专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP1950228A1 Dispersion stabilizer for suspension polymerization and method of producing vinyl chloride-based polymer using same 审中-公开
标题翻译：对于悬浮聚合和工艺用于生产乙烯基分散稳定剂氯乙烯系聚合物，使
公开(公告)号：EP1950228A1
公开(公告)日：2008-07-30
申请号：EP08250270.9
申请日：2008-01-22
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Ooura, Makoto , Amano, Tadashi , Shigemitsu, Minoru , Niinobe, Shingo
IPC分类号： C08F14/06 , C08B11/193 , C08L1/28
CPC分类号： C08F14/06 , C08L1/284 , C08L27/06 , C08F2/20 , C08L2666/26
摘要： Provided is a dispersion stabilizer for suspension polymerization that contains a hydroxypropylmethylcellulose with a degree of methoxy group substitution of 27 to 30% by mass and a degree of hydroxypropoxy group substitution of 5 to 12% by mass, in which the viscosity at 20°C of a 2% by mass aqueous solution of the hydroxypropylmethylcellulose is within a range from 5 to 1,600 mPa·s, and in 2 ml of a 0.2% by mass solution of the hydroxypropylmethylcellulose, the number of undissolved fibers with a particle size within a range from 8 to 200 µm, as measured by a Coulter counter method, is not more than 1,000, and the number of undissolved fibers with a particle size of 50 µm or greater measured using the same method is not more than 20. By employing a method of producing a vinyl chloride-based polymer that uses this dispersion stabilizer, a vinyl chloride-based polymer with extremely low levels of fish eyes and defects derived from foreign objects can be produced.
摘要翻译：提供的是用于悬浮聚合用分散稳定剂并包含按质量计的程度的27〜30％的甲氧基取代度为5〜12％羟丙氧基取代按质量计，羟丙基甲基纤维素，其中所述粘度在20℃下 2％的由羟基丙基甲基纤维素的质量wässrige溶液是从5到1600毫帕·秒的范围内，并在2ml的0.2％由羟丙基甲基纤维素，其粒径不溶解的纤维的范围内从该数中的质量的溶液 8至200微米，由库尔特计数器法所测量，不大于1000以上，并且具有50微米或更大的颗粒尺寸使用相同的方法测量未溶解的纤维的数目不大于20。更通过采用的方法制备的氯乙烯类聚合物分散稳定剂没有使用这个，可以制备具有鱼眼和从异物衍生的缺陷的极低水平的基于氯乙烯的聚合物。

2. 发明公开

EP0661093A3 Polymerization apparatus effective in preventing polymer scale deposition and process of producing polymer using the same 失效
标题翻译：使用该聚合装置有效防止聚合物结垢沉积和生产聚合物的方法
公开(公告)号：EP0661093A3
公开(公告)日：1995-08-02
申请号：EP94102000.0
申请日：1994-02-09
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Ueda, Takuya , Shirota, Yoshihiro , Hirai, Yoshihiko , Maruyama, Toshiaki , Amano, Tadashi
IPC分类号： B01J19/00 , C08F2/18 , C08F14/06
CPC分类号： C08F2/002 , B01J19/002 , B01J2219/00252 , C08F14/06 , C08F2/18
摘要： A polymerization apparatus, comprises a polymerization vessel (1), a reflux condenser installed outside the polymerization vessel and a pipe (2) connected between the reflux condenser and a wall (1a) of the polymerization vessel with an end thereof opening into a gaseous phase region inside the polymerization vessel, for returning the liquid condensate to the polymerization vessel, wherein said end projects from an inner surface of the wall of the polymerization vessel into the gaseous phase region. In polymerizing a monomer having an ethylenically unsaturated double bond using the polymerization apparatus, the quantity of heat removed by the reflux condenser is increased stepwise or continuously with progress of the polymerization, such that not less than 20% of the total reaction heat generated during the whole course of the polymerization is removed by the reflux condenser.
摘要翻译：一种聚合设备，包括聚合反应器（1），安装在聚合反应器外部的回流冷凝器和连接在回流冷凝器和聚合反应器的壁（1a）之间的管（2），其一端开口成气相用于将液体冷凝物返回到聚合反应器中，其中所述末端从聚合反应器壁的内表面突出到气相区中。在使用聚合装置使具有烯键式不饱和双键的单体聚合时，随着聚合的进行，由回流冷凝器除去的热量阶段性地或连续地增加，使得不少于20％通过回流冷凝器除去整个聚合过程。

3. 发明公开

EP0661093A2 Polymerization apparatus effective in preventing polymer scale deposition and process of producing polymer using the same 失效
标题翻译：聚合装置，可以防止在其中聚合物沉积和进程使用该装置的聚合物的制备。
公开(公告)号：EP0661093A2
公开(公告)日：1995-07-05
申请号：EP94102000.0
申请日：1994-02-09
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Ueda, Takuya , Shirota, Yoshihiro , Hirai, Yoshihiko , Maruyama, Toshiaki , Amano, Tadashi
IPC分类号： B01J19/00 , C08F2/18 , C08F14/06
CPC分类号： C08F2/002 , B01J19/002 , B01J2219/00252 , C08F14/06 , C08F2/18
摘要： A polymerization apparatus, comprises a polymerization vessel (1), a reflux condenser installed outside the polymerization vessel and a pipe (2) connected between the reflux condenser and a wall (1a) of the polymerization vessel with an end thereof opening into a gaseous phase region inside the polymerization vessel, for returning the liquid condensate to the polymerization vessel, wherein said end projects from an inner surface of the wall of the polymerization vessel into the gaseous phase region. In polymerizing a monomer having an ethylenically unsaturated double bond using the polymerization apparatus, the quantity of heat removed by the reflux condenser is increased stepwise or continuously with progress of the polymerization, such that not less than 20% of the total reaction heat generated during the whole course of the polymerization is removed by the reflux condenser.
摘要翻译：聚合装置，包括一个聚合容器（1），连接在所述聚合反应器的回流冷凝器和一个壁（1a）的间同在其一端开口在聚合容器和管（2）外部安装的回流冷凝器成气相聚合容器内部的区域，用于将液体冷凝物从聚合容器的壁的内表面返回到聚合容器中，worin所述端部突出到气相区域。在具有使用该聚合设备以烯属不饱和双键的单体进行聚合，热通过回流冷凝器取出量增加逐步或连续地与聚合的进展，求没有在产生的总反应热的20％以上聚合的全过程是通过回流冷凝器取出。

4. 发明公开

EP0623632A2 Processes for preparing vinyl chloride polymers 失效
标题翻译： Verfahren zur Herstellung von Vinylchloride-Polymeren。
公开(公告)号：EP0623632A2
公开(公告)日：1994-11-09
申请号：EP94303257.3
申请日：1994-05-05
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Amano, Tadashi , Hiyama, Tadayoshi, 3-208, Shin-Etsu Chemical
IPC分类号： C08F14/06 , C08F2/20
CPC分类号： C08F14/06 , C08F2/20
摘要： Vinyl chloride polymer is prepared by suspension polymerization of monomeric vinyl chloride or a mixture of vinyl chloride and another monomer in an aqueous medium while agitating the suspension. A first partially saponified polyvinyl alcohol having a degree of saponification of 60 - 80 mol% and an average degree of polymerization of 500-1,000 is added as a suspension stabilizer at the start of polymerization, and a second partially saponified polyvinyl alcohol having a degree of saponification of 75 - 85 mol% and an average degree of polymerization of 1,500-2,700 is added while the conversion is 30% to 60%. The agitating power is controlled to 80 - 120 kg·m/s·ton from the start of polymerization to a conversion of 20 to 50%, and to 130-200 kg·m/s·ton from then to the completion of polymerization. The resulting vinyl chloride polymer is of quality as demonstrated by a high bulk density and improved free flow, monomer removal, gelation, and plasticizer absorption as well as minimal fish eye. Scale build-up on the reactor wall is minimized.
摘要翻译：通过在搅拌悬浮液的同时在水性介质中将单体氯乙烯或氯乙烯和其它单体的混合物悬浮聚合制备氯乙烯聚合物。在聚合开始时，将作为悬浮稳定剂的皂化度为60〜80摩尔％，平均聚合度为500〜1,000的第一部分皂化聚乙烯醇加入到第二部分皂化聚乙烯醇中，皂化为75-85mol％，平均聚合度为1,500-2,700，转化率为30〜60％。从聚合开始将搅拌功率控制在80-120kg.m / s.ton，转化率为20-50％，从此聚合完成至130-200kg.m / s。得到的氯乙烯聚合物的质量如高体积密度和改善的自由流动，单体去除，凝胶化和增塑剂吸收以及最小的鱼眼所证明的。反应器壁上的积垢最小化。

5. 发明公开

EP0608567A1 Process for producing a vinyl chloride-based polymer 失效
标题翻译： Verfahren zur Herstellung von einem Vinyl-Chlorid-Polymer。
公开(公告)号：EP0608567A1
公开(公告)日：1994-08-03
申请号：EP93121038.9
申请日：1993-12-28
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Amano, Tadashi , Ohnishi, Shuji
IPC分类号： C08F14/06 , C08F2/18 , C08F2/00 , F04D1/04 , F04D7/04
CPC分类号： F04D29/183 , B01J19/0006 , B01J19/1881 , C08F14/06 , F04D1/04 , C08F2/18
摘要： A process for producing a vinyl chloride-based polymer by suspension polymerizing vinyl chloride monomer or the like while circulating a reaction mixture in a polymerization vessel by a circulating pump through a circulation line led out from the polymerization vessel to extend through a heat exchanger back to the vessel, wherein the pump comprises a conical hub (15) and an impeller comprised of a spirally shaped single blade (16) provided on the hub (15), and, during polymerization, the stirring energy (A) applied to the reaction mixture by the stirrer in the polymerization vessel and the circulating energy (B) exerted to the reaction mixture by the circulating pump in the circulation line are controlled so as to satisfy the relationships:

(A) + (B) = from 1.5 to 4.0 kW/t (1), and

(B) / [(A) + (B)] = from 0.1 to 0.6 (2).

Polymer scale is prevented from being deposited on inner surfaces of the heat exchanger, circulation piping, circulating pump or the like.
摘要翻译：一种氯乙烯系聚合物的制造方法，其通过将聚合容器内的反应混合物循环通过循环泵从聚合容器引出的循环管道循环，使氯乙烯单体等悬浮聚合而延伸通过热交换器回到所述容器，其中所述泵包括锥形轮毂（15）和由设置在所述轮毂（15）上的螺旋形单个叶片（16）组成的叶轮，并且在聚合期间，施加到所述反应混合物的搅拌能量（A）通过聚合容器中的搅拌器和通过循环管线中的循环泵施加到反应混合物的循环能（B），以满足以下关系：（A）+（B）= 1.5〜4.0kW / t（1）和（B）/ [（A）+（B）] = 0.1〜0.6（2）。防止聚合物垢沉积在热交换器，循环管道，循环泵等的内表面上。

6. 发明授权

EP0526741B1 Reactor system for suspension polymerisation of vinyl chloride 失效
标题翻译：反应器系统，用于氯乙烯的悬浮聚合。
公开(公告)号：EP0526741B1
公开(公告)日：1995-10-04
申请号：EP92111221.5
申请日：1992-07-02
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Amano, Tadashi , Ohnishi, Shuji
IPC分类号： B01J19/18 , B01J19/24 , B01J19/00 , C08F2/18 , C08F14/06
CPC分类号： B01J19/2465 , B01J19/002 , B01J2219/00094 , B01J2219/00103 , B01J2219/00114 , B01J2219/00252 , C08F2/002

7. 发明公开

EP0659777A1 Process for preparing vinyl chloride polymer 失效
标题翻译： Verfahren zur Herstellung eines Vinylchloridpolymeres。
公开(公告)号：EP0659777A1
公开(公告)日：1995-06-28
申请号：EP94112996.7
申请日：1994-08-19
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Hiyama, Tadayoshi, 3-208, Shin-Etsu Chemical Doai , Yokota, Toru , Amano, Tadashi
IPC分类号： C08F14/06 , C08F2/20
CPC分类号： C08F14/06 , C08F2/20
摘要： Polyvinyl chloride is prepared by suspension polymerization of a monomeric charge of vinyl chloride dispersed and suspended in an aqueous medium while agitating the suspension. An oil-soluble partially saponified polyvinyl alcohol is added to the monomeric charge as a dispersant at the start of polymerization. A water-soluble partially saponified polyvinyl alcohol and/or a hydroxypropylmethyl cellulose is continuously added as a suspending agent from the start of polymerization. The suspending agent is entirely added while the polymerization rate is in the range of 5-50%. The agitating power applied to the aqueous suspension is 50-110 kg·m/s·ton while the suspending agent is being added, and increased above 110 kg·m/s·ton after the completion of addition. The resulting polymer has a high bulk density and a sharp particle size distribution and is susceptible to extrusion.
摘要翻译：通过在搅拌悬浮液的同时分散并悬浮在水性介质中的氯乙烯的单体电荷的悬浮聚合制备聚氯乙烯。在聚合开始时，将作为分散剂的油溶性部分皂化聚乙烯醇加入到单体电荷中。从聚合开始起，作为悬浮剂连续添加水溶性部分皂化的聚乙烯醇和/或羟丙基甲基纤维素。当聚合速率在5-50％的范围内时，全部添加悬浮剂。施加到水悬浮液的搅拌功率为50-110kg.m / s，同时加入悬浮剂，并且在添加完成后增加到110kg.m / s.ton以上。所得聚合物具有高的堆积密度和尖锐的粒度分布，并且易于挤出。

8. 发明公开

EP0526741A3 Reactor system for suspension polymerisation of vinyl chloride 失效
标题翻译：氯乙烯悬浮聚合反应体系
公开(公告)号：EP0526741A3
公开(公告)日：1993-02-24
申请号：EP92111221.5
申请日：1992-07-02
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Amano, Tadashi , Ohnishi, Shuji
IPC分类号： B01J19/18 , B01J19/24 , B01J19/00 , C08F2/18 , C08F14/06
CPC分类号： B01J19/2465 , B01J19/002 , B01J2219/00094 , B01J2219/00103 , B01J2219/00114 , B01J2219/00252 , C08F2/002
摘要： An improvement is proposed in a polymerization reactor system for the suspension polymerization of vinyl chloride monomer comprising a reactor (1) and an external heat exchanger (2) connected to the reactor (1) by a pipe line (3) through a pumping means (4) in order to supplement the deficiency in the cooling capacity of the jacket of (6) the reactor and/or reflux condenser installed thereto when the capacity of the reactor is greatly increased. While such an external circulating circuit using a conventional pump suffers from a serious problem of polymer scale deposition on the inner walls of the circuit and degradation of the quality of the resin product, these drawbacks can be dissolved by using a specific pump having an impellor (16) in the form of a single spiral screw blade around a hub (15) having a conical configuration for the circulation of the polymerization mixture through the heat exchanger.

9. 发明公开

EP0526741A2 Reactor system for suspension polymerisation of vinyl chloride 失效
标题翻译： Reaktorsystemfürdie悬浮聚合v乙烯基氯。
公开(公告)号：EP0526741A2
公开(公告)日：1993-02-10
申请号：EP92111221.5
申请日：1992-07-02
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Amano, Tadashi , Ohnishi, Shuji
IPC分类号： B01J19/18 , B01J19/24 , B01J19/00 , C08F2/18 , C08F14/06
CPC分类号： B01J19/2465 , B01J19/002 , B01J2219/00094 , B01J2219/00103 , B01J2219/00114 , B01J2219/00252 , C08F2/002
摘要： An improvement is proposed in a polymerization reactor system for the suspension polymerization of vinyl chloride monomer comprising a reactor (1) and an external heat exchanger (2) connected to the reactor (1) by a pipe line (3) through a pumping means (4) in order to supplement the deficiency in the cooling capacity of the jacket of (6) the reactor and/or reflux condenser installed thereto when the capacity of the reactor is greatly increased. While such an external circulating circuit using a conventional pump suffers from a serious problem of polymer scale deposition on the inner walls of the circuit and degradation of the quality of the resin product, these drawbacks can be dissolved by using a specific pump having an impellor (16) in the form of a single spiral screw blade around a hub (15) having a conical configuration for the circulation of the polymerization mixture through the heat exchanger.
摘要翻译：在用于通过泵送装置（3）通过管线（3）连接到反应器（1）的反应器（1）和外部热交换器（2）的氯乙烯单体的悬浮聚合的聚合反应器系统中提出了改进， 4）为了补充当反应器的容量大大增加时（6）反应器和/或安装在其上的回流冷凝器的夹套的冷却能力的不足。虽然使用常规泵的这种外部循环回路存在聚合物垢沉积在电路内壁上的严重问题和树脂产品质量的降低，但是这些缺点可以通过使用具有叶轮的特定泵来溶解（ 16），其形式为围绕具有锥形构造的轮毂（15）的单螺旋螺旋叶片形式，用于使聚合混合物循环通过热交换器。

10. 发明授权

EP0661093B1 Polymerization apparatus effective in preventing polymer scale deposition and process of producing polymer using the same 失效
标题翻译：聚合反应器用于预防聚合物垢沉积的并为聚合物生产用此工艺。
公开(公告)号：EP0661093B1
公开(公告)日：1998-07-22
申请号：EP94102000.0
申请日：1994-02-09
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Ueda, Takuya , Shirota, Yoshihiro , Hirai, Yoshihiko , Maruyama, Toshiaki , Amano, Tadashi
IPC分类号： B01J19/00 , C08F2/18 , C08F14/06
CPC分类号： C08F2/002 , B01J19/002 , B01J2219/00252 , C08F14/06 , C08F2/18

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式