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138 条记录 (耗时 0.019 秒)

    Method of continuous manufacturing of polymers or copolymers of trioxane
    12.
    发明授权
    Method of continuous manufacturing of polymers or copolymers of trioxane 失效
    连续制造三恶烷的聚合物或共聚物的方法

    公开(公告)号：US4727132A

    公开(公告)日：1988-02-23

    申请号：US861031

    申请日：1986-05-08

    申请人： Tsuyoshi Minamisawa ,  Shuichi Chino ,  Noboru Goto ,  Masaaki Nakamura

    发明人： Tsuyoshi Minamisawa ,  Shuichi Chino ,  Noboru Goto ,  Masaaki Nakamura

    IPC分类号： B01J19/20 ,  C08G2/00 ,  C08G2/10 ,  C08G2/18

    CPC分类号： C08G2/10 ,  B01J19/20 ,  C08G2/18

    摘要： A trioxane polymer is continuously produced with a continuous stirring-mixing apparatus. The apparatus includes two mutually parallel rotational shafts, a large number of paddles mounted on each rotational shaft and a barrel having an inside wall surface along the circular surface traced by the respective paddles, as they rotate. Thus, the barrel has a cross-section in the shape of two circles concentric with the two rotational shafts, which overlap each other. The apparatus is also provided with a temperature controlling jacket. In the operation of the apparatus, a material mixture of trioxane, catalyzer, other copolymerizable comonomers, as the case may be, and additives, is continuously fed in through a material supply port located at one end thereof, then, the material mixture is subjected to polymerization or copolymerization reaction, while being stirred by turning the aforementioned rotational shafts in an opposite direction to each other and, thereafter, the polymers or copolymers of trioxane are taken out as fine granules through a discharge port located at the other end thereof. The method is characterized in that at least one set of paddles of a sectional shape which meets a requirement that when a pair of paddles facing each other are turned in different directions around their rotational axes, the clearance between them shall be kept always as narrow as less than 3/100 of the barrel ID, are mounted on each shaft, adjoining each other, and the different direction turning is made in a state such that the clearance between the farthest part from the rotational axis of said paddle and the inside wall of the barrel are always maintained as narrow as less than 3/100 of the barrel ID.

    摘要翻译： 用连续搅拌混合装置连续生产三恶烷聚合物。 该装置包括两个相互平行的旋转轴，安装在每个旋转轴上的大量叶片和当旋转时由相应叶片沿着圆形表面的内壁表面的筒体。 因此，筒体具有与两个相互重叠的两个旋转轴同心的两个圆形的横截面。 该设备还设置有温度控制护套。 在设备的操作中，三恶烷，催化剂，其他可共聚的共聚单体的材料混合物（视情况而定）和添加剂通过位于其一端的材料供给口连续进料，然后将材料混合物 进行聚合或共聚反应，同时通过将上述旋转轴彼此相反的方向转动而进行搅拌，此后，通过位于其另一端的排出口将三恶烷的聚合物或共聚物作为细颗粒取出。 该方法的特征在于，至少一组截面形状的桨叶满足要求当一对彼此相对的桨叶围绕其旋转轴线在不同方向转动时，它们之间的间隙应保持总是如 小于3/100的桶ID，安装在彼此相邻的每个轴上，并且不同的方向转动形成为使得最远部分与所述桨叶的旋转轴线之间的间隙和 枪管始终保持在小于桶ID的3/100以下的窄度。

    Method of continuous polymerization
    13.
    发明授权
    Method of continuous polymerization 失效
    连续聚合方法

    公开(公告)号：US4661570A

    公开(公告)日：1987-04-28

    申请号：US853096

    申请日：1986-04-17

    申请人： Masami Yamawaki ,  Shuichi Chino ,  Tsuyoshi Minamisawa ,  Masaaki Nakamura

    发明人： Masami Yamawaki ,  Shuichi Chino ,  Tsuyoshi Minamisawa ,  Masaaki Nakamura

    IPC分类号： B01J19/20 ,  C08F2/00 ,  C08G2/00 ,  C08G2/10 ,  C08F2/02

    CPC分类号： C08G2/00 ,  B01J19/20 ,  B01J2219/182

    摘要： A solid polymerization product is continuously produced from a liquid stock by employing a continuous agitator-mixer type reactor including two parallel shafts rotatable in same direction or in opposite directions, a multiplicity of paddles mounted on each of the shafts, and a barrel with its inner periphery proximate to the outer peripheries of the paddles, said paddles being arranged so that the major axis end of each paddle on one of the shafts is allowed to periodically come close to the minor axis ends of a corresponding paddle on the other shaft, said reactor being such that feed stock is charged from an inlet port provided at one end of the longitudinal of the reactor and polymerization product is discharged from an outlet port provided at the other end, said method of continuous polymerization being characterized in that the rear-side portion of the reactor including the outlet port is raised so that the major axis of the reactor has a slope angle of 1.degree.-10.degree. relative to the horizontal, whereby reaction is allowed to take place in the reactor as installed in such inclined state.

    摘要翻译： 通过使用连续的搅拌 - 混合型反应器连续地制备固体聚合产物，该反应器包括在相同方向或相反方向上可旋转的两个平行的轴，安装在每个轴上的多个桨叶和其内部的筒 所述桨叶被布置成使得其中一个轴上的每个桨叶的长轴端周期性地接近另一轴上相应桨叶的短轴端，所述反应器 使得原料从设置在反应器纵向一端的入口进料，聚合产物从设置在另一端的出口排出，所述连续聚合方法的特征在于后侧部分 包括出口的反应器升高，使得反应器的长轴相对于t具有1°-10°的倾斜角 他是水平的，由此允许在反应器中以这种倾斜状态安装反应。

    Process for preparing copolymers of trioxane
    16.
    发明授权
    Process for preparing copolymers of trioxane 失效
    制备三恶烷共聚物的方法

    公开(公告)号：US4045415A

    公开(公告)日：1977-08-30

    申请号：US587839

    申请日：1975-06-18

    申请人： Gunter Sextro ,  Karlheinz Burg ,  Klemens Gutweiler ,  Klaus Durichen

    发明人： Gunter Sextro ,  Karlheinz Burg ,  Klemens Gutweiler ,  Klaus Durichen

    IPC分类号： B01J8/00 ,  B01J19/00 ,  C08G2/24 ,  C08G2/10 ,  C08F3/00 ,  C08F6/00

    CPC分类号： B01J19/0013 ,  B01J8/002 ,  C08G2/24 ,  B01J2219/00076 ,  B01J2219/00162 ,  B01J2219/00168 ,  B01J2219/00184 ,  Y10S526/914

    摘要： Copolymers of trioxane with cyclic acetals may be prepared by copolymerization of the monomers in solid phase. For this purpose the monomers are first mixed homogeneously in a liquid phase with a catalyst, the mixture is then solidified by cooling and finally polymerized by heating, while maintaining it in a solid phase. The liquid phase mixture is cooled to solidify it immediately after mixing and prior to development of turbidity in the liquid mixture. Cooling can be effected, for example, on a chilled rotating roll. The moulding composition, obtained after having worked up the copolymer as usual, is a suitable material for the preparation of molded semi-finished products and finished articles.

    摘要翻译： 三恶烷与环状缩醛的共聚物可以通过固相中的单体的共聚来制备。 为此，首先将单体与催化剂在液相中均匀混合，然后通过冷却使混合物固化，最后通过加热聚合，同时保持固相。 将液相混合物在混合后立即冷却，并在液体混合物中发生浑浊之前固化。 冷却可以例如在冷却的旋转辊上进行。 通常将共聚物处理后得到的成型组合物是制备成型半成品和成品的合适材料。

    Thermoplastic molding composition based on poly (oxymethylenes)
    17.
    发明授权
    Thermoplastic molding composition based on poly (oxymethylenes) 失效
    基于聚（氧甲基）的热塑性模塑组合物

    公开(公告)号：US3925505A

    公开(公告)日：1975-12-09

    申请号：US46689974

    申请日：1974-05-03

    申请人： HOECHST AG

    发明人： SEXTRO GUNTER ,  BURG KARLHEINZ

    IPC分类号： C08G2/10 ,  C08G2/18 ,  C08G2/38 ,  C08G16/06 ,  C08G4/00

    CPC分类号： C08G2/18 ,  C08G2/10 ,  C08G2/38

    摘要： A modified thermoplastic molding composition based on polyacetal prepared by polymerizing trioxane in the presence of a polyether by means of a catalyst; the polyether is a copolymer of at least 2 different cyclic ethers. The polymerization may also take place in the presence of additional monomers, suitable for the copolymerization with trioxane. The molding composition is suitable for the manufacture of different kinds of shaped articles, especially machine parts.

    摘要翻译： 一种基于聚缩醛的改性热塑性模塑组合物，其通过在聚醚存在下通过催化剂聚合三恶烷而制备; 聚醚是至少2种不同的环醚的共聚物。 聚合还可以在适用于与三恶烷共聚的其它单体的存在下进行。 该模塑组合物适用于制造不同种类的成型制品，特别是机器部件。