Water-Absorbent Agent Composition and Method for Manufacturing Same
    1.
    发明申请
    Water-Absorbent Agent Composition and Method for Manufacturing Same 审中-公开
    吸水剂组合物及其制造方法

    公开(公告)号:US20090215617A1

    公开(公告)日:2009-08-27

    申请号:US11992786

    申请日:2006-09-28

    IPC分类号: B01J20/26

    摘要: A subject invention provides a water-absorbent agent composition superior in both liquid permeability and liquid updrawing property, which are conventionally incompatible. Moreover, the water-absorbent agent composition according to the present invention causes less decrease in liquid updrawing property. The water-absorbent agent composition according to the present invention contains as a main component a polycarboxylic acid water-absorbent agent having a crosslinking structure which is produced by polymerizing an acid-group-containing unsaturated monomer, the water-absorbent agent composition containing water-insoluble organic or inorganic fine particles, the water-absorbent agent composition satisfying the following set of conditions (a) through (e): (a) decreasing rate of a liquid distribution velocity (LDV) is not more than 30%; (b) saline flow conductivity (SFC) is not less than 60 (Unit: 10−7 cm3 s/g); (c) mass average particle diameter (D50) is 200 to 420 m; (d) logarithm standard deviation (σζ) of particle size distribution is 0.25 to 0.40; and (e) percentage of particles less than 150 μm in diameter is not more than 3 mass % with respect to the whole particle amount.

    摘要翻译: 本发明提供了通常不兼容的液体渗透性和液体上升性优异的吸水剂组合物。 此外,根据本发明的吸水剂组合物导致液体上升性能的降低较少。 本发明的吸水剂组合物含有具有通过聚合含酸基的不饱和单体生成的交联结构的多元羧酸吸水剂作为主要成分,所述吸水剂组合物含有水溶性聚合物, 不溶性有机或无机细颗粒,满足以下条件(a)至(e)的吸水剂组合物:(a)液体分布速度(LDV)的降低率不大于30%; (b)盐水流动电导率(SFC)不小于60(单位:10-7 cm3s / g); (c)质量平均粒径(D50)为200〜420μm; (d)粒度分布的对数标准偏差(sigmazeta)为0.25〜0.40; 和(e)直径小于150μm的颗粒的百分比相对于整个颗粒量不超过3质量%。

    Particulate water absorbing agent comprising crosslinked absorbent resin and having low residual monomer, water absorbing article and method for production of water absorbing agent
    3.
    发明授权
    Particulate water absorbing agent comprising crosslinked absorbent resin and having low residual monomer, water absorbing article and method for production of water absorbing agent 有权
    含有交联吸水树脂并具有低残留单体,吸水性物品和吸水剂生产方法的颗粒状吸水剂

    公开(公告)号:US08182916B2

    公开(公告)日:2012-05-22

    申请号:US11816200

    申请日:2006-02-10

    摘要: An object of the present invention is to provide a water absorbing agent having a low amount of residual monomer, small variance of the amount of residual monomer among ranges of particle size distribution and favorable absorption properties, and being sanitary; an absorbing article; and a method for the production of a water absorbing agent. The water absorbing agent of the present invention has the amount of residual monomer of not higher than 500 ppm, and a residual monomer index of not greater than 0.30. The method for the production includes a first step of obtaining a hydrogel polymer by polymerizing an aqueous solution of a monomer including an unsaturated carboxylic acid and/or a salt thereof in the presence of a crosslinking agent; a second step of obtaining a water absorbent resin precursor which is in powder form and includes particles having a particle size of 300 to 850 μm and particles having a particle size of smaller than 300 μm as main components by drying said hydrogel polymer followed by pulverization and classification to adjust the particle size distribution, a third step of obtaining a water absorbent resin by heating a mixture of said water absorbent resin precursor and a surface crosslinking agent, which can form an ester bond around the surface of said water absorbent resin precursor, a fourth step of adding by spraying an aqueous solution that includes a sulfur-containing reducing agent to said water absorbent resin, and a fifth step of subjecting the mixture of the water absorbent resin and said aqueous solution to a heat treatment under an airflow of not lower than 40° C. but not higher than 120° C.

    摘要翻译: 本发明的目的是提供一种具有少量残留单体的吸水剂,在粒度分布范围和吸收性能良好之间的残留单体量的变化小,并且是卫生的; 吸收物品 和吸水剂的制造方法。 本发明的吸水剂的残留单体量不高于500ppm,残留单体指数不大于0.30。 制造方法包括在交联剂的存在下,通过使包含不饱和羧酸和/或其盐的单体的水溶液聚合而获得水凝胶聚合物的第一步骤; 第二步是通过干燥所述水凝胶聚合物,然后粉碎,得到粉末形式的吸水性树脂前体,并且包括粒度为300〜850μm的粒子和粒径小于300μm的粒子作为主要成分, 分级调整粒度分布,第三步骤是通过加热吸水性树脂前体和表面交联剂的混合物来获得吸水性树脂,该混合物可以在吸水性树脂前体的表面周围形成酯键, 第五步骤是通过将含有硫的还原剂的水溶液喷雾到所述吸水性树脂中而进行添加,第五步是在吸水性树脂和所述水溶液的混合物在不低于 超过40℃但不高于120℃

    FUEL SUPPLY SYSTEM
    4.
    发明申请
    FUEL SUPPLY SYSTEM 审中-公开
    燃油供应系统

    公开(公告)号:US20160016463A1

    公开(公告)日:2016-01-21

    申请号:US14868035

    申请日:2015-09-28

    IPC分类号: B60K15/03 B60K15/01

    摘要: To provide a fuel supply system in which fuel stored in a fuel storage tank formed in a housing main body can be supplied by a high-pressure pump provided in the housing main body in spite of a rapid acceleration or a rapid deceleration of an engine, two types of connectors, which is a first connector having a low-pressure pump having a connection port for a fuel supply pipe from a fuel tank and a second connector having no pump, can be selectively attached via a common connector mounting part formed on a wall surface of a housing main body, and by using a housing having therein the commonly used high-pressure pump, a fuel supply system using an external pump and a fuel supply system using no external pump can be respectively manufactured in accordance with the purpose of use.

    摘要翻译: 为了提供一种燃料供应系统,其中,尽管发动机的快速加速或快速减速,但是存储在形成在壳体主体中的燃料储存罐中的燃料可以由设置在壳体主体中的高压泵供给, 作为具有低压泵的第一连接器,具有用于燃料箱的燃料供给管的连接口和不具有泵的第二连接器的第一连接器可以经由公共连接器安装部分 并且通过使用其中具有常用的高压泵的壳体,使用外部泵的燃料供给系统和不使用外部泵的燃料供给系统可以分别根据目的来制造 使用。

    Water-absorbing composition and its use
    6.
    发明授权
    Water-absorbing composition and its use 有权
    吸水组合物及其用途

    公开(公告)号:US06586549B1

    公开(公告)日:2003-07-01

    申请号:US09610967

    申请日:2000-07-06

    IPC分类号: C08J22046

    摘要: The present invention provides: a water-absorbing composition such that portions containing the water-absorbing composition in a high concentration exhibit excessive-liquid permeation buffering effects in absorbent articles comprising the water-absorbing composition and hydrophilic fibers; and a use of this water-absorbing composition. The water-absorbing composition comprises a water-absorbent resin and an excessive-liquid permeation buffer, wherein the water-absorbent resin is a product by a process including the step of further crosslinking the surface vicinity of a crosslinked polymer, and this water-absorbing composition is characterized by having a liquid permeation buffering index of not less than 0.4 and exhibiting an absorption capacity of not less than 25 g/g in absorbent structures under load, and further having an average particle diameter in the range of 200˜600 &mgr;m, wherein the ratio of particles having particle diameters smaller than 106 &mgr;m in the water-absorbing composition is not more than 5 weight %. This water-absorbing composition is, for example, used for the absorbent articles comprising the water-absorbing composition and the hydrophilic fibers.

    摘要翻译: 本发明提供一种吸水性组合物,使得含有高浓度吸水性组合物的部分在含有吸水性组合物和亲水性纤维的吸收性物品中表现出过度的液体渗透缓冲效果; 以及这种吸水组合物的用途。 吸水性组合物包含吸水性树脂和过量液体渗透缓冲液,其中吸水性树脂是通过包括进一步交联交联聚合物表面附近的步骤的方法的产物,并且该吸水性树脂 其组成的特征在于在负载下的吸收结构体中的液体渗透缓冲指数为0.4以上,吸收能力为25g / g以上,平均粒径在200〜600μm的范围内, 其中,吸水性组合物中粒径小于106μm的粒子的比例为5重量%以下。 该吸水性组合物例如用于包含吸水性组合物和亲水性纤维的吸收性物品。

    Water absorbing agent, water absorbing article and method for production of water absorbing agent
    7.
    发明申请
    Water absorbing agent, water absorbing article and method for production of water absorbing agent 有权
    吸水剂,吸水剂及吸水剂的制造方法

    公开(公告)号:US20100062252A1

    公开(公告)日:2010-03-11

    申请号:US11816200

    申请日:2006-02-10

    IPC分类号: C08F120/06 C08F8/34 B32B5/16

    摘要: An object of the present invention is to provide a water absorbing agent having a low amount of residual monomer, small variance of the amount of residual monomer among ranges of particle size distribution and favorable absorption properties, and being sanitary; an absorbing article; and a method for the production of a water absorbing agent. The water absorbing agent of the present invention has the amount of residual monomer of not higher than 500 ppm, and a residual monomer index of not greater than 0.30. The method for the production includes a first step of obtaining a hydrogel polymer by polymerizing an aqueous solution of a monomer including an unsaturated carboxylic acid and/or a salt thereof in the presence of a crosslinking agent; a second step of obtaining a water absorbent resin precursor which is in powder form and includes particles having a particle size of 300 to 850 μm and particles having a particle size of smaller than 300 μm as main components by drying said hydrogel polymer followed by pulverization and classification to adjust the particle size distribution, a third step of obtaining a water absorbent resin by heating a mixture of said water absorbent resin precursor and a surface crosslinking agent, which can form an ester bond around the surface of said water absorbent resin precursor, a fourth step of adding by spraying an aqueous solution that includes a sulfur-containing reducing agent to said water absorbent resin, and a fifth step of subjecting the mixture of the water absorbent resin and said aqueous solution to a heat treatment under an airflow of not lower than 40° C. but not higher than 120° C.

    摘要翻译: 本发明的目的是提供一种具有少量残留单体的吸水剂,在粒度分布范围和吸收性能良好之间的残留单体量的变化小,并且是卫生的; 吸收物品 和吸水剂的制造方法。 本发明的吸水剂的残留单体量不高于500ppm,残留单体指数不大于0.30。 制造方法包括在交联剂的存在下,通过使包含不饱和羧酸和/或其盐的单体的水溶液聚合而获得水凝胶聚合物的第一步骤; 第二步是通过干燥所述水凝胶聚合物,然后粉碎,得到粉末形式的吸水性树脂前体,并且包括粒度为300〜850μm的粒子和粒径小于300μm的粒子作为主要成分, 分级调整粒度分布,第三步骤是通过加热吸水性树脂前体和表面交联剂的混合物来获得吸水性树脂,该混合物可以在吸水性树脂前体的表面周围形成酯键, 第五步骤是通过将含有硫的还原剂的水溶液喷雾到所述吸水性树脂中而进行添加,第五步是在吸水性树脂和所述水溶液的混合物在不低于 超过40℃但不高于120℃

    Particulate Water-Absorbing Agent Containing Water-Absorbent Resin as a Main Component
    8.
    发明申请
    Particulate Water-Absorbing Agent Containing Water-Absorbent Resin as a Main Component 有权
    含有吸水性树脂作为主要成分的颗粒吸水剂

    公开(公告)号:US20080075937A1

    公开(公告)日:2008-03-27

    申请号:US11662590

    申请日:2005-09-22

    IPC分类号: B32B7/02 B32B5/16 C08K9/00

    摘要: In at least one embodiment, a particulate water-absorbing agent is provided which not only ensures the many conventional physical properties (absorption rate, centrifuge retention capacity, absorbency against pressure, particle size distribution etc.) but also prevents odor which is generated after the resin is swollen by absorption. The water absorbent agent of an embodiment of the present invention therefore does not cause odor in actual use. As a result of intensive study of the foregoing problem, an embodiment of the present invention offers a way of controlling a specific odor component, which is generated from impurities and/or by-product derived from the raw material, after the high temperature process. In this way, an embodiment of the present invention successfully provides a water absorbent agent not causing odor after the resin is swollen by absorption.

    摘要翻译: 在至少一个实施方案中,提供了一种颗粒状吸水剂,其不仅确保了许多常规物理性能(吸收速率,离心保留能力,耐压吸收性,粒度分布等),而且还防止了在 树脂通过吸收而膨胀。 因此,本发明的实施方式的吸水剂在实际使用中不会引起气味。 作为对上述问题的深入研究的结果,本发明的实施方式提供了在高温处理之后控制由原料衍生的杂质和/或副产物产生的特定气味成分的方法。 以这种方式,本发明的一个实施方案成功地提供了在树脂通过吸收溶胀而不产生气味的吸水剂。

    Water-absorbent resin and its production process

    公开(公告)号:US20060276598A1

    公开(公告)日:2006-12-07

    申请号:US10555707

    申请日:2004-05-07

    IPC分类号: C08F120/10 C08F8/00

    摘要: Objects of the present invention are: to provide a water-absorbent resin which exhibits excellent balances between water absorption performances; and further to provide a process by which a water-absorbent resin having excellent absorption properties can be produced even if no hydrophilic organic solvent is used, or even if its amount is extremely reduced, when carrying out the surface-crosslinking treatment; and further to provide a water-absorbent resin optimum to absorbent articles such as diapers. As a means of achieving these objects, the process according to the present invention for production of the water-absorbent resin comprises: a step (1) of polymerizing a monomer component including an acid-group-containing unsaturated monomer as an essential component to thereby obtain a hydrogel polymer; a step (2) of drying and pulverizing the hydrogel polymer to thereby obtain a water-absorbent resin powder; a step (3) of adding a surface-crosslink-treating agent to the water-absorbent resin powder, wherein the surface-crosslink-treating agent includes a surface-crosslinking agent and water as essential components and has a hydrophilic organic solvent content of 0 to 10 mass % relative to the surface-crosslink-treating agent; and a step (4) of heating the resultant mixture to thereby carry out surface-crosslinking treatment; wherein a time of from the end of the step (3) till the beginning of the step (4) is within 5 minutes.

    Water-absorbing agent and its production process
    10.
    发明申请
    Water-absorbing agent and its production process 有权
    吸水剂及其生产工艺

    公开(公告)号:US20060247351A1

    公开(公告)日:2006-11-02

    申请号:US11373215

    申请日:2006-03-13

    IPC分类号: C09D5/08 C08K3/22 C04B26/06

    摘要: A water-absorbing agent according to the present invention includes water-absorbent resin particles having an internal cross-linked structure,.wherein a vicinity of a surface of the water-absorbent resin particle is cross-linked with a surface cross-linking agent, and the water-absorbent resin particle has therein a sea-island structure having (i) part containing a first water-soluble multivalent metal salt such as aluminum sulfate and (ii) part not containing the first water-soluble multivalent metal salt. With this arrangement, it is possible to provide a water-absorbing agent having less water-soluble component content, more excellent liquid permeability, and more excellent water retention under pressure than the conventional water-absorbing agent.

    摘要翻译: 根据本发明的吸水剂包括具有内部交联结构的吸水性树脂颗粒,其中吸水性树脂颗粒的表面附近与表面交联剂交联, 并且吸水性树脂颗粒具有海岛结构,其具有(i)部分含有第一水溶性多价金属盐如硫酸铝和(ii)不含第一水溶性多价金属盐的部分。 通过这种布置,可以提供比常规吸水剂更低的水溶性组分含量,更好的液体渗透性和更优异的保压性的吸水剂。