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    Method for adsorbing and desorbing
    3.
    发明授权
    Method for adsorbing and desorbing 失效
    吸附和解吸方法

    公开(公告)号：US4729834A

    公开(公告)日：1988-03-08

    申请号：US878647

    申请日：1986-06-26

    申请人： Hiroshi Itoh ,  Toshimi Nakagawa ,  Atsuhiko Nitta ,  Tomio Tanaka ,  Hideo Kamio ,  Katsutoshi Nagai

    发明人： Hiroshi Itoh ,  Toshimi Nakagawa ,  Atsuhiko Nitta ,  Tomio Tanaka ,  Hideo Kamio ,  Katsutoshi Nagai

    IPC分类号： B01J20/26 ,  C08F8/00 ,  C08F220/54 ,  C08L33/26 ,  B01D15/00

    CPC分类号： C08F220/54 ,  B01J20/26 ,  C08F8/00 ,  C08L33/26 ,  C08L2205/02

    摘要： Disclosed herein is a high molecular composite material, which comprises as one component thereof a water insolubilized homopolymer of at least one monomer selected from specific N-alkyl- or N-alkylene-substituted (meth)acrylamides, a second copolymer of said at least one monomer with one or more monomers other than the (meth)acrylamides and copolymerizable therewith, or a water-insolubilized product of the homopolymer or either first or second copolymer. The water-insoluble product can form, with a low or high molecular compound containing one or more active hydrogen or hydrophobic groups, a composite material which may be applied widely for absorbing and desorbing a variety of valuable synthetic compounds and natural matter.

    摘要翻译： 本文公开了一种高分子复合材料，其包含至少一种选自特定N-烷基 - 或N-亚烷基取代的（甲基）丙烯酰胺的单体的水不溶性均聚物作为其一种组分，所述至少一种 单体与一种或多种除（甲基）丙烯酰胺之外且可与其共聚的单体，或均聚物或第一或第二共聚物的水不溶性产物。 水不溶性产物可以与含有一种或多种活性氢或疏水基团的低分子或高分子化合物形成，其可广泛用于吸收和解吸各种有价值的合成化合物和天然物质的复合材料。

    Method for the extraction of water from macromolecular solutions
    4.
    发明授权
    Method for the extraction of water from macromolecular solutions 失效
    从大分子溶液中萃取水的方法

    公开(公告)号：US4828710A

    公开(公告)日：1989-05-09

    申请号：US76983

    申请日：1987-07-21

    申请人： Hiroshi Itoh ,  Toshimi Nakagawa ,  Atsuhiko Nitta ,  Tomio Tanaka ,  Hideo Kamio

    发明人： Hiroshi Itoh ,  Toshimi Nakagawa ,  Atsuhiko Nitta ,  Tomio Tanaka ,  Hideo Kamio

    IPC分类号： B01D17/00 ,  B01D15/00 ,  B01J20/26 ,  C02F1/26

    CPC分类号： B01J20/26 ,  C02F1/265

    摘要： This invention pertains to a water-insolubilized resin of a polymer of at least one monomer selected from N-alkyl- or N-alkylene-substituted acrylamides or methacrylamides represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2 mean individually a hydrogen atom or methyl group and R.sub.3 denotes a methyl, ethyl or propyl group, with the proviso that R.sub.3 is an ethyl or propyl group when R.sub.2 stands for a hydrogen atom, and that R.sub.3 is a methyl or ethyl group when R.sub.2 stands for a methyl group, or wherein R.sub.2 and R.sub.3 form --CH.sub.2).sub.4 or --CH.sub.2).sub.2 O--CH.sub.2).sub.2 in combination; or a copolymer of at least one monomer selected from the acrylamides or methacrylamides and another copolymerizable monomer. The resin has water-absorbing capacity which varies in degree depending on temperature and, when heated, undergoes shrinkage even in the presence of a large excess of water to release once-absorbed water. Because of this property, it may be used as a water-separating agent to remove water from a water-containing system. Since the resin can exhibit a sort of molecular sieve action, it can selectively control the concentration of a macromolecular material without affecting the concentration of a low molecular weight compound such as a buffer agent. The resin is useful particularly in concentrating an aqueous solution or emulsion containing a material susceptible to thermal denaturation, such as an edible substance, amino acid, protein, polysaccharide or, enzyme which is difficult to concentrate by the evaporation technique, and also in controlling the concentration of an aqueous solution while adjusting the degree of water-absorbing capacity of the resin by varying its temperature.

    摘要翻译： 本发明涉及至少一种选自以下通式（I）表示的N-烷基 - 或N-亚烷基取代的丙烯酰胺或甲基丙烯酰胺的单体的聚合物的水不溶性树脂：其中R 1 并且R 2分别表示氢原子或甲基，R 3表示甲基，乙基或丙基，条件是当R 2表示氢原子时，R 3为乙基或丙基，并且R 3为甲基或乙基时， R2代表甲基，或其中R2和R3组合形成-CH2）4或-CH2）2O-CH2）2; 或至少一种选自丙烯酰胺或甲基丙烯酰胺的单体与另一种可共聚单体的共聚物。 树脂的吸水能力随温度而变化，加热时即使在大量过量的水的存在下也会发生收缩，以释放一次吸收的水。 由于这种性质，它可以用作水分离剂以从含水体系中除去水。 由于树脂可以表现出一种分子筛作用，它可以选择性地控制大分子材料的浓度，而不会影响缓冲剂等低分子量化合物的浓度。 该树脂特别用于浓缩含有易于热变性的物质的水溶液或乳液，例如食用物质，氨基酸，蛋白质，多糖或难以通过蒸发技术浓缩的酶，以及控制 同时通过改变其温度来调节树脂的吸水能力，同时浓缩水溶液。

    Process for the continuous preparation of reactive copolymers
    7.
    发明授权
    Process for the continuous preparation of reactive copolymers 失效
    连续制备反应性共聚物的方法

    公开(公告)号：US4068061A

    公开(公告)日：1978-01-10

    申请号：US667413

    申请日：1976-03-16

    申请人： Toshimi Nakagawa ,  Takanobu Numata ,  Noribumi Ito

    发明人： Toshimi Nakagawa ,  Takanobu Numata ,  Noribumi Ito

    IPC分类号： B01J14/00 ,  C08F2/00 ,  C08F2/02 ,  C08F2/04 ,  C08F2/06 ,  C08F6/00 ,  C08F6/06 ,  C08F16/00 ,  C08F16/14 ,  C08F20/00 ,  C08F20/32 ,  C08F220/32 ,  C08F246/00

    CPC分类号： C08F220/32 ,  C08F6/06 ,  Y10T428/31692

    摘要： A process is disclosed for the preparation of reactive copolymers by bulk- or solution polymerizing a material composed of a monomeric mixture consisting of at least one glycidyl group-containing monomer and at least one monomer copolymerizable therewith and a chain transfer agent in a stirred-tank reactor, and withdrawing from the reactor a liquid which contains the reactive copolymer in an amount equal to the feed. The process is improved by removing from the reaction liquid together with the reactive copolymer the adduct formed in the liquid by the reaction of the chain transfer agent with the monomers. The residue is then liquefied and directly recycled to the reactor.

    摘要翻译： 公开了一种制备反应性共聚物的方法，其通过本体或溶液聚合由包含至少一种含缩水甘油基的单体和至少一种可共聚单体的单体混合物组成的材料和在搅拌釜中的链转移剂 反应器，并从反应器中取出含有反应性共聚物的液体，其量等于进料。 通过链转移剂与单体的反应，通过从液体中形成的加合物与反应性共聚物一起除去反应液来改进该方法。 然后将残余物液化并直接再循环至反应器。