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    • 1. 发明申请
    • Production process for vinyl chloride polymer
    • 氯乙烯聚合物的生产工艺
    • US20050027088A1
    • 2005-02-03
    • US10834978
    • 2004-04-30
    • Yoshinori NakaharaMasatsugu TakanoYasuhiro TakahashiTadashi Amano
    • Yoshinori NakaharaMasatsugu TakanoYasuhiro TakahashiTadashi Amano
    • C08F2/00C08F14/06
    • C08F14/06C08F2/16
    • A production process for a vinyl chloride polymer is proposed in which either vinyl chloride, or a monomer mixture comprising vinyl chloride, is polymerized in an aqueous medium inside a polymerization vessel, while heat removal is conducted using a reflux condenser. In this process, the liquid level of the contents inside the polymerization vessel is monitored using an electric wave liquid level gauge, which is disposed on the polymerization vessel and radiates microwaves with a frequency of 4 to 20 GHz. The operating efficiency of the reflux condenser can be improved, and the quantity of heat removed by the reflux condenser can be increased. Furthermore, the time required to complete the process, including the raw material addition step and/or the washing step conducted following completion of the polymerization, can be shortened.
    • 提出了氯乙烯聚合物的制备方法,其中氯乙烯或包含氯乙烯的单体混合物在聚合容器内部的水性介质中聚合,同时使用回流冷凝器进行除热。 在该过程中,使用设置在聚合容器上的电波液位计并辐射频率为4至20GHz的微波来监测聚合容器内部的内容物的液面。 可以提高回流冷凝器的运行效率,并且可以提高由回流冷凝器除去的热量。 此外,可以缩短完成该方法所需的时间,包括在聚合完成后进行的原料添加步骤和/或洗涤步骤。
    • 4. 发明授权
    • Process for producing vinyl chloride polymer with low residual monomer
    • 生产具有低残留单体的氯乙烯聚合物的方法
    • US06448372B2
    • 2002-09-10
    • US09764093
    • 2001-01-19
    • Takashi KobayashiRyuichi SaitoYoshinori NakaharaTadashi AmanoIchiro Hara
    • Takashi KobayashiRyuichi SaitoYoshinori NakaharaTadashi AmanoIchiro Hara
    • C08F624
    • C08F6/003C08F14/06C08L27/06C08F2/18
    • A process for producing a vinyl chloride polymer, including the steps of (a) subjecting a vinyl chloride monomer alone or a monomer mixture containing a vinyl chloride, to suspension polymerization in water; (b) subjecting the resultant vinyl chloride polymer slurry to stripping to remove an unreacted monomer remaining therein; and (c) dehydrating the polymer slurry having been subjected to stripping. In the polymerization step (a), the ratio of water/monomer is set in a weight ratio of from 0.80 to 1.50, and the viscosity at 20° C. of the polymer slurry to be fed to the stripping step is previously kept adjusted to 0.30 Pa·s or lower. In the stripping step (c), the residual unreacted monomer in the polymer slurry can efficiently be removed using steam in a smaller quantity, thus the vinyl chloride polymer can be produced at a high productivity.
    • 一种制备氯乙烯聚合物的方法,包括以下步骤:(a)使单独的氯乙烯单体或含有氯乙烯的单体混合物在水中悬浮聚合; (b)将得到的氯乙烯聚合物浆料进行汽提以除去其中残留的未反应单体; 和(c)使经过剥离的聚合物浆料脱水。 在聚合步骤(a)中,将水/单体的比例设定为0.80至1.50的重量比,并将预先进料到汽提步骤的聚合物浆料的20℃下的粘度预先保持在 0.30 Pa.s以下。 在汽提步骤(c)中,聚合物淤浆中残留的未反应单体可以用较少量的蒸汽有效地除去,从而可以高生产率生产氯乙烯聚合物。
    • 6. 发明授权
    • Apparatus for continuous polymerization
    • 连续聚合装置
    • US5282680A
    • 1994-02-01
    • US63604
    • 1993-05-19
    • Tadashi AmanoShuji OhnishiMinoru ShigemitsuYasuhiro TakahashiHajime Kitamura
    • Tadashi AmanoShuji OhnishiMinoru ShigemitsuYasuhiro TakahashiHajime Kitamura
    • B01F5/16B01J19/24B01F15/02
    • B01F5/16B01J19/2415B01J19/243B01J2219/00094B01J2219/00162B01J2219/00164B01J2219/00182
    • An apparatus for continuous polymerization of vinyl chloride or a vinyl chloride-based monomeric mixture, comprising a pre-mixer 1 for preparing an aqueous suspension of the vinyl chloride or vinyl chloride-based monomeric mixture, and a polymer slurry tank 5 connected to the pre-mixer 1 through a polymerization passage comprising a piping 3, wherein a pump comprising a conical hub and an impeller mounted thereon comprised of a single spiral blade is used for drawing out the aqueous suspension from the pre-mixer into the polymerization passage and for discharging a polymer slurry formed in the passage into the slurry tank, and the polymerization passage has a length sufficient for permitting the vinyl chloride or vinyl chloride-based monomeric mixture contained in the aqueous suspension flowing through the passage to be polymerized to a predetermined extent while passing through the passage. The use of the pump having the structure as above ensures a marked suppression of polymer scale deposition in the pump, heat exchanger and pipings, and makes it possible to produce a resin with few fish-eyes. The apparatus is of extremely high industrial value for carrying out continuous polymerization.
    • 一种用于氯乙烯或氯乙烯基单体混合物的连续聚合的装置,包括用于制备氯乙烯或氯乙烯基单体混合物的水悬浮液的预混合器1和连接到前述聚合物浆料罐5的聚合物浆料罐5。 混合器1通过包括管道3的聚合通道,其中包括圆锥形轮毂和安装在其上的叶轮由包括单个螺旋叶片的泵用于将预混合器中的水悬浮液抽出到聚合通道中并用于排出 聚合物淤浆形成在通入浆料罐的通道中,并且聚合通道的长度足以允许流过通道的含水悬浮液中所含的氯乙烯或氯乙烯类单体混合物在通过时聚合至预定程度 通过通道。 具有上述结构的泵的使用确保了泵,热交换器和管道中的聚合物垢沉积的显着抑制,并且使得可以生产几乎没有鱼眼的树脂。 该设备具有非常高的工业价值用于进行连续聚合。
    • 9. 发明申请
    • VINYL CHLORIDE-BASED RESIN COMPOSITION, METHOD OF PRODUCING VINYL CHLORIDE-BASED POLYMER COMPOSITION, AND VINYL CHLORIDE-BASED POLYMER COMPOSITION OBTAINED THEREBY
    • 基于氯乙烯的树脂组合物,基于氯乙烯的聚合物组合物的制备方法和基于氯乙烯的聚合物组合物
    • US20110294941A1
    • 2011-12-01
    • US13115369
    • 2011-05-25
    • Tatsuya FUJIMOTOTadashi AmanoManabu FurudateTomohiro InoueShinji FujimotoKen Yahata
    • Tatsuya FUJIMOTOTadashi AmanoManabu FurudateTomohiro InoueShinji FujimotoKen Yahata
    • C08K3/22B82Y30/00
    • B82Y30/00
    • Provided is a vinyl chloride-based resin composition including a vinyl chloride-based resin and a titanium dioxide having an average particle diameter of 5 to 50 nm, in an amount of 1,000 ppm to 10,000 ppm, by mass, relative to the mass of the vinyl chloride-based resin. By adding a titanium dioxide having an average particle diameter of 5 to 50 nm to a vinyl chloride-based resin in an amount described above, a vinyl chloride-based resin composition of excellent thermal stability can be obtained. In the vinyl chloride-based resin composition, the crystalline form of the titanium dioxide is preferably anatase, rutile, or a combination thereof. Also provided is a method of producing a vinyl chloride-based polymer composition that includes subjecting a vinyl chloride monomer, or a mixture of a vinyl chloride monomer and a monomer that is copolymerizable therewith, to suspension polymerization within an aqueous medium, and also includes adding a titanium dioxide having an average particle diameter of 5 to 50 nm to the raw material prior to commencement of the polymerization, to the reaction mixture during the polymerization, to the reaction product following completion of the polymerization, or to a combination of two or more of the raw material, the reaction mixture and the reaction product. The vinyl chloride-based polymer composition obtained using this method exhibits excellent thermal stability.
    • 本发明提供一种氯乙烯类树脂组合物,其含有平均粒径为5〜50nm的氯乙烯类树脂和二氧化钛,相对于质量为1000〜10000ppm 氯乙烯类树脂。 通过向上述量的氯乙烯类树脂中添加平均粒径为5〜50nm的二氧化钛,可以得到热稳定性优异的氯乙烯系树脂组合物。 在氯乙烯系树脂组合物中,二氧化钛的结晶形态优选为锐钛矿型,金红石型,或其组合。 还提供了一种生产氯乙烯基聚合物组合物的方法,该组合物包括使氯乙烯单体或氯乙烯单体与其可共聚的单体的混合物在水性介质中进行悬浮聚合,并且还包括加入 在聚合开始前与原料平均粒径为5〜50nm的二氧化钛,聚合期间的反应混合物,聚合完成后的反应产物,或两种以上的组合 的原料,反应混合物和反应产物。 使用该方法获得的基于氯乙烯的聚合物组合物显示出优异的热稳定性。