Polymer scale preventive agent, polymerization vessel for preventing
polymer scale deposition, and process of producing polymer using said
vessel
    61.
    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:US5401815A

    公开(公告)日:1995-03-28

    申请号:US190214

    申请日:1994-02-01

    IPC分类号: C08F2/00 C08K5/47 C09D139/06

    摘要: A process and coated vessel for use in the prevention of scale adhesion during the polymerization of a monomer having an ethylenic double bond, the two part coating comprising an N-substituted leucophenothiazine dye having the general formula (I): wherein Z is a carbonyl group or a sulfonyl group, R.sup.1, R.sup.2 and R.sup.3 are a hydrogen atom, alkyl group, an amino group, etc., used in conjunction with a vinyl pyrrolidone polymer. The two part coating is used 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: 一种用于防止在具有烯属双键的单体的聚合过程中的水垢附着的方法和涂覆的容器,所述两部分涂层包含具有通式(I)的N-取代的亮氨基噻嗪染料:磺酰基,R 1,R 2 和R3是与乙烯基吡咯烷酮聚合物结合使用的氢原子,烷基,氨基等。 两部分涂层用于聚合容器的内壁等。 可以有效地防止聚合物垢的沉积,获得高白度的聚合物。

    Method of preventing polymer scale deposition and polymer scale
preventive agent used therefor
    62.
    发明授权
    Method of preventing polymer scale deposition and polymer scale preventive agent used therefor 失效
    防止聚合物定型沉积的方法及其使用的聚合物规模预防剂

    公开(公告)号:US5153281A

    公开(公告)日:1992-10-06

    申请号:US705554

    申请日:1991-05-24

    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 water-soluble polysaccharide; and a polymer scale preventive agent comprising polysaccharide. By use of the method or agent, deposition of polymer scale can be effectively prevented; in addition, polymers with a high whiteness can be prepared. Moreover, the scale preventive agent used has no poisonousness or the like and is highly safe.

    Method for the polymerization of vinyl chloride
    63.
    发明授权
    Method for the polymerization of vinyl chloride 失效
    氯乙烯聚合方法

    公开(公告)号:US4105838A

    公开(公告)日:1978-08-08

    申请号:US626328

    申请日:1975-10-28

    IPC分类号: C08F14/00 C08F2/00 C08F14/06

    CPC分类号: C08F2/004

    摘要: Vinyl chloride monomer or a monomeric mixture composed mainly of vinyl chloride is polymerized in a polymerization vessel having its inner walls and the surfaces of an agitator and other equipment attached thereto coming into contact with the monomer or monomers coated with a metal complex of a polar organic compound and/or an organic dye. This method of polymerization serves to greatly reduce the deposition of polymer scale on those surfaces and produce high quality polymer.

    摘要翻译: 氯乙烯单体或主要由氯乙烯组成的单体混合物在聚合容器中聚合,其聚合容器的内壁和搅拌器的表面以及附着于其上的其它设备与涂覆有极性有机物金属络合物的单体或单体接触 化合物和/或有机染料。 这种聚合方法大大减少了聚合物垢在这些表面上的沉积并产生高质量的聚合物。

    Method for suspension-polymerizing vinyl chloride
    64.
    发明授权
    Method for suspension-polymerizing vinyl chloride 失效
    悬浮聚合氯乙烯的方法

    公开(公告)号:US3945958A

    公开(公告)日:1976-03-23

    申请号:US475052

    申请日:1974-05-31

    IPC分类号: C08F14/06 C08F2/20

    CPC分类号: C08F14/06

    摘要: When vinyl chloride or a mixture of monomers containing vinyl chloride as its main component is subjected to suspension-polymerization, in the presence of a polymerization initiator, employing as a suspending agent an aqueous medium consisting of two kinds of water-soluble cellulose ethers, the 2% aqueous solution of one of which has a viscosity of at most 100 cps at 20.degree.C, and that of the other has a viscosity of at least 400 cps at 20.degree.C, the product obtained will be a porous polymer superior not only in uniformity of particle size, and absorptivity of plasticizers and liquid heat-stabilizers but also in processability.

    摘要翻译: 当氯乙烯或含有氯乙烯作为其主要成分的单体的混合物进行悬浮聚合时,在聚合引发剂的存在下,使用由两种水溶性纤维素醚组成的水性介质作为悬浮剂, 其中之一的2%水溶液在20℃下的粘度至多为100cps,另一种的水溶液在20℃时的粘度至少为400cps,所得产品将不仅优于多孔聚合物 颗粒尺寸的均匀性和增塑剂和液体热稳定剂的吸收性,而且在加工性方面。

    Process for producing a polymer by polymerization of a monomer having an ethylenic double bond
    65.
    发明授权
    Process for producing a polymer by polymerization of a monomer having an ethylenic double bond 有权
    通过具有烯属双键的单体的聚合制备聚合物的方法

    公开(公告)号:US06335403B1

    公开(公告)日:2002-01-01

    申请号:US09599879

    申请日:2000-06-23

    IPC分类号: C08F234

    CPC分类号: C08F2/004

    摘要: A process for producing a polymer by polymerizing in a polymerization vessel a monomer having an ethylenic double bond is provided. In this process, the polymerization vessel has a polymer scale preventive coating film on its inner wall surfaces and other surfaces with which the monomer comes into contact during polymerization. The coating film is formed by coating a first coating liquid containing a compound selected from the group consisting of an aromatic compound having 5 or more conjugated bonds and a heterocyclic compound having 5 or more conjugated bonds and a second coating liquid containing at least one hydrophilic compound selected from the group consisting of a water-soluble polymeric compound, an inorganic colloid, an inorganic salt and an acid; the first coating liquid and the second coating liquid being simultaneously coated by means of steam as a carrier. This process can shorten the time for forming coating films of scale preventive agents to improve productivity, can improve the effect of preventing scales, can make colored particles less mix into polymer products obtained by this process, can lessen fish eyes and initial discoloring of formed products and can improve the quality of polymeric products and their formed or molded products.

    摘要翻译: 提供了通过在聚合容器中聚合具有烯属双键的单体制备聚合物的方法。 在该方法中,聚合容器在其内壁表面和单体在聚合期间与其接触的其它表面具有聚合物防垢涂膜。 通过涂布含有选自具有5个或更多个共轭的芳族化合物的化合物的第一涂布液形成涂膜,该化合物与“CUSTOM-CHARACTER FILE =”US06335403-20020101-P00001.TIF“ID =”CUSTOM-CHARACTER- 键和具有5个或更多个共轭的杂环化合物和含有至少一种亲水化合物的第二涂布液 选自水溶性高分子化合物,无机胶体,无机盐和酸组成的组; 第一涂布液和第二涂布液同时通过蒸汽作为载体涂布。 该方法可以缩短形成防垢剂涂膜的时间,以提高生产率,可以提高防垢效果,可使着色颗粒较少混合成通过该方法获得的聚合物产品,可以减少鱼眼和形成产品的初步褪色 并且可以提高聚合物产品及其成型或成型品的质量。

    Process for producing a polymer by polymerization of a monomer having an
ethylenic double bond
    66.
    发明授权
    Process for producing a polymer by polymerization of a monomer having an ethylenic double bond 有权
    通过具有烯属双键的单体的聚合制备聚合物的方法

    公开(公告)号:US6037426A

    公开(公告)日:2000-03-14

    申请号:US244414

    申请日:1999-02-04

    摘要: An improved process for producing a polymer by polymerizing a monomer having an ethylenic double bond in a polymerization vessel having a polymer scale preventive coating film on its inner wall surfaces, etc. is provided. The coating film is formed by coating a first coating liquid containing a compound selected from the group consisting of an aromatic compound having 5 or more conjugated .pi. bonds and a heterocyclic compound having 5 or more conjugated .pi. bonds, and then coating a second coating liquid on the first layer. The first and second coating liquids are applied by means of steam as a carrier. The second layer has a surface having a contact angle to water of less than 60.degree. after its surface has been brought into contact with a solution of mixture of water and a vinyl chloride monomer in a weight ratio of 1:1, at 50.degree. C. for 1 hour. This process can shorten the time for forming the coating film to improve productivity, can improve the effect of preventing adhesion of polymer scale, can make colored particles less mix into polymer products obtained by this process, can lessen fish eyes and initial discoloring of formed products and can improve the quality of polymeric products and their formed or molded products.

    摘要翻译: 提供了一种通过在其内壁表面上具有聚合物防垢涂膜的聚合容器中聚合具有烯属双键的单体来制备聚合物的改进方法。 通过涂布含有选自具有5个或更多个共轭π键的芳族化合物和具有5个或更多个共轭π键的杂环化合物的化合物的第一涂布液,然后将第二涂布液涂布在 第一层。 第一和第二涂布液通过蒸汽作为载体施加。 第二层的表面与水和氯乙烯单体的混合物与重量比为1:1的溶液在50℃下接触时,具有与水接触角小于60°的表面 1小时。 该方法可以缩短形成涂膜的时间,以提高生产率,可以提高防止聚合物垢粘附的效果,可以使着色颗粒较少混合成通过该方法获得的聚合物产品,可以减少鱼眼和成型产品的初步变色 并且可以提高聚合物产品及其成型或成型品的质量。

    Polymerization with scale preventive agent derived from a condensate of
an azo and/or azoxy compound and a quinone compound
    67.
    发明授权
    Polymerization with scale preventive agent derived from a condensate of an azo and/or azoxy compound and a quinone compound 失效
    用来自偶氮和/或氧化偶氮化合物和醌化合物的缩合物的防垢剂聚合

    公开(公告)号:US5721324A

    公开(公告)日:1998-02-24

    申请号:US554663

    申请日:1995-11-08

    IPC分类号: C08F2/00 C08F2/16

    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 an alkaline liquid containing a condensation product of: (A) at least one compound selected from the group consisting of azo compounds having at least two amino groups and azoxy compounds having at least two amino groups, and (B) a quirtone compound, is disclosed. Also disclosed is a process for producing a polymer, which comprises polymerizing the monomer in a polymerization vessel having a coating on its inner wall, whereby deposition of polymer scale is prevented, the coating having been formed by applying the scale preventive agent and drying the applied agent. According to the process, polymer scale deposition can be effectively prevented, not only on the areas located in the liquid-phase region but also on the areas around the gas-liquid interface in the vessel, so that the need to remove polymer scale every run of polymerization is eliminated and productivity is thereby enhanced. Besides, the process yields a polymer that shows few fish eyes and good whiteness when formed into sheets or the like.

    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,其包含含有以下物质的缩合产物的碱性液体:(A)至少一种选自具有至少两个氨基的偶氮化合物的化合物 和具有至少两个氨基的氧化偶氮化合物,和(B)奎洛酮化合物。 还公开了一种生产聚合物的方法,其包括在其内壁上具有涂层的聚合容器中聚合单体,由此防止聚合物垢的沉积,通过施加防垢剂并干燥所施加的涂层 代理商 根据该方法,可以有效地防止聚合物垢沉积,不仅在位于液相区域的区域上,而且还可以在容器中气 - 液界面周围的区域上,从而每次运行都需要去除聚合物垢 的聚合被消除,从而提高生产率。 此外,该方法产生当形成片材等时显示出很少的鱼眼和良好的白度的聚合物。

    Polymer scale preventive agent containing a condensation product of a
hydroxynaphthalene
    68.
    发明授权
    Polymer scale preventive agent containing a condensation product of a hydroxynaphthalene 失效
    含有羟基萘的缩合物的聚合物防垢剂

    公开(公告)号:US5576370A

    公开(公告)日:1996-11-19

    申请号:US321467

    申请日:1994-10-11

    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 an alkaline solution containing (A) a condensation product of (A-1) a hydroxynaphthalene compound and (A-2) an aldehyde compound, and (B) an inorganic colloid. This agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Such a vessel is effective in preventing polymer scale deposition, not only in the liquid-phase region but also in the vicinity of the interface between the gas and liquid phases in the vessel, and useful in producing a polymer that shows very few fish eyes and good whiteness when formed into sheets or the like.

    摘要翻译: 包含含有(A)(A-1)羟基萘化合物和(A-2)醛化合物的缩合物的碱性溶液的含有乙烯性不饱和双键的单体聚合的聚合物防垢剂,以及 (B)无机胶体。 该试剂用于在聚合容器的内壁等上形成涂层。 这样的容器不仅在液相区域中,而且在容器中的气相和液相之间的界面附近都有效地防止聚合物垢沉积,并且可用于制备显示非常少的鱼眼的聚合物, 当形成片材等时,白度好。

    Polymer scale preventive process using a coating of chitosan salt and
phenothiazine
    70.
    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。