Water-absorbing, cellular, cross-linked polymers with improved distribution effect, method for their production and their use
    2.
    发明授权
    Water-absorbing, cellular, cross-linked polymers with improved distribution effect, method for their production and their use 失效
    吸水,细胞,交联聚合物具有改善的分布效果,其制备方法及其用途

    公开(公告)号:US06750262B1

    公开(公告)日:2004-06-15

    申请号:US09926110

    申请日:2001-09-04

    IPC分类号: C08J928

    摘要: Water-absorbing, expanded, crosslinked polymers obtainable by (I) foaming a polymerizable aqueous mixture which comprises (a) monoethylenically unsaturated monomers which contain acidic groups and are optionally neutralized, (b) optionally other monoethylenically unsaturated monomers, (c) crosslinkers, (d) initiators, (e) 0.1-20% by weight of at least one surfactant, (f) optionally at least one solubilizer and (g) optionally thickeners, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents, where the foaming takes place by dissolving a gas which is inert to free radicals under a pressure of 2-400 bar in the polymerizable aqueous mixture, and then decompressing the latter to atmospheric pressure, and (II) polymerizing the foamed mixture to form an expanded hydrogel and, where appropriate, adjusting the water content of the expanded polymer to 1-60% by weight, process for preparing the water-absorbing, expanded, crosslinked polymers and use of these polymers in sanitary articles employed for absorbing body fluids, in dressing material for covering wounds, as sealing material, as soil improver, as soil substitute and as packaging material.

    摘要翻译: (I)发泡可聚合水性混合物的吸水膨胀交联聚合物,其包含(a)含有酸性基团并任选中和的单烯属不饱和单体,(b)任选其它单烯属不饱和单体,(c)交联剂, d)引发剂,(e)0.1-20重量%的至少一种表面活性剂,(f)任选的至少一种增溶剂和(g)任选的增稠剂泡沫稳定剂,聚合调节剂,填料和/或细胞成核剂,其中 通过将在2-400巴的压力下对自由基惰性的气体溶解在可聚合的含水混合物中,然后将其减压至大气压来进行发泡,和(II)使发泡混合物聚合以形成膨胀的水凝胶, 在适当的情况下,将发泡聚合物的水含量调节至1-60重量%,制备吸水膨胀交联聚合物的方法,以及在sanitar中使用这些聚合物 用于吸收体液的物品,用于覆盖伤口的敷料材料,作为密封材料,作为土壤改良剂,作为土壤代用品和作为包装材料。

    Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production thereof, and their use
    3.
    发明授权
    Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production thereof, and their use 有权
    泡沫形式的吸水交联聚合物,其制备方法及其应用

    公开(公告)号:US06455600B1

    公开(公告)日:2002-09-24

    申请号:US09623590

    申请日:2000-09-05

    IPC分类号: C08J928

    摘要: A water-absorbing, expanded, crosslinked polymer obtainable by (I) foaming a polymerizable aqueous mixture which comprises (a) monoethylenically unsaturated monomers which contain acidic groups and are optionally neutralized, (b) optionally other monoethylenically unsaturated monomers, (c) crosslinkers, (d) initiators, (e) 0.1-20% by weight of at least one surfactant, (f) optionally at least one solubilizer and (g) optionally thickeners, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents,  where the foaming takes place by dispersing fine bubbles of a gas which is inert to free radicals in the polymerizable aqueous mixture, and (II) polymerizing the foamed mixture to form an expanded hydrogel, whereby at least 20 mol % of the monomers (a) which contain acidic groups have been neutralized with tertiary alkanolamines and/or the free acidic groups of the expanded hydrogel have been at least 20 mol % neutralized with at least one alkalolamine after the polymerization, and, where appropriate, adjusting the water content of the expanded polymer to 1-60% by weight, the production thereof and the use thereof in hygiene articles employed to absorb body fluids and in dressing material for covering wounds.

    摘要翻译: (I)发泡可聚合水性混合物的吸水膨胀交联聚合物,其包含(a)含有酸性基团并任选中和的单烯属不饱和单体,(b)任选的其它单烯属不饱和单体,(c)交联剂, (d)引发剂,(e)0.1-20重量%的至少一种表面活性剂,(f)任选的至少一种增溶剂和(g)任选的增稠剂泡沫稳定剂,聚合调节剂,填料和/或细胞成核剂,其中 通过将可自由基惰性的气体的细小气泡分散在可聚合的含水混合物中,并且(II)使发泡混合物聚合以形成膨胀的水凝胶,从而将至少20mol%的单体(a) 含有酸性基团已经被叔链烷醇胺中和,和/或膨胀的水凝胶的游离酸性基团在聚合后与至少一种烷醇胺中至少20摩尔% 并且在适当的情况下,将发泡聚合物的含水量调节至1-60重量%,其生产以及用于吸收体液的卫生制品和用于覆盖伤口的敷料中的用途。

    Method using a dry fluidized bed for producing thin, absorbent surface structures
    5.
    发明授权
    Method using a dry fluidized bed for producing thin, absorbent surface structures 有权
    使用干燥流化床制造薄的吸收性表面结构的方法

    公开(公告)号:US08063266B2

    公开(公告)日:2011-11-22

    申请号:US11818281

    申请日:2007-06-14

    IPC分类号: A61F13/15 A61F13/20

    摘要: A process for producing thin absorbent planar structures which may be used in hygiene products such as diapers, incontinence products, wound contact materials or sanitary napkins to absorb body fluids, comprises the steps of: A) producing a mixture of an adhesive in dispersion form and a particulate absorbent by fluidizing the components, B) applying the mixture of adhesive and absorbent uniformly to the surface of one side of a first planar backing material, C) one side of a second planar backing material is applied to the mixture of adhesive and absorbent that is present on the surface of one side of the first planar backing material, so producing a sandwichlike intermediate, and D) the sandwichlike intermediate is processed to the end product at a temperature of at least 90° C., a pressure of from 4 to 50 bar, and a pressing time of from 0.5 to 5 min.

    摘要翻译: 用于生产可用于卫生产品如尿布,失禁产品,缠绕接触材料或卫生巾以吸收体液的薄吸收性平面结构的方法包括以下步骤:A)制备分散形式的粘合剂和 通过使组分流态化的颗粒吸收剂,B)将粘合剂和吸收剂的混合物均匀地施加到第一平面背衬材料的一侧的表面,C)将第二平面背衬材料的一侧施加到粘合剂和吸收剂的混合物 其存在于第一平面背衬材料的一侧的表面上,因此产生夹心状的中间体,D)将夹层状中间体在至少90℃的温度下加工成最终产物,压力为4 至50巴,加压时间为0.5至5分钟。

    Method using a dry fluidised bed for producing thin, absorbent surface structures
    6.
    发明授权
    Method using a dry fluidised bed for producing thin, absorbent surface structures 有权
    使用干燥流化床制造薄的吸收性表面结构的方法

    公开(公告)号:US07250093B2

    公开(公告)日:2007-07-31

    申请号:US10467811

    申请日:2002-02-15

    IPC分类号: B32B31/12 B32B31/20 B32B5/16

    摘要: A process for producing thin absorbent planar structures which may be used in hygiene products such as diapers, incontinence products, wound contact materials or sanitary napkins to absorb body fluids, comprises the steps of: A) producing a mixture of an adhesive in dispersion form and a particulate absorbent by fluidizing the components, B) applying the mixture of adhesive and absorbent uniformly to the surface of one side of a first planar backing material, C) one side of a second planar backing material is applied to the mixture of adhesive and absorbent that is present on the surface of one side of the first planar backing material, so producing a sandwichlike intermediate, and D) the sandwichlike intermediate is processed to the end product at a temperature of at least 90° C., a pressure of from 4 to 50 bar, and a pressing time of from 0.5 to 5 min.

    摘要翻译: 用于生产可用于卫生产品如尿布,失禁产品,缠绕接触材料或卫生巾以吸收体液的薄吸收性平面结构的方法包括以下步骤:A)制备分散形式的粘合剂和 通过使组分流态化的颗粒吸收剂,B)将粘合剂和吸收剂的混合物均匀地施加到第一平面背衬材料的一侧的表面,C)将第二平面背衬材料的一侧施加到粘合剂和吸收剂的混合物 其存在于第一平面背衬材料的一侧的表面上,因此产生夹心状的中间体,D)将夹层状中间体在至少90℃的温度下加工成最终产物,压力为4 至50巴,加压时间为0.5至5分钟。

    Preparation of mixtures of diphenylmethane diisocyanates and
polyphenylpolymethylene polyisocyanates having a reduced iodine color
number
    8.
    发明授权
    Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number 失效
    二苯甲基二异氰酸酯和具有降低的碘颜色数的聚苯乙烯聚异氰酸酯的混合物的制备

    公开(公告)号:US5207942A

    公开(公告)日:1993-05-04

    申请号:US653566

    申请日:1991-02-08

    CPC分类号: C07C263/18 C07C263/20

    摘要: Mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (crude MDI) having a reduced iodine color number are prepared by reacting the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylene-polyamines with phosgene in the presence of one or more inert organic solvents at elevated temperatures by a process in which low molecular weight alkanols, polyhydric alcohols, preferably dihydric to octahydric alcohols having a molecular weight of from 60 to 350, or mixtures thereof are incorporated in an effective amount, advantageously in an amount of from 0.01 to 5% by weight, based on the weight of crude MDI, into the reaction mixture after the end of the phosgenation, the phosgene and the inert organic solvent are then separated off, from 0 to 5% by weight, based on the weight of crude MDI, of one or more phenol-based antioxidants and/or aryl phosphite are added to the reaction product, and the reaction mixture is subjected to a thermal treatment.

    摘要翻译: 通过在一个或多个惰性有机溶剂的存在下,在高温下使二苯基甲烷二胺和聚苯基聚亚甲基 - 多胺的相应混合物与光气反应来制备具有降低的碘色数的二苯基甲烷二异氰酸酯和聚苯基聚亚甲基多异氰酸酯(粗MDI)的混合物, 低分子量链烷醇,多元醇,优选分子量为60至350的二元至八元醇或其混合物以有效量引入,有效量为基于重量的0.01至5重量% 的粗MDI,在光气化结束后进入反应混合物中,然后分离出光气和惰性有机溶剂,基于粗MDI的重量计,0至5重量%的一种或多种酚基 将抗氧化剂和/或亚磷酸芳基酯加入到反应产物中,并将反应混合物进行热处理 音乐

    Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number and a reduced chlorine content
    9.
    发明授权
    Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number and a reduced chlorine content 失效
    制备二氯甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯的混合物,其具有降低的碘色数和降低的氯含量

    公开(公告)号:US06229043B1

    公开(公告)日:2001-05-08

    申请号:US08675428

    申请日:1996-06-26

    IPC分类号: C07C24914

    摘要: Mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (raw MDI) having a reduced iodine color number and a reduced chlorine content are prepared by reacting the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phosgene in the presence of at least one inert organic solvent at elevated temperature, and then, after phosgenation is complete, incorporating into the reaction mixture, in the presence or absence of the phosgene, a mixture of water and at least one monohydric or polyhydric polyoxyalkylene alcohol, preferably having a functionality of from 2 to 3, and advantageously having a hydroxyl number of from 20 to 1800, in an effective amount which advantageously comprises from more than 0.01 to 0.3% by weight of water (i) and from 0.5 to 5% by weight of a polyoxyalkylene alcohol (ii), in each case based on the weight of raw MDI, then removing the excess phosgene or the phosgene residues still present and the inert organic solvent, if desired adding to the reaction product up to 5% by weight, based on the weight of raw MDI, of at least one antioxidant based on phenol and/or aryl phosphite and thermally treating the reaction mixture.

    摘要翻译: 通过在高温下,在至少一种惰性有机溶剂的存在下,使二苯基甲烷二胺和多苯基多亚甲基多胺与云气的相应混合物反应,制备具有降低的碘色数和降低的氯含量的二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯(原MDI)的混合物, 然后,在光气化完成后,在光气存在或不存在下将反应混合物加入到水和至少一种一元或多元聚氧化烯醇的混合物中,优选具有2至3的官能度,并且有利地具有 羟基数为20至1800,其有效量包含大于0.01至0.3重量%的水(i)和0.5至5重量%的聚氧化烯醇(ii),在每种情况下基于 原料MDI的重量,然后除去过剩的光气或仍然存在的光气残余物 t有机溶剂,如果需要,加入反应产物至多5重量%,基于原料MDI的重量,至少一种基于酚和/或亚磷酸芳基酯的抗氧化剂,并热处理反应混合物。