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    • 4. 发明授权
    • Process for preparing magnetic polymer particles
    • 制备磁性聚合物颗粒的方法
    • US4774265A
    • 1988-09-27
    • US890221
    • 1986-07-29
    • John UgelstadTurid EllingsenArvid BergeOskar B. Helgee
    • John UgelstadTurid EllingsenArvid BergeOskar B. Helgee
    • H01G2/00B03C1/01G01N33/543H01F1/10H01F1/11H01F1/42H01G4/38H01G9/08H01L31/02H01L31/04H01L31/042H01M2/20H01M2/22H01M2/26H01M2/30H01M6/42H02N11/00C08J9/22C08K3/10
    • H01F1/42B03C1/01G01N33/5434H01F1/111G01N2446/10Y10S428/90Y10T428/2998
    • Magnetic polymer particles prepared by treating compact or porous polymer particles with a solution of iron salts and, if desired, salts of other metals which are capable of forming magnetic ferrites, in which the solution swells or penetrates into the particles. Iron hydroxide and possible other metal hydroxides are precipitated, for instance by raising the pH value, and the particles are optionally heated. In the iron salts used the ratio between di- and trivalent iron is suitably such that magnetic iron oxide is formed directly. It is also possible to use oxidizing or reducing groups or additives to obtain such a ratio. When other metal salts are used in addition to iron salts, the operation is carried out in the same manner. For instance, when Mn.sup.++, Co.sup.++ or Ni.sup.++ salts are used in addition to Fe.sup.++ salts, the divalent iron is oxidized to trivalent so that magnetic ferrite is obtained. The polymer particles which are treated with metal salts preferably contain metal-binding groups. Such groups are incorporated for instance by using monomers which contain said groups for the preparation of the polymer particles, or the groups are incorporated in the polymer particles prepared.The magnetic polymer particles are spherical and have a uniform concentration of magnetic material. They may be used for medical, diagnostic or other purposes.
    • 通过用铁盐溶液处理紧密或多孔的聚合物颗粒制备的磁性聚合物颗粒,以及如果需要,能够形成磁性铁氧体的其它金属的盐,其中溶液溶胀或渗入颗粒中。 例如通过提高pH值来沉淀氢氧化铁和可能的其它金属氢氧化物,任选地加热颗粒。 在使用的铁盐中,二价和三价铁之间的比例适当地使得直接形成磁性氧化铁。 也可以使用氧化或还原基团或添加剂来获得这种比例。 除了铁盐之外,当使用其它金属盐时,以相同的方式进行操作。 例如,除了Fe ++盐之外,当使用Mn ++,Co ++或Ni ++盐时,二价铁被氧化成三价,从而得到磁性铁氧体。 用金属盐处理的聚合物颗粒优选含有金属结合基团。 这样的基团例如通过使用含有所述基团的单体来制备聚合物颗粒,或将这些基团引入所制备的聚合物颗粒中。 磁性聚合物颗粒是球形的并且具有均匀的磁性材料浓度。 它们可用于医疗,诊断或其他目的。
    • 5. 发明授权
    • Magnetic polymer particles and process for the preparation thereof
    • 磁性聚合物颗粒及其制备方法
    • US4654267A
    • 1987-03-31
    • US571878
    • 1983-12-23
    • John UgelstadTurid EllingsenArvid BergeOskar B. Helgee
    • John UgelstadTurid EllingsenArvid BergeOskar B. Helgee
    • H01G2/00B03C1/01G01N33/543H01F1/10H01F1/11H01F1/42H01G4/38H01G9/08H01L31/02H01L31/04H01L31/042H01M2/20H01M2/22H01M2/26H01M2/30H01M6/42H02N11/00H01F1/20B32B15/08
    • H01F1/42B03C1/01G01N33/5434H01F1/111G01N2446/10Y10S428/90Y10T428/2998
    • Magnetic polymer particles prepared by treating compact or porous polymer particles with a solution of iron salts and, if desired, salts of other metals which are capable of forming magnetic ferrites, in which the solution swells or penetrates into the particles. Iron hydroxide and other metal hydroxides, if employed, are precipitated, e.g. by raising the pH value, and the particles are optionally heated. In the iron salts used, the ratio between di- and trivalent iron is suitably such that magnetic iron oxide is formed directly. It is also possible to use oxidizing or reducing groups or additives to obtain such a ratio. When other metal salts are used in addition to iron salts, the operation is carried out in the same manner. For instance, when Mn.sup.++, Co.sup.++ or Ni.sup.++ salts are used in addition to Fe.sup.++ salts, the divalent iron is oxidized to trivalent so that magnetic ferrite is obtained. The polymer particles which are treated with metal salts preferably contain metal-binding groups. Such groups are incorporated e.g. by using monomers which contain said groups for the preparation of the polymer particles, or the groups are incorporated in the polymer particles prepared.The magnetic polymer particles are spherical and have a uniform concentration of magnetic material. They may be used for medical, diagnostic or other purposes.
    • PCT No.PCT / NO83 / 00014 Sec。 371日期1983年12月23日 102(e)1983年12月23日日期PCT提交1983年4月22日PCT公布。 公开号WO83 / 03920 日期:1983年11月10日。磁性聚合物颗粒通过用铁盐溶液处理紧密或多孔的聚合物颗粒,并且如果需要,可以形成能够形成磁性铁氧体的其它金属的盐,其中溶液溶胀或渗入 粒子。 氢氧化铁和其它金属氢氧化物(如果使用)沉淀,如 通过提高pH值,并且任选地加热颗粒。 在所用的铁盐中,二价和三价铁之间的比例适宜地直接形成磁性氧化铁。 也可以使用氧化或还原基团或添加剂来获得这种比例。 除了铁盐之外,当使用其它金属盐时,以相同的方式进行操作。 例如,除了Fe ++盐之外,当使用Mn ++,Co ++或Ni ++盐时,二价铁被氧化成三价,从而得到磁性铁氧体。 用金属盐处理的聚合物颗粒优选含有金属结合基团。 这样的组合例如 通过使用含有所述基团的单体制备聚合物颗粒,或将这些基团引入制备的聚合物颗粒中。 磁性聚合物颗粒是球形的并且具有均匀的磁性材料浓度。 它们可用于医疗,诊断或其他目的。
    • 6. 发明授权
    • Process for the preparation of aqueous dispersions of organic material
and possible further conversion to a polymer dispersion when the
organic material is a polymerizable monomer
    • 用于制备有机材料的水性分散体的方法,并且当有机材料是可聚合单体时可能进一步转化为聚合物分散体
    • US4530956A
    • 1985-07-23
    • US509464
    • 1983-06-07
    • John UgelstadArvid Berge
    • John UgelstadArvid Berge
    • C08F2/00C08F2/16C08F2/18C08F2/22C08F257/02C08F291/00C08J3/03
    • C08F257/02C08F2/22C08F291/00
    • Process for preparing aqueous dispersions of a somewhat water-soluble low-molecular organic material, in which swellable particles prepared in a first step are swelled with the organic material in the second step. When the organic material is a polymerizable monomer the dispersion prepared is converted to a polymer dispersion. In the first step swellable oligomer or oligomer-polymer particles are prepared by(a) dispersing an aqueous mixture containing an oil-soluble initiator or a solution of an oil soluble initiator in an organic solvent, and then swelling the dispersed initiator-containing droplets with monomer and effecting polymerization, or(b) swelling polymer particles in aqueous dispersion with vinyl monomer and an oil-soluble initiator and effecting polymerization, the ratio between initiator and monomer used being so high that in the polymerization an oligomer having a degree of polymerization of 5-200 is formed. In the second step, optionally after dilution with water and addition of emulsifier, the organic material is added which has a solubility in water of >10, preferably >100 times higher than that of the oligomer and which diffuses through the aqueous phase and swells the oligomer or oligomer-polymer particles in a ratio by volume of >20:1. When the organic material is a polymerizable monomer, initiator is also added in the second step, and polymerization is effected.
    • PCT No.PCT / NO82 / 00052 Sec。 371日期:1983年6月7日 102(e)日期1983年6月7日PCT提交1982年10月19日PCT公布。 公开号WO83 / 01453 日期:1983年4月28日。用于制备稍微水溶性低分子有机材料的水性分散体的方法,其中第一步中制备的可溶胀颗粒在第二步中用有机材料溶胀。 当有机材料是可聚合单体时,将制备的分散体转化为聚合物分散体。 在第一步骤中,通过以下步骤制备可溶胀低聚物或低聚物聚合物颗粒:(a)将含有油溶性引发剂或油溶性引发剂的溶液的含水混合物分散在有机溶剂中,然后用分散的含引发剂的液滴 单体和有效聚合反应,或(b)用乙烯基单体和油溶性引发剂溶解含水分散体中的聚合物颗粒并进行聚合,使用的引发剂和单体之间的比例如此之高,使得在聚合反应中,具有聚合度 形成5-200。 在第二步中,任选地在用水稀释并加入乳化剂之后,添加有机材料,其在水中的溶解度>低于低聚物的> 10倍,优选> 100倍,并且扩散通过水相并溶胀 低聚物或低聚物聚合物颗粒,其体积比> 20:1。 当有机材料是可聚合单体时,在第二步中也加入引发剂,进行聚合。
    • 8. 发明授权
    • Polymer emulsification process
    • 聚合物乳化工艺
    • US4177177A
    • 1979-12-04
    • US873067
    • 1978-01-27
    • John W. VanderhoffMohamed S. El-AasserJohn Ugelstad
    • John W. VanderhoffMohamed S. El-AasserJohn Ugelstad
    • C08J3/03C08L83/04
    • C08J3/03
    • A polymer emulsification process comprising intimately dispersing a liquified water insoluble polymer phase in an aqueous liquid medium phase containing at least one nonionic, anionic or cationic oil-in-water functioning emulsifying agent, in the presence of a compound selected from the group consisting of those hydrocarbons and hydrocarbyl alcohols, ethers, alcohol esters, amines, halides and carboxylic acid esters which are inert, non-volatile, water insoluble, liquid and contain a terminal aliphatic hydrocarbyl group of at least about 8 carbon atoms, and mixtures thereof, and subjecting the resulting crude emulsion to the action of comminuting forces sufficient to enable the production of an aqueous emulsion containing polymer particles averaging less than about 0.5 .mu. in size.
    • 一种聚合物乳化方法,其包括在液体水不溶性聚合物相包含至少一种非离子,阴离子或阳离子水包油功能的乳化剂的水性液体介质相中,在选自下组的化合物 烃和烃基醇,醚,醇酯,胺,卤化物和羧酸酯,它们是惰性的,不挥发的,水不溶的,液体的并含有至少约8个碳原子的末端脂族烃基,以及它们的混合物, 所得到的粗乳液至粉碎力的作用足够使得能够生产含有平均小于约0.5μm尺寸的聚合物颗粒的水性乳液。
    • 10. 发明授权
    • Process for the preparation of polymer latex
    • 聚合物胶乳的制备方法
    • US4563510A
    • 1986-01-07
    • US573605
    • 1984-01-25
    • John Ugelstad
    • John Ugelstad
    • C08F2/00C08F2/18C08F2/22C08F2/24
    • C08F2/24
    • The invention provides a process for the preparation of polymer latex by emulsification of an initiator or initiator mixture and optionally a solvent in the presence of emulsifier in water in a first step and adding a monomer and polymerizing in a second step. The process is carried out by emulsifying an essentially water-insoluble initiator or initiator mixture in the first step at a temperature above the melting point of the initiator or initiator mixture if no solvent is used, and below its decomposition temperature, optionally together with an essentially water-insoluble liquid solvent, which forms a liquid solution together with the initiator or the initiator mixture at the emulsification temperature, then, in a second step adding monomer, possibly additional emulsifier and that part of the desired amount of water which was not added in the first step, and initiating polymerization as per se known by heating.
    • 本发明提供了通过在第一步骤中在乳化剂存在下在水中乳化引发剂或引发剂混合物和任选的溶剂来制备聚合物胶乳的方法,并在第二步中加入单体并进行聚合。 该方法通过在高于引发剂或引发剂混合物的熔点的温度下在基本上不溶于水的引发剂或引发剂混合物中乳化来进行,如果不使用溶剂,低于其分解温度,任选地与本质上 水溶性液体溶剂,其在乳化温度下与引发剂或引发剂混合物一起形成液体溶液,然后在第二步中加入单体,可能附加的乳化剂和未加入的部分所需量的水 第一步,并且通过加热本身已经开始聚合。