Absorbent inserts, method of producing them and their use
    2.
    发明授权
    Absorbent inserts, method of producing them and their use 有权
    吸收性插入物,其制造方法及其用途

    公开(公告)号:US06350710B1

    公开(公告)日:2002-02-26

    申请号:US09147476

    申请日:1999-02-25

    IPC分类号: B32B516

    摘要: The invention relates to an absorbent insert for foodstuff packagings, the liquid-absorbing component of which is a superabsorbent polymer which, in a hitherto unrivaled fashion, persistently absorbs and retains large quantities of liquid even under high pressure load, protects the foodstuffs from bacterial decay, and prevents contamination of the packaging goods by migrating soluble constituents of the polymer. This combination of properties of the superabsorbers used is expressed by the QSAP 0.3 quotient of retention according to the tea bag test+absorption against pressure (AAP) 0.3, divided by the amount of solubles (LA), which quotient is at least 20. Superabsorbers having such properties are obtained by using special combinations of crosslinkers. Furthermore, the invention relates to a process for producing said absorbent inserts and their use in foodstuff packagings, as ice substitute, and as leak-proofing means in transport packagings.

    摘要翻译: 本发明涉及一种用于食品容器的吸收性插入物,其液体吸收组分是超吸收聚合物,其以至无可比拟的方式即使在高压力负载下仍持续吸收并保留大量液体,保护食品免受细菌衰变 并且通过迁移聚合物的可溶性成分来防止包装物质的污染。 所使用的超吸收剂的这种性质的组合由根据茶包试验+吸收压力(AAP)0.3的QSAP 0.3保留量除以可商品(LA)的量,该商为至少20.超吸收剂 通过使用交联剂的特殊组合获得这些性质。 此外,本发明涉及一种生产所述吸收性插入物的方法及其在食品容器中的用途,作为冰替代物,以及用作运输包装中的防漏装置。

    Fluid-absorbing polymers, processes used in their production and their
application
    5.
    发明授权
    Fluid-absorbing polymers, processes used in their production and their application 失效
    流体吸收聚合物,其生产中使用的方法及其应用

    公开(公告)号:US5837789A

    公开(公告)日:1998-11-17

    申请号:US752889

    申请日:1996-11-20

    摘要: The present invention relates to superabsorbent cross-linked polymers for watery liquids, which are built-up of partially neutralized monomers having monoethylenlcally unsaturated acid groups, optionally further monomers copolymerizable therewith, as well as polymers optionally suitable as graft basis, and which can be manufactured by using a cross-linker/monomer combination of CH.sub.2 .dbd.CHR.sup.6 --CO--(OCHR.sup.3 --CHR.sup.3).sub.z O--CH.sub.2 --CHR.sup.6 .dbd.CH.sub.2 CH.sub.2 .dbd.CHR.sup.6 --R.sup.5 --(OCHR.sup.3 --CHR.sup.3).sub.v OR.sup.4R.sup.1 --�O(CHR.sup.3 --CHR.sup.3 O).sub.u --CO--R.sup.2 !.sub.x, and/or di- or triallylamine and/or bisacrylamide with R.sup.1 : multivalent C2-10-alkyl, R.sup.2 : linear or branched C2-10-alkenyl, R.sup.3 : H, CH.sub.3, C.sub.2 H.sub.5, R.sup.4 : H, linear or branched C1-10-alkyl, R.sup.6 : CO, CH.sub.2 R.sup.8 : H, CH.sub.3 x: 2-6 u: 0-15 V: 1-45 z: 3-20 As compared with the state of the art, the polymers according to the present invention have an improved combination of the properties retention, liquid absorption under pressure at 63 g/cm.sup.2 and soluble contents, moreover, they have an Increased permeability of the gel layer for watery liquids, a high suction rate, and a high swelling pressure. The polymers are used as absorbents for water and watery liquids in constructions for the absorption of body fluids, In electricity or light-conducting cables, and in plant raising.

    摘要翻译: 本发明涉及用于水性液体的超吸收性交联聚合物,其由具有单乙烯烯不饱和酸基团的部分中和的单体组成,任选地可与其共聚的其它单体,以及任选地适合作为接枝基的聚合物,并且可以制造 通过使用CH 2 = CHR 6 -CO-(OCHR 3 -CHR 3)z O-CH 2 -CHR 6 = CH 2 CH 2 = CHR 6 -R 5 - (OCHR 3 -CHR 3)vOR 4 R 1 - [O(CHR 3 -CHR 3 O)u的交联剂/单体组合 -CO-R2] x,和/或二烯或三烯丙基胺和/或双丙烯酰胺与R1:多价C 2-10 - 烷基,R 2:直链或支链C 2-10 - 烯基,R 3:H,CH 3,C 2 H 5,R 4:H, 直链或支链C 1-10 - 烷基,R 6:CO,CH 2 R 8:H,CH 3 x:2-6 u:0-15 V:1-45 z:3-20与现有技术相比,根据 本发明具有改进的性能保持性,在63g / cm 2的压力下的液体吸收和可溶性内容物的组合,此外,它们具有增加水性液体凝胶层的渗透性 ,高吸入率和高膨胀压力。 聚合物被用作用于吸收体液,电力或导电电缆以及植物提取的结构中的水和含水液体的吸收剂。

    Superabsorbent polymer with slow absorption times
    7.
    发明授权
    Superabsorbent polymer with slow absorption times 有权
    超吸收性聚合物吸收时间慢

    公开(公告)号:US07285614B2

    公开(公告)日:2007-10-23

    申请号:US10660982

    申请日:2003-09-12

    IPC分类号: C08F20/06

    CPC分类号: A61L15/60

    摘要: The invention relates to hydrophilic superabsorbent polymer comprising a) from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; b) from about 0.001 to about 5.0 wt. % of internal crosslinking agent; c) from about 0.001 to about 5.0 wt. % of surface crosslinking agent applied to the particle surface; and d) wherein the composition has a degree of neutralization of more than about 20%, and from about 20 mole % to about 75 mole % of the unsaturated acid group containing monomers are neutralized with a first neutralizing agent, and from about 5 mole % to about 40 mole % of the unsaturated acid group containing monomers are neutralized with a second neutralizing agent; at a temperature of about 75° C. or less. Such hydrophilic superabsorbent polymers have an Absorption Time of about 5+10 a2 minutes or greater, where a is the mean particle size of the superabsorbent material in millimeters, a capacity of about 15 g/g or greater, a Drop Penetration Value of about 2 seconds or less, and a floatability of 50% or less.

    摘要翻译: 本发明涉及亲水性超吸收性聚合物,其包含a)约55至约99.9重量% %的含可聚合不饱和酸基团的单体; b)约0.001至约5.0wt。 %的内部交联剂; c)约0.001至约5.0wt。 施加到颗粒表面的表面交联剂的%; 和d)其中所述组合物的中和度大于约20%,并且约20摩尔%至约75摩尔%的所述不饱和酸基团的单体用第一中和剂中和,约5摩尔% 至约40摩尔%的含不饱和酸基团的单体用第二中和剂中和; 在约75℃或更低的温度下。 这样的亲水性超吸收性聚合物的吸收时间为约5 + 10分钟或更大,其中a为超吸收材料的平均粒度,单位为毫米,容量为约15g / g或更大 ,下降穿透值约2秒以下,浮选性为50%以下。

    Superabsorbent polymer with slow absorption times
    8.
    发明申请
    Superabsorbent polymer with slow absorption times 有权
    超吸收性聚合物吸收时间慢

    公开(公告)号:US20050059762A1

    公开(公告)日:2005-03-17

    申请号:US10660982

    申请日:2003-09-12

    IPC分类号: A61L15/60 C08K3/26

    CPC分类号: A61L15/60

    摘要: The invention relates to hydrophilic superabsorbent polymer comprising a) from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; b) from about 0.001 to about 5.0 wt. % of internal crosslinking agent; c) from about 0.001 to about 5.0 wt. % of surface crosslinking agent applied to the particle surface; and d) wherein the composition has a degree of neutralization of more than about 20%, and from about 20 mole % to about 75 mole % of the unsaturated acid group containing monomers are neutralized with a first neutralizing agent, and from about 5 mole % to about 40 mole % of the unsaturated acid group containing monomers are neutralized with a second neutralizing agent; at a temperature of about 75° C. or less. Such hydrophilic superabsorbent polymers have an Absorption Time of about 5+10 a2 minutes or greater, where a is the mean particle size of the superabsorbent material in millimeters, a capacity of about 15 g/g or greater, a Drop Penetration Value of about 2 seconds or less, and a ½ Float Saturation of 50% or less.

    摘要翻译: 本发明涉及亲水性超吸收性聚合物,其包含a)约55至约99.9重量% %的含可聚合不饱和酸基团的单体; b)约0.001至约5.0wt。 %的内部交联剂; c)约0.001至约5.0wt。 施加到颗粒表面的表面交联剂的%; 和d)其中所述组合物的中和度大于约20%,并且约20摩尔%至约75摩尔%的所述不饱和酸基团的单体用第一中和剂中和,约5摩尔% 至约40摩尔%的含不饱和酸基团的单体用第二中和剂中和; 在约75℃或更低的温度下。 这种亲水性超吸收聚合物的吸收时间为约5 + 10 a 2分钟或更大,其中a为超吸收材料的平均粒度,单位为毫米,容量约15g / g或更大,滴穿渗透值 约2秒或更短,½浮动饱和度为50%或更小。

    Superabsorbants with controlled absorption speed
    9.
    发明授权
    Superabsorbants with controlled absorption speed 有权
    超吸收剂具有受控吸收速度

    公开(公告)号:US06395830B1

    公开(公告)日:2002-05-28

    申请号:US09403030

    申请日:1999-10-21

    IPC分类号: C08F832

    摘要: The invention relates to hydrophilic, highly swellable polymers for aqueous fluids, e.g. superabsorbants, which are coated with reactive, water-insoluble, film-forming, hydrophobic polymers and an additional reactive constituent which can react with carboxyl groups of carboxylate anions and form additional cross-links on the particle surface. The invention also relates to the production of superabsorber thus coated and their use in hygiene articles used to absorb body fluids. The products obtained by coating highly swellable, hydrophilic, insoluble polymers with reactive, water-insoluble, film-forming, hydrophobic polymers and an additional reactive component are characterized in that their absorption speed cam be adjusted in an controlled manner extended area according to the type and amount of reactive, water-insoluble, film-forming, hydrophobic polymers used in the coating and according to process engineering conditions chosen for said coating.

    摘要翻译: 本发明涉及用于水性流体的亲水性,高度可溶胀的聚合物,例如, 超吸收剂,其涂覆有反应性,水不溶性,成膜,疏水性聚合物和另外的反应性组分,其可与羧酸根阴离子的羧基反应并在颗粒表面上形成额外的交联。 本发明还涉及如此涂覆的超吸收体的生产及其在用于吸收体液的卫生制品中的用途。 通过用反应性,不溶于水的,成膜的疏水性聚合物和附加的反应性组分涂覆高度可膨胀的,亲水的,不溶的聚合物获得的产物的特征在于它们的吸收速度凸轮根据类型以受控的方式调整延伸面积 以及用于涂层中的反应性,水不溶性,成膜,疏水性聚合物的量以及根据所述涂层选择的工艺工艺条件。