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    • 1. 发明申请
    • POLYMERIZED HYDROGEL COMPRISING LOW AMOUNTS OF RESIDUAL MONOMERS AND BY-PRODUCTS
    • 包含残留单体和副产物的低聚合物的聚合氢化物
    • WO2004003024A1
    • 2004-01-08
    • PCT/US2003/020702
    • 2003-07-01
    • THE PROCTER & GAMBLE COMPANYBASF AKTIENGESELLSCHAFT
    • MERRIGAN, Steven, RaySCHECHTMAN, Lee, ArnoldGOLDMAN, Stephen, AllenBECK, MartinGOERTH, FelixWEIDL, Christian, H.FRENZ, VolkerSTEPHAN, Oskar
    • C08F6/00
    • A61L15/58A61L15/60C08F6/006C08F220/06C08F2220/585C08F220/56C08F216/34
    • The present invention relates to a process for making polymerized hydrogel, in particular adhesives, which are characterized by very low amount of residual starting monomer(s), impurity(s) and/or by-products which could be formed during polymerization, such as acrylamide, acrylonitrile or acrolein. After a first polymerization step, which is conducted from a reaction medium comprising starting monomer(s) and at least one polyol, the resulting hydrogel is then post-treated with a compound which chemically reacts with said residual monomer(s), impurity(s)and/or with said by-products the said polymerization could produce, to thereby reduce said residual starting monomer(s), impurity(s) and/or said by-products within said hydrogel.The present invention also relates to polymerized hydrogels, in particular adhesives, comprising 10-90 wt% water, 10-60 wt% cross-linked hydrophilic polymer made from starting monomer(s) comprising acrylic acid, and 10-80 wt% of at least one polyol, such hydrogel being prepared by polymerizing said starting monomer(s) in the presence of said water and said polyol(s), wherein such hydrogels contain less than 500 ppb, preferably less than 100 ppb, more preferably less than 50 ppb and most preferably less than 20 ppb of a,b-unsaturated carbonyl by-product(s) derived from said polyol(s) during polymerization, and wherein the level of residual starting monomer(s) is below 200 ppm, preferably below 100 ppm, more preferably below 50 ppm, even more preferably below 20 ppm, and most preferably below 10 ppm.
    • 本发明涉及一种制备聚合水凝胶,特别是粘合剂的方法,其特征在于非常少量的残余起始单体,可在聚合过程中形成的杂质和/或副产物,例如 丙烯酰胺,丙烯腈或丙烯醛。 在由包含起始单体和至少一种多元醇的反应介质进行的第一聚合步骤之后,然后将所得水凝胶用化合物与所述残留单体进行后处理,杂质(s )和/或所述聚合可产生的所述副产物,从而减少所述水凝胶内的所述残留起始单体,杂质和/或所述副产物。本发明还涉及聚合的水凝胶, 特别是包含10-90重量%水,10-60重量%由包含丙烯酸的起始单体制备的交联亲水聚合物和10-80重量%的至少一种多元醇的粘合剂,所述水凝胶由 在所述水和所述多元醇的存在下聚合所述起始单体,其中这种水凝胶含有小于500ppb,优选小于100ppb,更优选小于50ppb,最优选小于20ppb的 ,b-不饱和羰基副产物d 在聚合期间从所述多元醇中洗脱,并且其中残余起始单体的含量低于200ppm,优选低于100ppm,更优选低于50ppm,甚至更优选低于20ppm,最优选低于10ppm 。
    • 6. 发明申请
    • PROCESS FOR PREPARING HYDROGEL SKIN ADHESIVE UNDER LOW OXYGEN CONDITIONS
    • 在低氧条件下制备羟丙基胶粘剂的方法
    • WO2005054306A1
    • 2005-06-16
    • PCT/EP2004/013146
    • 2004-11-19
    • BASF AktiengesellschaftGÖRTH, Felix ChristianWEIDL, Christian HubertFRENZ, VolkerSTEPHAN, Oskar
    • GÖRTH, Felix ChristianWEIDL, Christian HubertFRENZ, VolkerSTEPHAN, Oskar
    • C08F2/01
    • C08F20/04A61L26/008C08F2/10
    • Abstract The present invention relates to a process of making polymerized hydrogels, in particular hydrogel adhesives which e.g. are capable of attaching to mammalian skin and can be used in various personal care products, such as waste-management articles, cosmetic and medical devices and a variety of functional articles to be worn by a human. The process described herein is characterized by influencing the adhesiveness by varying the oxygen content of the atmosphere present during the polymerization. Utilizing this method it is possible to influence one performance parameter (adhesiveness) independently from the others (e.g. rheology behaviour). This opens ways to a more easy and more flexible production of such hydrogels. In addition it is possible to obtain hydrogels with a combination of rheology and adhesiveness properties that were not or not so easily obtainable by conventional means. Lowering the oxygen content of the atmosphere at the polymerization zone also gives an additional benefit in lowering the amount of residual monomer(s).
    • 摘要本发明涉及一种制备聚合水凝胶的方法,特别是水凝胶粘合剂, 能够附着于哺乳动物皮肤,并可用于各种个人护理产品,例如废物处理用品,化妆品和医疗装置以及人类所穿的各种功能性物品。 本文所述的方法的特征在于通过改变聚合期间存在的气氛的氧含量来影响粘附性。 利用该方法,可以独立于其它方式影响一个性能参数(粘合性)(例如流变行为)。 这开创了一种更容易和更灵活地生产这种水凝胶的方法。 此外,可以获得具有通过常规方法不容易获得的流变性和粘合性的组合的水凝胶。 在聚合区域降低气氛的氧含量也可以降低残留单体的量带来额外的益处。
    • 9. 发明公开
    • COMPOSITE SUITABLE FOR USE IN ELECTROCHEMICAL CELLS
    • GEEIGNETER KOMPOSIT ZUR VENWENDUNG在ELEKTROCHEMISCHEN ZELLEN
    • EP1029382A1
    • 2000-08-23
    • EP98955417.5
    • 1998-10-08
    • BASF AKTIENGESELLSCHAFTGS Japan Storage
    • BAUER, StephanBRONSTERT, BerndMÖHWALD, HelmutSTEPHAN, OskarTUKAMOTO, Hisashi
    • H01M10/40
    • H01M4/13C09K9/02H01G9/02H01G9/04H01M2/164H01M2/1673H01M4/0435H01M4/485H01M4/62H01M4/622H01M6/188H01M6/40H01M10/0525H01M10/0565H01M10/0569H01M2300/0085
    • A composite comprises Aa) at least one first layer which comprises a mixture Ia, comprising a mix IIa consisting of a) from 1 to 95 % by weight of a solid III, preferably a basic solid III, having a primary particle size of from 5 nm to 20 νm and b) from 5 to 99 % by weight of a polymeric composition IV obtainable by polymerization of b1) from 5 to 100 % by weight, based on the composition IV, of a condensation product V of α) at least one compound VI which is able to react with a carboxylic acid or a sulfonic acid or a derivative or a mixture of two or more thereof, and β) at least 1 mol per mol of the compound VI of a carboxylic acid or sulfonic acid VII which contains at least one free-radically polymerizable functional group, or a derivative thereof or a mixture of two or more thereof, and b2) from 0 to 95 % by weight, based on the composition IV, of a further compound VIII having a mean molecular weight (number average) of at least 5000 and polyether segments in the main chain or a side chain, where the proportion by weight of the mix IIa in the mixture Ia is from 1 to 100 % by weight, and the layer is free of an electron-conducting, electrochemically active compound, and B) at least one second layer which comprises an electron-conducting, electrochemically active compound, wherein the first layer or layers and the second layer or layers are joined to one another by one of the two methods V1 or V2: V1) Lamination of the first layer or layers with the second layer or layers under the action of heat or pressure or under the action of heat and pressure, or V2 Corona treatment of the first layer or layers, the second layer or layers or the first layer or layers and the second layer or layers and subsequent bringing together of the corona-treated first layer or layers with the corona-treated or untreated second layer or layers.
    • 复合材料包括Aa)至少一个包含混合物Ia的第一层,其包含混合物IIa,混合物IIa由以下组分组成:a)1至95重量%的固体III,优选碱性固体III,其初级粒度为5 nm至20μm,b)5至99重量%的聚合物组合物IV,其可通过以b1)5至100重量%(基于组合物IV)将α的缩合产物V至少 一种化合物VI,其能够与羧酸或磺酸或其两种或多种的衍生物或其混合物反应,并且β)至少1mol / mol化合物VI的羧酸或磺酸VII,其中 含有至少一个可自由基聚合的官能团,或其衍生物或其两种或多种的混合物,和b2)基于组合物IV为0至95重量%的另一种化合物VIII,其具有平均分子量 重量(数均)至少5000和聚醚片段在。 n链或侧链,其中混合物Ia中混合物IIa的重量比例为1至100重量%,该层不含电子传导的电化学活性化合物,B)至少一个 第二层,其包括电子传导的电化学活性化合物,其中第一层或第二层或第二层或两层通过两种方法V1或V2之一彼此连接:V1)将第一层或多层与 在热或压力作用下或在热和压力的作用下的第二层或第二层或V2电晕处理第一层或第二层或第二层或第一层或第二层或第二层或第二层或第二层或 随后将电晕处理的第一层或多层与电晕处理或未经处理的第二层或多层组合在一起。