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    Method for adsorbing and desorbing
    1.
    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。

    Urine absorbing and holding material
    6.
    发明授权
    Urine absorbing and holding material 失效
    尿液吸收和保持材料

    公开(公告)号：US4718899A

    公开(公告)日：1988-01-12

    申请号：US782452

    申请日：1985-10-01

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

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

    IPC分类号： A61F5/44 ,  A61F13/49 ,  A61F13/53 ,  A61L15/60 ,  C08L33/26 ,  A61F13/16 ,  A61F13/18 ,  A61F13/20

    CPC分类号： A61L15/60 ,  C08L33/26 ,  C08L2205/02

    摘要： Disclosed herein is a urine absorbing and holding material, which comprises a homopolymer of at least one monomer selected from specific N-alkyl- or N-alkylene-substituted acrylamides and methacrylamides, a copolymer of two or more of the acrylamides and methacrylamides, a copolymer of said at least one monomer with one or more monomers other the the acrylamides and methacrylamides and copolymerizable therewith, and being a water-insolubilized product. By combining the urine absorbing and holding material in the form of powder, granules, flakes, fibers or a film with a fibrous material in the form of a woven fabric, non-woven fabric or a flocculent material, a useful urea absorbing and holding composite material is obtained in the form of a pad, diaper or drawers.

    摘要翻译： 本文公开了一种尿液吸收和保持材料，其包含至少一种选自特定N-烷基 - 或N-亚烷基取代的丙烯酰胺和甲基丙烯酰胺的单体的均聚物，两种或更多种丙烯酰胺和甲基丙烯酰胺的共聚物，共聚物 的所述至少一种单体与一种或多种其它丙烯酰胺和甲基丙烯酰胺并可与其共聚的单体，并且是不溶于水的产物。 通过将织物，无纺织物或絮状物质形式的纤维材料的粉末，颗粒，薄片，纤维或薄膜形式的吸尿保持材料组合，可用的尿素吸收和保持复合物 以垫，尿布或抽屉的形式获得材料。

    Polymer-coated solid materials
    8.
    发明授权
    Polymer-coated solid materials 失效
    聚合物涂层固体材料

    公开(公告)号：US4725499A

    公开(公告)日：1988-02-16

    申请号：US929905

    申请日：1986-11-13

    申请人： Hiroshi Itoh ,  Atsuhiko Nitta ,  Hideo Kamio

    发明人： Hiroshi Itoh ,  Atsuhiko Nitta ,  Hideo Kamio

    IPC分类号： B01F17/52 ,  C08F220/58 ,  B32B5/00 ,  C08K9/10

    CPC分类号： C08F220/58 ,  Y10T428/2907 ,  Y10T428/2933 ,  Y10T428/2991 ,  Y10T428/2998 ,  Y10T428/31504 ,  Y10T428/31551 ,  Y10T428/31855

    摘要： Disclosed is a novel process for preparing amidoalkanesulfonic acids of the general formula ##STR1## or derivatives thereof by reacting a nitrile compound (1) with a .beta.-hydroxyalkanesulfonic acid or a derivative thereof (2) in concentrated sulfuric acid.Among the compounds of the general formula (3) and derivatives thereof, unsaturated amido- and phenyl-substituted alkanesulfonic acids and derivatives thereof (in particular, 2-acrylamido-2-phenylpropanesulfonic acid and derivatives thereof) represented by the general formula ##STR2## can be copolymerized with other monomers and the like to provide useful materials such as copolymer-coated solid materials, copolymer emulsions, pigment dispersants and the like.

    摘要翻译： 公开了通过使腈化合物（1）与β-羟基链烷磺酸或其衍生物（2）在浓硫酸中反应来制备通式为（3）的酰胺基链烷磺酸或其衍生物的新方法。 在通式（3）的化合物及其衍生物中，由通式（IMAGE）表示的不饱和酰氨基和苯基取代的链烷磺酸及其衍生物（特别是2-丙烯酰胺基-2-苯基丙磺酸及其衍生物） （4）可以与其它单体等共聚以提供有用的材料，例如共聚物涂覆的固体材料，共聚物乳液，颜料分散剂等。

    Hardenable composition, aqueous gel and applications
    10.
    发明授权
    Hardenable composition, aqueous gel and applications 失效
    可硬化组合物，水凝胶和应用

    公开(公告)号：US5624998A

    公开(公告)日：1997-04-29

    申请号：US600029

    申请日：1996-02-12

    申请人： Hiroshi Itoh ,  Takashi Abe ,  Hideo Kamio ,  Hitoshi Yamashita ,  Atsuhiko Nitta

    发明人： Hiroshi Itoh ,  Takashi Abe ,  Hideo Kamio ,  Hitoshi Yamashita ,  Atsuhiko Nitta

    IPC分类号： C08F220/54 ,  C08F220/56 ,  C08K3/22 ,  C08K3/10

    CPC分类号： C08K3/22 ,  C08F220/54 ,  C08F220/56

    摘要： The present invention provides an aqueous gel comprising a polymer of (meth)acrylamide or particular (meth)acrylamide derivative(s), particulate metal oxide(s) and an aqueous medium, a process for producing said gel, and products utilizing said gel.This aqueous gel can be produced so as to have transparency, has fire resistance and can prevent the spreading of flames, and is highly elastic. The aqueous gel, when produced as a transparent gel, becomes cloudy when heated or cooled and is useful for the shielding of heat rays or cold radiation.

    摘要翻译： 本发明提供一种包含（甲基）丙烯酰胺或特定（甲基）丙烯酰胺衍生物的聚合物，颗粒金属氧化物和水性介质的聚合物的水凝胶，所述凝胶的制备方法和利用所述凝胶的产物。 该水性凝胶可以制造成具有透明性，具有耐火性，并且可以防止火焰蔓延，并且具有高弹性。 水凝胶当作为透明凝胶生产时，在加热或冷却时变得浑浊，并且可用于屏蔽热射线或冷辐射。