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1.发明授权
公开(公告)号：US4528336A
公开(公告)日：1985-07-09
申请号：US361040
申请日：1982-03-23
CPC分类号： C08F2/004
摘要： The invention provides a very efficient method with highly durable effect for preventing polymer scale deposition on the reactor walls and other surfaces coming into contact with the monomer during polymerization of an ethylenically unsaturated polymerizable monomer in an aqueous medium such as in the suspension polymerization of vinyl chloride. The method comprises coating the reactor walls, prior to polymerization, with a novel coating material which is a condensation product obtained by the condensation reaction of an aromatic amine compound such as aniline and an aromatic nitro compound such as nitrobenzene in the presence of a mineral acid and a specified condensation catalyst. It is sometimes preferable that the condensation product is basified or treated with an alkali or ammonium compound to be imparted with a modified solubility behavior.
摘要翻译： 本发明提供了一种非常有效的方法，其具有高度耐久的效果，用于防止聚合物垢沉积在反应器壁和其它与单体接触的表面中，所述表面在烯属不饱和可聚合单体在水性介质中聚合期间，例如在氯乙烯的悬浮聚合中 。 该方法包括在聚合之前用反应器壁涂覆新的涂料，该涂料是通过在无机酸存在下芳族胺化合物如苯胺和芳族硝基化合物如硝基苯的缩合反应获得的缩合产物 和指定的缩合催化剂。 有时优选将缩合产物碱化或用碱或铵化合物处理以赋予改性的溶解行为。
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公开(公告)号：US4757124A
公开(公告)日：1988-07-12
申请号：US76996
申请日：1987-07-21
CPC分类号： C08F2/004
摘要： This process is a process for production of a vinyl chloride polymer by suspension polymerization or emulsion polymerization of vinyl chloride monomer or a mixture of vinyl chloride monomer with a vinyl monomer copolymerizable with said vinyl chloride monomer in an aqueous medium, characterized in that the polymerization is carried out in a polymerizer, the inner wall surface and portions of the auxiliary equipment thereof which may come into contact with the monomer during polymerization being previously coated with a scaling preventive comprising at least one selected from dyes, pigments and aromatic or heterocyclic compounds having at least 5 conjugated .pi. bonds, while controlling the chloride ion concentration in the reaction mixture to not higher than 100 ppm. According to said process, scaling onto the inner wall surface of a polymerizer, etc. during polymerization can be prevented effectively and surely.
摘要翻译： 该方法是通过氯乙烯单体或氯乙烯单体与可与所述氯乙烯单体在水性介质中共聚的乙烯基单体的混合物的悬浮聚合或乳液聚合制备氯乙烯聚合物的方法，其特征在于聚合是 在聚合反应器中进行的内壁表面及其辅助设备的部分可在聚合期间与单体接触，预先涂覆防垢剂，其包含选自染料，颜料和芳族或杂环化合物中的至少一种，其具有 最少5个共轭π键，同时将反应混合物中的氯离子浓度控制在不高于100ppm。 根据所述方法，能够有效且可靠地防止在聚合反应期间缩聚到聚合反应器内壁表面等。
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公开(公告)号：US4758639A
公开(公告)日：1988-07-19
申请号：US94020
申请日：1987-09-03
CPC分类号： C08F2/004
摘要： A process for production of a vinyl polymer by suspension polymerization or emulsion polymerization of at least one kind of vinyl monomer in an aqueous medium is disclosed.In this process, the polymerization is carried out in a polymerizer, the inner wall surface and portions of the auxiliary equipment thereof which may come into contact with the monomer during polymerization having a surface roughness of not greater than 5 .mu.m and being previously coated with a scaling preventive comprising at least one selected from dyes, pigments and aromatic or heterocyclic compounds having at least 5 conjugated .pi. bonds. According to this process, scaling on the inner wall surface of a polymerizer, etc. during polymerization can be prevented effectively and surely.
摘要翻译： 公开了通过在水性介质中悬浮聚合或至少一种乙烯基单体的乳液聚合制备乙烯基聚合物的方法。 在该方法中，聚合反应在聚合反应器中进行，其内壁表面及其辅助设备的部分可在聚合过程中与单体接触，表面粗糙度不大于5μm，并预先涂覆 防垢剂包含选自染料，颜料和具有至少5个共轭π键的芳族或杂环化合物中的至少一种。 根据该方法，可以有效且可靠地防止聚合反应器内壁表面的缩小。
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公开(公告)号：US4173696A
公开(公告)日：1979-11-06
申请号：US871249
申请日：1978-01-23
CPC分类号： C08F2/004
摘要： A novel and improved method for polymerizing a vinyl monomer in a polymerization reactor is provided. The inner walls of the polymerization reactor and other surfaces coming into contact with the monomer are coated with an aqueous liquid containing at least one alkali metal or ammonium salt of an anionic dye of the sulfonic carboxylic acid form and having a pH value adjusted not to exceed 7 by aid of a pH adjusting agent, and the thus coated surfaces are dried with heat before the polymerization is conducted. The method serves to greatly reduce the deposition of polymer scale on those surfaces and, consequently, improve the productivity as well as the quality of polymer product.
摘要翻译： 提供了一种在聚合反应器中聚合乙烯基单体的新颖和改进的方法。 聚合反应器的内壁和与单体接触的其它表面涂覆有含有至少一种磺酸羧酸形式的阴离子染料的碱金属盐或铵盐的水溶液，其pH值调节不超过 通过pH调节剂，并且在进行聚合之前将这样涂覆的表面加热干燥。 该方法用于大大降低聚合物垢在这些表面上的沉积，从而提高聚合物产品的生产率和质量。
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公开(公告)号：US4090015A
公开(公告)日：1978-05-16
申请号：US818756
申请日：1977-07-25
IPC分类号： C08F2/00 , C08F2/22 , C08F2/24 , C08F12/08 , C08F279/04
CPC分类号： C08F2/004
摘要： In the emulsion polymerization of a dienic monomer or a mixture containing a dienic monomer and at least one other copolymerizable monomer in an aqueous medium, the deposition of polymer scale on the inner walls of the polymerization reactor and other surfaces in contact with the monomer or monomeric mixture can be remarkably reduced or prevented by providing coating layers of an organopolysiloxane on those surfaces, prior to the polymerization, by applying the organopolysiloxane directly to the surfaces or by applying one or a mixture of hydrolyzable organosilanes to the surfaces, followed by hydrolysis-condensation of the silanes, to form the organopolysiloxane in situ.
摘要翻译： 在含水介质中的二烯单体或含有二烯单体和至少一种其它可共聚单体的混合物的乳液聚合中，在聚合反应器的内壁和与单体或单体接触的其它表面上沉积聚合物垢 通过在聚合前在这些表面上提供有机聚硅氧烷的涂层，通过将有机聚硅氧烷直接施加在表面上或者通过将表面上施加一种或可水解有机硅烷的混合物，然后进行水解缩合，可以显着降低或防止混合物 的硅烷，原位形成有机聚硅氧烷。
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6.发明授权
公开(公告)号：US4272622A
公开(公告)日：1981-06-09
申请号：US149414
申请日：1980-05-13
CPC分类号： C08F2/004
摘要： The invention provides a novel method for preventing polymer scale deposition on the reactor walls in the polymerization of vinyl chloride, vinylidene chloride, styrene and other ethylenically unsaturated monomers in an aqueous medium. The inventive method comprises coating the reactor walls, piror to polymerization, with an aqueous coating solution containing a water-soluble ionic polymer and a water-soluble ionic dye having counteractive polarity to the polarity of the water-soluble ionic polymer compound. In other words, a water-soluble anionic dye is used as combined with a water-soluble cationic polymer and a water-soluble cationic dye is used as combined with a water-soluble anionic polymer compound. The scale preventing effect obtained with the combined use of the above two components can be further increased when the aqueous coating solution is admixed with a monovalent alcohol having from 3 to 6 carbon atoms in a molecule owing to the improved spreading of the aqueous solution on the metal surface of the reactor walls. The effect of the method is so remarkable and reliable that polymerization of styrene and other monomers can be performed in a stainless steel polymerization reactor, said polymerization being hitherto conducted in a glass-lined reactor due to the lack of an efficient method for preventing polymer scale deposition on the stainless steel surfaces.
摘要翻译： 本发明提供了一种用于在水性介质中聚合氯乙烯，偏二氯乙烯，苯乙烯和其它烯键式不饱和单体的聚合物垢沉积在反应器壁上的新方法。 本发明的方法包括用含有水溶性离子聚合物的水性涂料溶液和反应器壁，吡喃聚合反应，并且与水溶性离子聚合物化合物的极性具有相反极性的水溶性离子染料。 换句话说，使用水溶性阴离子染料与水溶性阳离子聚合物组合，并且使用水溶性阳离子染料与水溶性阴离子聚合物化合物组合。 当水性涂料溶液与分子中具有3至6个碳原子的一价醇混合时，可以进一步提高通过组合使用上述两种组分获得的防垢效果，这是由于水溶液在 反应器壁的金属表面。 该方法的效果是非常显着和可靠的，苯乙烯和其它单体的聚合可以在不锈钢聚合反应器中进行，所述聚合迄今为止在玻璃衬里的反应器中进行，因为缺乏有效的防止聚合物垢的方法 沉积在不锈钢表面上。
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公开(公告)号：US5298220A
公开(公告)日：1994-03-29
申请号：US000703
申请日：1993-01-05
申请人： Toshihide Shimizu , Ichiro Kaneko , Mikio Watanabe
发明人： Toshihide Shimizu , Ichiro Kaneko , Mikio Watanabe
CPC分类号： C08F2/004
摘要： This process is a method of preventing polymer scale formation in a polymerization vessel during the polymerization of a monomer having an ethylenically unsaturated double bond. The inner wall surface of a polymerization vessel is coated with a water-based coating solution containing (a) a water-soluble anionic dye and (b) at least water-insoluble cationic dye or water-insoluble nitrogen-containing organic compound, where the water-based coating solution has a pH of 7 or less. The coating solution is applied and then dried to form a coating.
摘要翻译： 该方法是在具有烯键式不饱和双键的单体聚合期间防止聚合容器中聚合物垢形成的方法。 聚合容器的内壁表面涂覆有含有（a）水溶性阴离子染料和（b）至少水不溶性阳离子染料或水不溶性含氮有机化合物的水性涂料溶液，其中 水性涂布液的pH为7以下。 涂布溶液，然后干燥以形成涂层。
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公开(公告)号：US5115051A
公开(公告)日：1992-05-19
申请号：US447856
申请日：1989-12-08
申请人： Toshihide Shimizu , Ichiro Kaneko , Mikio Watanabe
发明人： Toshihide Shimizu , Ichiro Kaneko , Mikio Watanabe
IPC分类号： C08F2/00
CPC分类号： C08F2/004
摘要： A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel of which the inner wall has been previously first coated with(A) a coating solution comprising a condensate of an aromatic compound and at least one member selected from the group consisting of metal compounds and inorganic colloids, and the coating thus formed has been then coated with(B) a coating solution comprising at least one member selected from the group consisting of anionic polymeric compounds, amphoteric polymeric compounds and hydroxyl group-containing polymeric compounds; and a polymerization vessel having a coating thus formed. According this method, polymer scale deposition on the inner wall, etc. of the polymerization vessel can be effectively prevented.
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公开(公告)号：US5053466A
公开(公告)日：1991-10-01
申请号：US446681
申请日：1989-12-06
申请人： Toshihide Shimizu , Ichiro Kaneko , Mikio Watanabe
发明人： Toshihide Shimizu , Ichiro Kaneko , Mikio Watanabe
IPC分类号： C08F2/00
CPC分类号： C08F2/004
摘要： A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization of which the inner wall has been previously coated with a coating solution comprising:(A) an aromatic amine-based condensate,(B) at least one member selected from the group consisting of alkali metal salts and ammonium salts of a sulfonation product prepared by sulfonation of an aromatic amine-based condensate, and(C) at least one member selected from the group consisting of metal compounds, inorganic colloids, dyes and pigments; a scale preventive agent comprising the components (A), (B) and (C); and a polymerization vessel having a coating comprising the scale preventive agent. According the method, polymer scale deposition on the inner wall, etc. of the polymerization vessel can be effectively prevented.
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10.发明授权Method of preventing polymer scale deposition and polymer scale preventive agent 失效防止聚合物垢沉积的方法和聚合物防垢剂
公开(公告)号：US5214113A
公开(公告)日：1993-05-25
申请号：US578349
申请日：1990-09-06
申请人： Toshihide Shimizu , Susumu Ueno , Ichiro Kaneko , Mikio Watanabe
发明人： Toshihide Shimizu , Susumu Ueno , Ichiro Kaneko , Mikio Watanabe
IPC分类号： C08F2/00
CPC分类号： C08F2/004
摘要： A method of preventing polymer scale deposition during polymerization of a monomer having an ethylenically double bond in a polymerization vessel, comprising the step of carrying out said polymerization in a polymerization vessel of which the inner wall surface has a coating comprising:(A) a lignin, and(B) a cellulose derivative; and a polymer scale preventive agent comprising said components (A) and (B).Deposition of polymer scale can be effectively prevented; polymers with high whiteness can be prepared; the scale preventive agent used has no poisonousness and are highly safe, therefore this method can be performed with high safe.
摘要翻译： 一种防止在聚合容器中具有烯键式双键的单体聚合期间的聚合物垢沉积的方法，包括在其内壁表面具有包含以下物质的聚合容器中进行所述聚合的步骤：（A）木质素 ，（B）纤维素衍生物; 和包含所述组分（A）和（B））的聚合物防垢剂。 可有效防止聚合物垢的沉积; 高白度聚合物可以制备; 所用的防垢剂无毒，安全性高，因此该方法可以安全使用。
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