Water absorbing agent
    1.
    发明授权
    Water absorbing agent 失效
    吸水剂

    公开(公告)号:US4734478A

    公开(公告)日:1988-03-29

    申请号:US748820

    申请日:1985-06-26

    摘要: The invention provides [I] a water-absorbing agent composed of a water-absorbing resin powder having the molecular chains near its surface being crosslinked, said powder being obtained by mixing 100 parts by weight of a powder of a carboxyl-containing water-absorbing resin selected from the group consisting of a hydrolyzate of a starch-acrylonitrile graft polymer, a partially neutralized product of a starch-acrylic acid graft polymer, a saponification product of a vinyl acetate-acrylic ester copolymer, a hydrolyzate of an acrylonitrile copolymer, a crosslinked product of a hydrolyzate of an acrylonitrile copolymer, a hydrolyzate of an acrylamide copolymer, a crosslinked product of a hydrolyzate of an acrylamide copolymer, a partially neutralized product of polyacrylic acid, and a crosslinked product of partially neutralized polyacrylic acid with 0.001 to 10 parts by weight of a polyhydric alcohol, 0.01 to 8 parts by weight of a hydrophilic organic solvent and 0 to 8 parts by weight of water, and heating the mixture at a temperature of at least 90.degree. C. to react the water-absorbing resin powder with the polyhydric alcohol; [II] a water-absorbing agent composed of a mixture of the water-absorbing agent [I] with finely divided silica; [III] a water-absorbing agent obtained by pulverizing and granulating a mixture of the water-absorbing agent [I] with an aqueous liquid; and [IV] a water-absorbing agent composed of a mixture of the water-absorbing agent [III] with finely divided silica.

    摘要翻译: 本发明提供[I]一种由其表面附近的分子链交联的吸水性树脂粉末组成的吸水剂,所述粉末是通过将100重量份的含羧基的吸水性粉末 选自淀粉 - 丙烯腈接枝聚合物的水解产物,淀粉 - 丙烯酸接枝聚合物的部分中和产物,乙酸乙烯酯 - 丙烯酸酯共聚物的皂化产物,丙烯腈共聚物的水解产物, 丙烯腈共聚物的水解产物,丙烯酰胺共聚物的水解产物,丙烯酰胺共聚物的水解产物的交联产物,聚丙烯酸的部分中和产物和部分中和的聚丙烯酸的交联产物与0.001至10份的交联产物 的多元醇,0.01〜8重量份的亲水性有机溶剂和0〜8重量份的 水,并在至少90℃的温度下加热混合物以使吸水性树脂粉末与多元醇反应; [II]由吸水剂[I]与细碎二氧化硅的混合物组成的吸水剂; [III]通过将吸水剂[I]与水性液体的混合物粉碎和造粒得到的吸水剂; 和[IV]由吸水剂[III]与细碎二氧化硅的混合物组成的吸水剂。

    Absorbent resin composition and process for producing same
    2.
    发明授权
    Absorbent resin composition and process for producing same 失效
    吸收性树脂组合物及其制造方法

    公开(公告)号:US4286082A

    公开(公告)日:1981-08-25

    申请号:US137640

    申请日:1980-04-07

    摘要: An absorbent resin composition obtained by copolymerizing in an aqueous solution a mixture of 100 parts by weight of an acrylate salt monomer (B) composed of 0 to 50 mol % of acrylic acid and 50 to 100 mol % of an alkali metal acrylate and 0.001 to 5 part by weight of a crosslinkable monomer (C) having 2 to 4 groups selected from the group consisting of CH.sub.2 .dbd.CHCO--, CH.sub.2 .dbd.C(CH.sub.3)C0-- and CH.sub.2 .dbd.CH-CH.sub.2 -- in the molecule in the presence of at least one surface-active agent (A) selected from the group consisting of water-soluble surface-active agents and water-dispersible surface-active agents in the presence of a water-soluble radical polymerization initiator while maintaining the initial concentration of said mixture in the range of from 25% by weight to saturation, and then drying the resulting gel-like hydrous polymer under heat; and an absorbent resin composition obtained by pulverizing said absorbent resin composition to form a resin powder, and blending said resin powder with 0.01 to 10 parts by weight, per 100 parts by weight of said resin powder, of ultra-microscopic silica having a specific surface area, measured by the Brunauer-Emmett-Teller method, of at least 50 m.sup.2 /g and a particle diameter of not more than about 0.05 micron: and a process for producing the same.

    摘要翻译: 一种吸收性树脂组合物,其通过在水溶液中共聚100重量份由0〜50摩尔%的丙烯酸和50〜100摩尔%的碱金属丙烯酸酯组成的丙烯酸盐单体(B)和0.001〜 5重量份在存在下的分子中具有2至4个选自CH 2 = CHCO-,CH 2 = C(CH 3)C 0 - 和CH 2 = CH-CH 2 - 的基团的交联性单体(C) 在水溶性自由基聚合引发剂存在下,选自水溶性表面活性剂和水分散性表面活性剂的至少一种表面活性剂(A),同时保持所述混合物的初始浓度 25重量%至饱和的范围,然后在加热下干燥所得凝胶状含水聚合物; 和通过将所述吸收性树脂组合物粉碎以形成树脂粉末而获得的吸收性树脂组合物,并将所述树脂粉末与每100重量份所述树脂粉末相当的0.01至10重量份的具有比表面积的超微量二氧化硅 通过Brunauer-Emmett-Teller方法测量的面积至少为50m 2 / g,粒径不大于约0.05微米,及其制造方法。

    Method for production of absorbent resin
    3.
    发明授权
    Method for production of absorbent resin 失效
    吸水树脂的生产方法

    公开(公告)号:US5478879A

    公开(公告)日:1995-12-26

    申请号:US822916

    申请日:1992-01-21

    CPC分类号: C08F2/10 Y10S524/916

    摘要: A method for the production of an absorbent resin, which method comprises mixing 100 parts by weight of (A) a hydrated gel of absorbent resin which is resulted from aqueous solution polymerization having a polymerization ratio in the range of from 60 to 99%, an average particle diameter in the range of from 0.1 to 200 mm, a water content in the range of from 30 to 90% by weight, and a temperature in the range of from 40.degree. to 110.degree. C., with from 1 to 50 parts by weight of (B) a substantially dry fine absorbent resin powder having an average particle diameter smaller than the average particle diameter assumed by said hydrated gel of absorbent resin (A) while in a dried state, then raising the polymerization ratio of said hydrated gel of absorbent resin (A) to a level higher than the polymerization ratio of said hydrated gel when being mixed.

    摘要翻译: 一种制造吸收性树脂的方法,该方法包括将100重量份由(A)由聚合率为60-99%范围的水溶液聚合得到的吸水性树脂的水合凝胶, 平均粒径为0.1〜200mm,水含量为30〜90重量%,温度为40〜110℃,1〜50份 (B)在干燥状态下,平均粒径小于由吸水性树脂(A)的所述水合凝胶构成的平均粒径的基本上干燥的细小吸水树脂粉末,然后提高所述水合凝胶的聚合比例 的吸水性树脂(A)的混合比例高于所述水合凝胶的混合比。

    Process for preparing an absorbent resin crosslinked with a mixture of
trimethylolpropane diacrylate and triacrylate
    4.
    发明授权
    Process for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylate 失效
    制备用三羟甲基丙烷二丙烯酸酯和三丙烯酸酯的混合物交联的吸收性树脂的方法

    公开(公告)号:US5574121A

    公开(公告)日:1996-11-12

    申请号:US262065

    申请日:1994-06-17

    摘要: A process for preparing an absorbent resin includes the steps of: preparing a first crosslinking agent (A) including at least two polymerizable unsaturated bonds; preparing a second crosslinking agent (B) including at least two polymerizable unsaturated bonds and hydroxyl groups; preparing a crosslinking agent including (A) and (B) with a ratio of (A) to (B) ranging from 95/5 to 50/50; and polymerizing a hydrophilic unsaturated monomer having at least one carboxyl group using the crosslinking agent. The crosslinking agent includes a crosslinking agent which includes a main component at least 90 percent by weight, the main component being an ester having at least two polymerizable unsaturated bonds, wherein the ester is composed of a polyhydroxy alcohol (C) having not more than six carbon atoms and at least three hydroxy groups, and an unsaturated carboxylic acid (D); and a molecular weight ratio of the main component to a standard compound (E) is in the range of from 0.7/1 to less than 1.3/1, (E) being an ester composed of (C) that composes the main component, and (D) that composes the main component, in which all the hydroxy groups in (C) are ester-linked with (D).

    摘要翻译: 制备吸收性树脂的方法包括以下步骤:制备包含至少两个可聚合不饱和键的第一交联剂(A); 制备包含至少两个可聚合不饱和键和羟基的第二交联剂(B); 制备包含(A)和(B)的交联剂,比例为(A)至(B)为95/5至50/50; 并使用交联剂聚合具有至少一个羧基的亲水性不饱和单体。 交联剂包括交联剂,其包含至少90重量%的主要组分,主要组分是具有至少两个可聚合不饱和键的酯,其中该酯由不超过六个的多羟基醇(C)组成 碳原子和至少三个羟基,和不饱和羧酸(D); 并且主成分与标准化合物(E)的分子量比在0.7 / 1〜小于1.3 / 1的范围内,(E)是由构成主成分的(C)构成的酯,和 (D)构成其中(C)中的所有羟基与(D)酯连接的主要组分。

    Cylinder head gasket
    5.
    发明授权
    Cylinder head gasket 有权
    气缸盖垫片

    公开(公告)号:US08960681B2

    公开(公告)日:2015-02-24

    申请号:US12737268

    申请日:2009-07-06

    IPC分类号: F02F11/00 F16J15/08

    摘要: A cylinder head gasket 1 is sandwiched between a cylinder head 2 and a cylinder block 3 with a cylinder bore 4 and includes a substrate 10 with a combustion chamber hole 14 drilled at a position of the cylinder bore 4, and seal plates 11 to 13, the substrate 10 and the seal plates are stacked on one another. Fixation members 21 and 22 are secured to the substrate around a periphery of the combustion chamber hole. The seal plates include an engagement hole 23 formed therein and with which the fixation members are engaged. The engagement hole is engaged with the fixation members. The fixation members are sandwiched between the cylinder head and the cylinder block. The cylinder head and the cylinder block can be firmly coupled together via the fixation members.

    摘要翻译: 气缸盖垫片1夹在气缸盖2和具有气缸孔4的气缸体3之间,并且包括在气缸孔4的位置处钻有燃烧室孔14的基板10和密封板11至13, 基板10和密封板彼此堆叠。 固定构件21和22在燃烧室孔的周围固定到基板。 密封板包括形成在其中的接合孔23,固定构件与其接合。 接合孔与固定构件接合。 固定构件夹在气缸盖和气缸体之间。 气缸盖和气缸体可以通过固定构件牢固地连接在一起。

    Engine piston having a recess defined in the lower surface of the head
    6.
    发明授权
    Engine piston having a recess defined in the lower surface of the head 失效
    发动机活塞具有限定在头部的下表面中的凹部

    公开(公告)号:US5713262A

    公开(公告)日:1998-02-03

    申请号:US661247

    申请日:1996-06-10

    CPC分类号: F02F3/22 F01P3/08 F02F3/027

    摘要: A piston, which reciprocates in a cylinder bore of an engine, is supplied with lubricating oil. The piston includes pin bosses provided under a piston head, a symmetrical pair of skirts, and side walls connecting the pin bosses and the skirts. The side walls have openings, which communicate the outer side of the walls with the inner side of the walls under the middle section of the head. A recess is defined in the lower surface of the head to receive a spray of lubricating oil. The width of the recess is wider than the width of each skirt at its basal portion. This causes the oil supplied to the lower surface of the head during movement of the piston to be injected against the recess and thus be diffused. As a result, oil passes by the basal section of the skirts and permeates into the space defined by the cylinder bore and the skirts.

    摘要翻译: 在发动机的气缸孔中往复运动的活塞被供给润滑油。 活塞包括设置在活塞头下方的销凸台,对称的一对裙子和连接销凸台和裙部的侧壁。 侧壁具有开口,其将壁的外侧与头部中间部分下方的壁的内侧连通。 在头部的下表面中限定凹部以接收润滑油的喷雾。 凹槽的宽度比每个裙部在其基部的宽度宽。 这使得在活塞运动期间向头部的下表面供应的油被注入凹部并因此被扩散。 结果,油通过裙边的基部并渗透到由缸孔和裙部限定的空间中。

    Water-absorbent agent, method for production thereof, and
water-absorbent composition
    7.
    发明授权
    Water-absorbent agent, method for production thereof, and water-absorbent composition 失效
    吸水剂,其制造方法和吸水性组合物

    公开(公告)号:US5610208A

    公开(公告)日:1997-03-11

    申请号:US388838

    申请日:1995-02-15

    摘要: A method for the production of a water-absorbent agent comprises mixing an absorbent resin containing a carboxyl group with an additive soluble in the aqueous solution of at least one member selected from the group consisting of inorganic acids, organic acids, and polyamino acids and a cross-linking agent capable of reacting with the carboxyl group. A water-absorbent agent obtained by adding from 0.005 to 8 parts by weight of an epoxy compound to 100 parts by weight of a water-absorbent resin, exhibiting an absorption capacity without load of at least 45 (g/g), an absorption capacity under load of 20 g/cm.sup.2 of not less than 30 (ml/g) and having a residue amount of an epoxy compound of not more than 2 ppm. A water-absorbent composition comprises a polyamino acid (salt) and a water-absorbent resin containing a carboxyl group.

    摘要翻译: 制造吸水剂的方法包括将含羧基的吸收性树脂与可溶于选自无机酸,有机酸和聚氨基酸中的至少一种的水溶液中的添加剂混合,以及 能够与羧基反应的交联剂。 通过将0.005〜8重量份的环氧化合物与100重量份的吸水性树脂相加而获得的吸水剂,其表现出无负载的吸收能力为至少45(g / g),吸收能力 负荷为20g / cm 2以下,不低于30(ml / g),残留量不超过2ppm的环氧化合物。 吸水性组合物包含聚氨基酸(盐)和含有羧基的吸水性树脂。

    CYLINDER HEAD GASKET
    8.
    发明申请
    CYLINDER HEAD GASKET 有权
    气缸头垫

    公开(公告)号:US20110095492A1

    公开(公告)日:2011-04-28

    申请号:US12737268

    申请日:2009-07-06

    IPC分类号: F02F11/00

    摘要: A cylinder head gasket 1 is sandwiched between a cylinder head 2 and a cylinder block 3 with a cylinder bore 4 and includes a substrate 10 with a combustion chamber hole 14 drilled at a position of the cylinder bore 4, and seal plates 11 to 13, the substrate 10 and the seal plates are stacked on one another. Fixation members 21 and 22 are secured to the substrate around a periphery of the combustion chamber hole. The seal plate includes an engagement hole 23 formed therein and with which the fixation members are engaged. The engagement hole is engaged with the fixation members. The fixation members are sandwiched between the cylinder head and the cylinder block. The cylinder head and the cylinder block can be firmly coupled together via the fixation members. This allows deformation of the cylinder block caused by explosion pressure in an engine to be suppressed. As a result, possible degradation of sealability can be prevented.

    摘要翻译: 气缸盖垫片1夹在气缸盖2和具有气缸孔4的气缸体3之间,并且包括在气缸孔4的位置处钻有燃烧室孔14的基板10和密封板11至13, 基板10和密封板彼此堆叠。 固定构件21和22在燃烧室孔的周围固定到基板。 密封板包括形成在其中并与固定构件接合的接合孔23。 接合孔与固定构件接合。 固定构件夹在气缸盖和气缸体之间。 气缸盖和气缸体可以通过固定构件牢固地连接在一起。 由此,能够抑制发动机的爆炸压力引起的缸体的变形。 结果,可以防止密封性的降低。

    Absorbent resin composition
    9.
    发明申请
    Absorbent resin composition 有权
    吸收性树脂组合物

    公开(公告)号:US20060025536A1

    公开(公告)日:2006-02-02

    申请号:US11228332

    申请日:2005-09-19

    IPC分类号: C08F120/02 C08F120/62

    摘要: A method for the production of a water-absorbent agent comprises mixing an absorbent resin containing a carboxyl group with an additive soluble in the aqueous solution of at least one member selected from the group consisting of inorganic acids, organic acids, and polyamino acids and a cross-linking agent capable of reacting with the carboxyl group. A water-absorbent agent obtained by adding from 0.005 to 8 parts by weight of an epoxy compound to 100 parts by weight of a water-absorbent resin, exhibiting an absorption capacity without load of at least 45 (g/g), an absorption capacity under load of 20 g/cm2 of not less than 30 (ml/g) and having a residue amount of an epoxy compound of not more than 2 ppm. A water-absorbent composition comprises a polyamino acid (salt) and a water-absorbent resin containing a carboxyl group.

    摘要翻译: 制造吸水剂的方法包括将含羧基的吸收性树脂与可溶于选自无机酸,有机酸和聚氨基酸中的至少一种的水溶液中的添加剂混合,以及 能够与羧基反应的交联剂。 通过将0.005〜8重量份的环氧化合物与100重量份的吸水性树脂相加而获得的吸水剂,其表现出无负载的吸收能力为至少45(g / g),吸收能力 在20g / cm 2以下的负载不小于30(ml / g),残留量为不大于2ppm的环氧化合物。 吸水性组合物包含聚氨基酸(盐)和含有羧基的吸水性树脂。

    Method of adjusting hardness of metallic material
    10.
    发明授权
    Method of adjusting hardness of metallic material 失效
    调整金属材料硬度的方法

    公开(公告)号:US4874437A

    公开(公告)日:1989-10-17

    申请号:US307545

    申请日:1989-02-08

    IPC分类号: C21D1/10 C21D1/26

    摘要: A method of adjusting the hardness of a metallic material includes the steps of induction-tempering both of tough and hard portions which have been given a hardness required for the hard portion to a hardness required for the tough portion, induction-hardening the hard portion alone to a hardness higher than that required for the hard portion, and induction-tempering the hard portion alone to a hardness required for the hard portion.

    摘要翻译: 一种调整金属材料的硬度的方法包括以下步骤:强硬部分的感应回火,所述韧性部分和硬部分已经被赋予硬部分所需的硬度达到韧性部分所需的硬度,仅对硬部分进行感应硬化 硬度高于硬部所需的硬度,并且将硬度部分感应回火至硬部所需的硬度。