-
11.发明授权Polymer scale preventive process using a coating of chitosan salt and phenothiazine 失效使用壳聚糖盐和吩噻嗪涂层的聚合物垢预防方法
公开(公告)号：US5486582A
公开(公告)日：1996-01-23
申请号：US357145
申请日：1994-12-15
IPC分类号： C08F2/00
CPC分类号： C08F2/004
摘要： A polymer scale preventive process for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising (A) a water-soluble basic polysaccharide and (B) a phenothiazine. The process is used for forming a coating on the inner wall, etc. of a polymerization vessel, and highly safe for operators. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness or a low initial coloration is obtained.
摘要翻译： 用于聚合具有烯属不饱和双键的单体的聚合物垢预防方法，包括（A）水溶性碱性多糖和（B）吩噻嗪。 该方法用于在聚合容器的内壁等上形成涂层，并且对操作者是高度安全的。 可以有效地防止聚合物垢的沉积，获得高白度或低初始着色的聚合物。
-
公开(公告)号：US5302639A
公开(公告)日：1994-04-12
申请号：US963511
申请日：1992-10-20
CPC分类号： C08F2/004
摘要： A polymer scale preventive agent for use in polymerization of a monomer having an ethylenic double bond, comprising (A) a nitrogen-containing organic compound having at least five continuous conjugated .pi. bonds, (B) an anionic organic compound having at least one group selected from the group consisting of the sulfonic acid group and the carboxylic group and having at least five continuous conjugated .pi. bonds, and (C) a vinylpyrrolidone-based polymer. The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented not only in the liquid phase area but also in the vicinity of the interface between the gas and liquid phases. Products formed from polymer obtained have very few fish eyes.
摘要翻译： 一种用于聚合具有烯属双键的单体的聚合物防垢剂，其包含（A）具有至少五个连续共轭（π）键的含氮有机化合物，（B）具有至少一个 选自磺酸基和羧基并且具有至少五个连续共轭（π）键的基团，和（C）乙烯基吡咯烷酮基聚合物。 该试剂用于在聚合容器的内壁等上形成涂层。 可以有效地防止聚合物垢的沉积，不仅在液相区域中，而且在气相和液相之间的界面附近。 由获得的聚合物形成的产品鱼眼非常少。
-
13.发明授权Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel 失效聚合物垢防止剂，用于防止聚合物垢沉积的聚合容器，以及使用所述容器生产聚合物的方法
公开(公告)号：US5254646A
公开(公告)日：1993-10-19
申请号：US755764
申请日：1991-09-06
IPC分类号： C08F2/00
CPC分类号： C08F2/004
摘要： A polymer scale preventive agent for use in polymerization of a monomer having an ethylenic double bond, comprising at least one compound selected from the group consisting of agars and agaroses. A process of producing a polymer by polymerizing the monomer in a polymerization vessel having on its inner wall surfaces a coating comprising the scale preventive agent. Polymer scale deposition inside the polymerization can be effectively prevented, and polymers with high whiteness can be prepared. Moreover, the scale preventive agent no poisonousness and is highly safe.
摘要翻译： 一种用于聚合具有烯属双键的单体的聚合物防垢剂，其包含至少一种选自琼脂和琼脂的化合物。 通过在聚合容器中聚合单体制备聚合物的方法，该聚合容器在其内壁上具有包含防垢剂的涂层。 可以有效地防止聚合中的聚合物垢沉积，并且可以制备高白度的聚合物。 此外，防垢剂无毒，安全性高。
-
公开(公告)号：US5614593A
公开(公告)日：1997-03-25
申请号：US556425
申请日：1995-11-09
CPC分类号： C08F214/06 , C08F14/06
摘要： In preparing a matte vinyl chloride polymer by suspension polymerizing a monomeric charge comprising monomeric vinyl chloride in an aqueous medium, polymerization is started in the presence of 0.05-0.25 part by weight of diallyl phthalate per 100 parts by weight of the monomeric charge, and polymerization is continued while adding 0.01-0.15 part by weight of 1,6-hexanediol di(meth)acrylate per 100 parts by weight of the monomeric charge when the rate of polymerization is in the range of 20-60%. There is produced a matte vinyl chloride-diallyl phthalate copolymer having a tetrahydrofuran-insoluble gel content of 0.5-2.5% by weight in a reproducible manner. A composition prepared by blending the copolymer with a plasticizer has minimized fish-eyes and improved matting effect.
摘要翻译： 在通过将包含单体氯乙烯的单体电荷在水性介质中悬浮聚合制备无光氯乙烯聚合物时，每100重量份单体电荷在0.05-0.25重量份邻苯二甲酸二烯丙酯存在下开始聚合，并且聚合 继续加入0.01-0.15重量份的1,6-己二醇二（甲基）丙烯酸酯/ 100重量份的单体电荷，当聚合速率在20-60％的范围内时。 制备了可再现的方式，其四氢呋喃不溶性凝胶含量为0.5-2.5重量％的无光泽氯乙烯 - 二烯丙基邻苯二甲酸酯共聚物。 通过将共聚物与增塑剂共混制备的组合物使鱼眼减少并且改善了消光效果。
-
15.发明授权Polymer scale preventive agent, polymerization vessel effective in preventing polymer scale deposition, and process of producing polymer using said vessel 失效聚合物防垢剂，有效防止聚合物垢沉积的聚合容器，以及使用所述容器制备聚合物的方法
公开(公告)号：US5364466A
公开(公告)日：1994-11-15
申请号：US865265
申请日：1992-04-08
CPC分类号： C08F2/004
摘要： A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising (A) a nitrogen-containing organic compound having at least five continuous conjugated .pi. bonds, (B) an anionic organic compound having at least one group selected from the group consisting of the sulfonic acid group and the carboxyl group and having at least five continuous conjugated .pi. bonds, and (C) a water-soluble basic polysaccharide. The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented not only in the liquid phase area but also in the vicinity of the interface between the gas and liquid phases. Products formed from polymer obtained have very few fish eyes.
摘要翻译： 一种用于聚合具有烯键式不饱和双键的单体的聚合物防垢剂，其包含（A）具有至少五个连续共轭π键的含氮有机化合物，（B）具有至少一个基团的阴离子有机化合物 选自由磺酸基和羧基组成的组，并且具有至少五个连续的共轭π键，和（C）水溶性碱性多糖。 该试剂用于在聚合容器的内壁等上形成涂层。 可以有效地防止聚合物垢的沉积，不仅在液相区域中，而且在气相和液相之间的界面附近。 由获得的聚合物形成的产品鱼眼非常少。
-
16.发明授权Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel 失效聚合物垢防止剂，用于防止聚合物垢沉积的聚合容器，以及使用所述容器生产聚合物的方法
公开(公告)号：US5264505A
公开(公告)日：1993-11-23
申请号：US875832
申请日：1992-04-30
CPC分类号： C08F2/004
摘要： A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising a pyrogallol-acetone resin. The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness is obtained.
摘要翻译： 用于聚合具有烯键式不饱和双键的单体的聚合物防垢剂，其包含连苯三酚 - 丙酮树脂。 该试剂用于在聚合容器的内壁等上形成涂层。 可以有效地防止聚合物垢的沉积，获得高白度的聚合物。
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.02 秒)
