Colloidally stable dispersions
    1.
    发明授权
    Colloidally stable dispersions 失效
    胶体稳定的分散体

    公开(公告)号:US3965032A

    公开(公告)日:1976-06-22

    申请号:US351713

    申请日:1973-04-16

    摘要: This invention is directed to dispersions containing stabilizing amounts of certain substantially linear interpolymeric interfacially spreading polyelectrolytes composed of a mixture of nonionic hydrophobic units and ionic hydrophilic units where the nonionic units are randomly distributed in the backbone of the polyelectrolyte and where the polyelectrolyte is adsorbed at the surface of the disperse phase of the dispersion in a substantially flat configuration. The polyelectrolytes are further characterized by having an adsorption constant equal to or greater than 1 at the point where the surface of the disperse phase is saturated with the polyelectrolyte, the absorption constant being determined as the amount of polyelectrolyte in the disperse phase divided by the amount of polyelectrolyte in the continuous phase. These stabilized dispersions are particularly useful as coating compositions and for use in the preparation of microspheres and seed latexes.

    摘要翻译: 本发明涉及含有稳定量的由非离子疏水单元和离子亲水单元的混合物组成的某些基本上直链的互聚物界面扩散聚电解质的分散体,其中非离子单元随机分布在聚电解质的主链中,并且其中聚电解质被吸附在 分散体的分散相的表面呈基本平坦的构型。 聚电解质进一步的特征在于在分散相的表面被聚电解质饱和的点处具有等于或大于1的吸附常数,吸收常数被确定为分散相中聚电解质的量除以量 的聚电解质在连续相中。 这些稳定的分散体特别可用作涂料组合物并用于制备微球和种子胶乳。

    Cathodic electrodeposition of polymers onto a conductive surface
    2.
    发明授权
    Cathodic electrodeposition of polymers onto a conductive surface 失效
    将聚合物阴极电沉积到导电表面上

    公开(公告)号:US4225407A

    公开(公告)日:1980-09-30

    申请号:US26720

    申请日:1979-04-04

    CPC分类号: C25D13/22 C09D5/44

    摘要: A method for electrodeposition of an organic material on an electroconductive surface comprising placing the electroconductive surface to be coated in contact with an aqueous dispersion containing a water-insoluble, essentially electrically nonconductive, film-forming, organic polymer as cation-active particles wherein the cation-activity is provided at least predominantly by reducible nitrogen-containing cations and passing an electric current from an electrode through the latex to the electroconductive surface in such a direction that the electroconductive surface is negatively charged, i.e., becomes a cathode in an electrophoretic cell. By use of alternating current, both electrodes become coated with an adherent coating of polymer.

    摘要翻译: 一种用于在导电表面上电沉积有机材料的方法,包括将要涂覆的导电表面放置在与包含不溶于水的基本上不导电的成膜有机聚合物的水性分散体接触,所述有机材料作为阳离子活性颗粒,其中所述阳离子 至少主要是通过可还原的含氮阳离子提供活性,并使电流从电极通过胶乳到导电表面,使得导电表面带负电,即在电泳池中成为阴极。 通过使用交流电,两个电极都涂覆有聚合物的粘附涂层。

    Novel isothiouronium salts
    3.
    发明授权
    Novel isothiouronium salts 失效
    新型异硫脲盐

    公开(公告)号:US4214096A

    公开(公告)日:1980-07-22

    申请号:US48954

    申请日:1979-06-15

    摘要: Novel isothiouronium salts are herein described which correspond to the formula ##STR1## wherein R and R' are each independently hydrocarbyl or inertly-substituted hydrocarbyl of at least 4 carbon atoms; R.sub.1 -R.sub.4 are each independently alkyl or hydroxyalkyl of 1 to 4 carbon atoms, or R.sub.1 and R.sub.3 are joined to form a 5- or 6-membered heterocyclic ring; n is 0 or 1; and A.sup..crclbar. is an inert neutralizing anion. The isothiouronium salts are surprisingly effective dispersing agents and are used in forming electrodepositable latexes.

    摘要翻译: 本文描述了新的异硫脲鎓盐,其对应于下式:其中R和R'各自独立地为至少4个碳原子的烃基或惰性取代的烃基; R 1 -R 4各自独立地为具有1至4个碳原子的烷基或羟烷基,或者R 1和R 3连接形成5-或6-元杂环; n为0或1; 而A( - )是惰性中和阴离子。 异硫脲盐是惊人的有效的分散剂,并用于形成可电沉积胶乳。

    Cationic structured-particle latexes
    4.
    发明授权
    Cationic structured-particle latexes 失效
    阳离子结构化颗粒

    公开(公告)号:US4056501A

    公开(公告)日:1977-11-01

    申请号:US569723

    申请日:1975-04-21

    IPC分类号: C08C1/06 C08F291/00 C08L9/08

    CPC分类号: C08C1/06 C08F291/00

    摘要: Structured-particle latexes are prepared from nonionic or slightly cationic latexes, either preformed or polymerized in situ, by emulsion polymerizing monomeric materials which include an ethylenically unsaturated, activated-halogen monomer such as vinylbenzyl chloride in the absence of a sufficient amount of a surfactant to initiate new particles whereby the activated-halogen monomer is copolymerized on the surface of the existing particles which are dispersed in an aqueous media. The resulting structured-particle latex may then be reacted with a nucleophile such as dimethyl sulfide or trimethyl amine to form a latex having stabilizing "onium" groups such as sulfonium groups or quaternary ammonium groups chemically bound at or near the surface of the polymer particles which are dispersed in aqueous media. The cationic latexes are suitable for coatings and organic pigments.

    Process for electrodeposition of cross-linked polymer coatings
    5.
    发明授权
    Process for electrodeposition of cross-linked polymer coatings 失效
    电沉积交联聚合物涂层的方法

    公开(公告)号:US4017372A

    公开(公告)日:1977-04-12

    申请号:US569722

    申请日:1975-04-21

    IPC分类号: C09D5/44 C25D13/06

    CPC分类号: C09D5/4488

    摘要: A method for electrodeposition of an adherent, water-resistant, cross-linked, organic coating on an electroconductive surface comprising (a) placing the elecroconductive surface to be coated in contact with an aqueous dispersion containing a water-insoluble, essentially electrically non-conductive, film-forming, organic polymer as cation-active, structured particles wherein a substantial portion of the cation-activity is provided by pH independent cationic groups which are chemically bound to the polymer at or near the particle surface and (b) passing an electric current from an electrode through the latex to the electroconductive surface in such a direction that the electroconductive surface is negatively charged, i.e., becomes a cathode in an electrophoretic cell. By use of alternating current both electrodes become coated with an adherent coating of polymer.

    摘要翻译: 一种用于在导电表面上电粘附,防水,交联的有机涂层的方法,包括(a)将待涂覆的导电表面与含有水不溶性,基本上不导电的水分散体接触 成膜,有机聚合物作为阳离子活性的结构化颗粒,其中大部分阳离子活性由pH独立的阳离子基团提供,所述阳离子基团与颗粒表面处或附近的聚合物化学结合,和(b)通过电 电流从电极通过胶乳到导电表面,使得导电表面带负电,即在电泳池中成为阴极。 通过使用交流电,两个电极都涂覆有聚合物的粘附涂层。

    Isothiouronium stabilized latexes
    6.
    发明授权
    Isothiouronium stabilized latexes 失效
    异硫脲稳定乳胶

    公开(公告)号:US3998776A

    公开(公告)日:1976-12-21

    申请号:US566865

    申请日:1975-04-10

    IPC分类号: C09D5/44 C08L31/00

    CPC分类号: C09D5/4407

    摘要: An aqueous dispersion containing a water-insoluble, essentially electrically non-conductive, organic polymer as cation-active particles wherein a substantial portion of the cation-activity is provided by isothiouronium cations may be obtained by various methods including emulsion polymerization of hydrophobic monomers using an isothiouronium surfactant or by emulsion copolymerization of a monomer containing isothiouronium groups with hydrophobic monomers.

    摘要翻译: 含有水不溶性,基本上不导电的有机聚合物作为阳离子活性颗粒,其中阳离子活性的相当大部分由异硫脲阳离子提供可以通过各种方法获得,包括使用疏水性单体的乳液聚合 异硫脲表面活性剂或通过含有异硫脲基团的单体与疏水性单体的乳液共聚合。

    Structured-particle latexes
    7.
    发明授权
    Structured-particle latexes 失效
    结构粒子胶乳

    公开(公告)号:US4017442A

    公开(公告)日:1977-04-12

    申请号:US569724

    申请日:1975-04-21

    IPC分类号: C08C1/06 C08F291/00 C08L33/08

    CPC分类号: C08C1/06 C08F291/00

    摘要: Structured-particle latexes are prepared from nonionic or slightly cationic latexes, either preformed or polymerized in situ, by emulsion polymerizing monomeric materials which include an ethylenically unsaturated, activated-halogen monomer such as vinylbenzyl chloride in the absence of a sufficient amount of a surfactant to initiate new particles whereby the activated-halogen monomer is copolymerized on the surface of the existing particles which are dispersed in aqueous media. To the resulting structured particle latex may then be added conventional cationic surfactants to provide greater stability. The cationic latexes are suitable for coatings.

    摘要翻译: 通过在不存在足够量的表面活性剂的情况下通过乳液聚合包括烯属不饱和的活性卤素单体如乙烯基苄基氯的单体材料,由非离子或微阳离子胶乳制备结构粒子胶乳, 引发新的颗粒,由此活性卤素单体在分散在水性介质中的现有颗粒的表面上共聚。 然后可以向得到的结构化颗粒胶乳中加入常规阳离子表面活性剂以提供更大的稳定性。 阳离子胶乳适用于涂料。

    Cationic deposition of polymers onto a conductive surface
    8.
    发明授权
    Cationic deposition of polymers onto a conductive surface 失效
    将聚合物阳离子沉积到导电表面上

    公开(公告)号:US4225406A

    公开(公告)日:1980-09-30

    申请号:US587472

    申请日:1975-06-16

    IPC分类号: C09D5/44 C25D13/06

    CPC分类号: C09D5/4488

    摘要: A method for electrodeposition of an organic material on an electroconductive surface comprising placing the electroconductive surface to be coated in contact with an aqueous dispersion containing a water-insoluble, essentially electrically non-conductive, film-forming, organic polymer as cation-active particles wherein the cation-activity is provided at least predominantly by sulfonium cations and passing an electric current from an electrode through the latex to the electroconductive surface in such a direction that the electroconductive surface is negatively charged, i.e., becomes a cathode in an electrophoretic cell. By use of alternating current both electrodes become coated with the polymer.

    摘要翻译: 一种用于在导电表面上电沉积有机材料的方法,包括将待涂覆的导电表面放置在与包含不溶于水的基本上不导电的成膜有机聚合物的水性分散体接触,所述有机材料作为阳离子活性颗粒,其中 阳离子活性至少主要由锍阳离子提供,并将电流从电极通过胶乳传递到导电表面,使得导电表面带负电,即在电泳池中成为阴极。 通过使用交流电,两个电极都被聚合物涂覆。

    Electrodeposition of sulfoxonium stabilized colloids
    9.
    发明授权
    Electrodeposition of sulfoxonium stabilized colloids 失效
    氧化铌稳定胶体的电沉积

    公开(公告)号:US3994792A

    公开(公告)日:1976-11-30

    申请号:US554382

    申请日:1975-03-03

    IPC分类号: C09D5/44 C25D13/06

    CPC分类号: C09D5/4407 C09D5/4403

    摘要: A method for electrodeposition of an organic material on an electroconductive surface comprising placing the electroconductive surface to be coated in contact with an aqueous dispersion containing a water-insoluble, essentially electrically non-conductive, film-forming, organic polymer as cation-active particles wherein a substantial portion of the cation-activity is provided by sulfoxonium cations and passing an electric current from an electrode through the latex to the electroconductive surface in such a direction that the electroconductive surface is negatively charged, i.e., becomes a cathode in an electrophoretic cell. By use of alternating current both electrodes become coated with an adherent coating of polymer.

    摘要翻译: 一种用于在导电表面上电沉积有机材料的方法,包括将待涂覆的导电表面放置在与包含不溶于水的基本上不导电的成膜有机聚合物的水性分散体接触,所述有机材料作为阳离子活性颗粒,其中 阳离子活性的很大一部分由氧化锍阳离子提供,并将电流从电极通过胶乳传递到导电表面,使得导电表面带负电,即在电泳池中成为阴极。 通过使用交流电,两个电极都涂覆有聚合物的粘附涂层。