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    • 12. 发明授权
    • Process for multi-step gaseous phase polymerization of olefins
    • 烯烃多步气相聚合方法
    • US4420592A
    • 1983-12-13
    • US309588
    • 1981-10-08
    • Akifumi KatoJunichi YoshidaRyoichi Yamamoto
    • Akifumi KatoJunichi YoshidaRyoichi Yamamoto
    • C08L23/00B01J8/00B01J8/26C08F2/00C08F2/34C08F10/00C08L7/00C08L21/00C08L23/02C08L101/00
    • B01J8/26B01J8/0015B01J8/005C08F10/00B01J2219/1946
    • A process for polymerizing an olefin in the gaseous phase in a multiplicity of steps in at least two independent polymerization zones connected to each other by a transfer passage, which comprises feeding an olefin and a catalyst into a first polymerization zone, polymerizing the olefin in the gaseous phase, intermittently or continuously withdrawing a gaseous stream containing the resulting polymer from the first zone and feeding it into said transfer passage, introducing the withdrawn polymer-containing gaseous stream into a second polymerization zone through the transfer passage, feeding the or an olefin into the second zone with or without feeding an additional supply of the catalyst thereinto, and polymerizing the olefin in the gaseous phase in the second zone; characterized in that an inert gas zone is provided in the transfer passage, and at least a part of the gas components of the gaseous stream containing the polymer is replaced by an inert gas.
    • 一种在气相中的多烯烃在至少两个独立的聚合区中聚合的方法,所述至少两个独立的聚合区通过传输通道彼此连接,所述独立的聚合区包括将烯烃和催化剂进料到第一聚合区中,使烯烃在 气相,间歇地或连续地从第一区间取出含有所得聚合物的气流并将其送入所述传送通道,将经取出的含聚合物的气流通过传送通道引入第二聚合区,将烯烃或 所述第二区域带有或不向所述催化剂供给另外的供应物,并且在所述第二区域中使所述烯烃在所述气相中聚合; 其特征在于,在所述输送通道中设置惰性气体区域,并且含有所述聚合物的气态物流的至少一部分气体成分被惰性气体代替。
    • 15. 发明申请
    • Method and apparatus for producing film
    • 膜的制造方法和装置
    • US20070045896A1
    • 2007-03-01
    • US11513033
    • 2006-08-31
    • Akifumi KatoHidekazu Yamazaki
    • Akifumi KatoHidekazu Yamazaki
    • B29C39/14
    • B29C41/26B29K2001/00
    • A dope is produced from TAC and a mixture solvent whose main compound is dichloromethane. The dope is cast from a casting die onto a casting drum. In an upstream side from the casting die, a decompression chamber having air pipes is provided. The difference from the ordinate pressure to the pressure inside the decompression chamber is −2000 Pa to −10 Pa. An air is fed through the air pipes into the decompression chamber. Thus the pressure fluctuation in the decompression chamber is reduced, and the pressure becomes almost constant in the widthwise direction. Therefore, the entrained air and another air are prevented from entering into the decompression chamber, which makes the shape of the bead of the discharged casting dope stable. When having self-supporting properties, the casting film is peeled as a film from the casting drum and dried to be a TAC film without thickness unevenness.
    • 由TAC和主要化合物为二氯甲烷的混合溶剂制备涂料。 将涂料从铸模铸造到铸造鼓上。 在铸模的上游侧设有具有空气管的减压室。 减压室内的纵坐标压力与压力的差异为-2000Pa〜-10Pa,空气通过空气管进入减压室。 因此,减压室中的压力波动减小,并且压力在宽度方向上变得几乎恒定。 因此,防止了夹带的空气和另一空气进入减压室,这使得排出的浇注涂料的珠的形状稳定。 当具有自支撑性质时,将流延膜从流延鼓中剥离成膜,并干燥成TAC膜而没有厚度不均匀。
    • 17. 发明授权
    • Process for producing ethylene copolymer by gaseous phase
copolymerization
    • 通过气相共聚制备乙烯共聚物的方法
    • US4525547A
    • 1985-06-25
    • US594957
    • 1984-04-02
    • Akifumi KatoJunichi YoshidaRyoichi Yamamoto
    • Akifumi KatoJunichi YoshidaRyoichi Yamamoto
    • C08F2/00C08F2/34C08F210/00C08F210/16
    • C08F210/16Y10S526/901Y10S526/903Y10S526/904
    • A process for producing an ethylene copolymer which comprises polymerizing a predominant amount of ethylene and a minor amount of an alpha-olefin having 4 to 10 carbon atoms in the gaseous phase in the presence of a catalyst composed of (A) a transition metal catalyst component and (B) an organometallic compound of a metal of Groups I to III of the periodic table; characterized in that the copolymerization is carried out under the following conditions (i) and (ii),(i) at least 1 mole, per mole of ethylene, of a gaseous saturated hydrocarbon having 3 to 6 carbon atoms is caused to be present in the gaseous phase copolymerization system, and(ii) the gaseous mixture containing the unreacted olefin which has been discharged from the gaseous phase copolymerization system is cooled to a temperature at which the mixture is not liquefied, and the cooled gaseous mixture is recycled to the gaseous phase copolymerization system.
    • 一种乙烯共聚物的制造方法,其特征在于,在(A)过渡金属催化剂成分(A)过渡金属催化剂的存在下,在气相中聚合主要量的乙烯和少量的具有4〜10个碳原子的α-烯烃 和(B)周期表第I至III族金属的有机金属化合物; 其特征在于,在以下条件(i)和(ii)中进行共聚合,(i)使每摩尔乙烯至少1摩尔具有3至6个碳原子的气态饱和烃存在于 气相共聚系统和(ii)含有从气相共聚系统排出的未反应烯烃的气态混合物被冷却至混合物未液化的温度,将冷却的气体混合物再循环至气态 相共聚系统。
    • 18. 发明申请
    • PRODUCTION METHOD OF POLYMER FILM AND PRODUCTION APPARATUS OF THE SAME
    • 聚合物薄膜的生产方法及其生产设备
    • US20090020922A1
    • 2009-01-22
    • US12281455
    • 2007-02-27
    • Akifumi KatoHidekazu Yamazaki
    • Akifumi KatoHidekazu Yamazaki
    • B29B13/08
    • B29C41/24B29C48/08B29C48/914B29C48/9165
    • A dope is cast onto a casting drum from a casting die while forming a casting bead. Oxygen concentration at the vicinity of the casting bead is set to 0 vol % or more and less than 10 vol %, and a static electricity applying electrode applies static electricity between the casting drum and the casting bead. An intervening film forming device supplies intervening film forming liquid onto the casting drum to form an intervening film. A compression chamber decompresses a downstream area from the casting bead. Thereby, it is possible to form the casting bead having a stable shape, and enhance the extent of adhesion between a casting film and the casting drum. Accordingly, it is possible to enhance the extent of adhesion between the casting drum and the casting bead, prevent occurrence phenomenon of air entrainment, and speed up a film forming speed, thus forming a polymer film.
    • 将铸浆从铸模铸造到铸造鼓上,同时形成铸造珠。 铸造珠附近的氧浓度设定为0体积%以上且小于10体积%,静电施加电极在铸造滚筒和铸造珠之间施加静电。 中间成膜装置将成膜液体提供到流延鼓上以形成中间膜。 压缩室对铸造珠的下游区域进行减压。 因此,可以形成具有稳定形状的铸造珠,并且增强流延膜和流延鼓之间的粘附程度。 因此,可以提高流延鼓和铸造珠之间的粘附程度,防止空气夹带的发生现象,并且加快成膜速度,从而形成聚合物膜。
    • 20. 发明授权
    • Anchor agitator for gaseous phase polymerization vessel
    • 用于气相聚合容器的锚定搅拌器
    • US4366123A
    • 1982-12-28
    • US304081
    • 1981-09-21
    • Akifumi KatoNobuhiko KaneshigeRyoichi Yamamoto
    • Akifumi KatoNobuhiko KaneshigeRyoichi Yamamoto
    • B01F7/00B01F15/00B01J8/38B01J19/18B01F7/18B01J8/10B01J12/02
    • B01F7/00158B01J19/18B01J8/382B01J2219/0011B01J2219/00252B01J2219/185
    • An improved anchor agitator is provided for performing uniform and effective stirring of the fluidized bed zone of a polymerization vessel in a gaseous phase polymerization, especially of olefins such as ethylene and propylene. The anchor agitator includes at least two pairs of arms provided on a rotating shaft in mutually crossing positions. A pair of main blades is provided at opposite outward end portions of one pair of arms and at the opposite outward portions of each remaining pair of arms a pair of subsidiary blades is provided. The main blades and subsidiary blades extend substantially parallel along the axis of the rotating shaft and each pair of blades is located substantially equidistant from the axis of the rotating shaft. The pair of main blades is located farther from the axis of the rotating shaft than the subsidiary blades. The main blades and subsidiary blades are uniquely designed to avoid the formation of coherent crusts or lumps near the inner wall of the polymerization vessel and to avoid formation of a vortex formed centrally in the fluidized bed zone of the vessel in the vertical direction of the zone. The unique angular relationships and distance relationships of the main blades and subsidiary blades also avoid the likelihood of vibration due to mechanical imbalance of the agitator while at the same time allowing the agitator to be easily designed and built.
    • 提供了一种改进的锚式搅拌器,用于在气相聚合中,特别是烯烃如乙烯和丙烯中均匀有效地搅拌聚合容器的流化床区。 锚式搅拌器包括设置在相互交叉位置的旋转轴上的至少两对臂。 一对主叶片设置在一对臂的相对的外端部,并且在每个剩余的一对臂的相对的外侧部分设置有一对辅助叶片。 主叶片和副叶片沿着旋转轴的轴线基本平行地延伸,并且每对叶片基本上等距离旋转轴的轴线定位。 一对主叶片比辅助叶片远离旋转轴的轴线。 主叶片和辅助叶片是独特设计的,以避免在聚合容器的内壁附近形成连贯的结壳或团块,并且避免在该区域的垂直方向上在容器的流化床区域中心形成的涡流形成 。 主叶片和辅助叶片的独特的角度关系和距离关系也避免了由于搅拌器的机械不平衡而引起的振动的可能性,同时允许搅拌器易于设计和建造。