiroyuki FuruhashiMiyuki UsuiTomoko OkanoMasahide MurataSatoshi UekiAkira Nakano
    • Naomi KoyamaHiroyuki FuruhashiMiyuki UsuiTomoko OkanoMasahide MurataSatoshi UekiAkira Nakano
    • C08F4/656C08F4/658C08F10/00
    • C08F10/00Y10S526/904
    • This invention relates to a catalytic component for the polymerization of .alpha.-olefins and provides a catalytic component of magnesium support type capable of exhibiting a high stereoregularity while maintaining an improved strength as well as a high catalytic activity. The features thereof consist in a catalyst component for the polymerization of .alpha.-olefins obtained by contacting (A) a solid component comprising, as essential components, magnesium, titanium, a halogen and an electron-donating compound with (D) an olefin in the presence of (B) a trialkylaluminum and (C) a dimethoxy group-containing compound represented by the general formula R.sup.1 R.sup.2 Si(OCH.sub.3).sub.2 where R.sup.1 and R.sup.2 are, same or different, aliphatic hydrocarbon groups with 1 to 10 carbon atoms and having a volume, calculated by the quantum chemistry calculation, of 230 to 500 .ANG..sup.3 and an electron density of oxygen atoms in the methoxy group, calculated similarly, ranging from 0.685 to 0.800 A. U. (atomic unit) and a catalyst component for the polymerization of .alpha.-olefins obtained by contacting (A) a solid component comprising, as essential components, a metal oxide, magnesium, titanium, a halogen and an electron-donating compound with (D) an olefin in the presence of (B) a trialkylaluminum and (C) a dimethoxy group-containing compound represented by the general formula R.sup.1 R.sup.2 Si(OCH.sub.3).sub.2 where R.sup.1 and R.sup.2 are, same or different, aliphatic hydrocarbon groups with 1 to 10 carbon atoms and having a volume calculated by the quantum chemistry calculation, of 170 to 500 .ANG..sup.3 and an electron density of oxygen atoms in the methoxy group, calculated similarly, ranging from 0.690 to 0.800 A. U. (atomic unit) or the volume in the range of 200 to 500 .ANG..sup.3 and the electron density in the range of 0.685 to 0.800 A. U.