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    • 3. 发明授权
    • Dry neutralization process for organic liquid phases
    • 有机液相干燥中和过程
    • US5210281A
    • 1993-05-11
    • US720444
    • 1991-08-23
    • Wolfgang RitterHans-Dieter SitzLudwig Speitkamp
    • Wolfgang RitterHans-Dieter SitzLudwig Speitkamp
    • C07C67/48C07B63/00C07C69/48C07C69/54
    • C07C67/56
    • The invention relates to a process for the production of pure, substantially neutral, low-volatility organic compounds containing reactive olefinic double bonds from starting materials which contain these components together with small quantities of acidic reaction constituents and/or corresponding auxiliaries in the liquid phase by neutralization and separation of the salts formed. The process according to the invention is characterized in that, to obtain pure products which combine low residual acid values with low color standard numbers, even without distillation, the neutralization is carried out as dry neutralization using solid, finely powdered oxides, carbonates and/or hydroxides of the alkali and/or alkaline earth metals, if desired together with other insoluble basic metal oxide compounds, and the organic liquid phase is subsequently separated from the finely powdered solid phase. The oxides and/or hydroxides of calcium and/or magnesium are preferably used for neutralization.
    • PCT No.PCT / EP89 / 01547 Sec。 371日期1991年8月23日 102(e)日期1991年8月23日PCT提交1989年12月15日PCT公布。 出版物WO90 / 07484 日本1990年7月12日。本发明涉及一种生产纯的,基本上中性的低挥发性有机化合物的方法,该有机化合物含有起始原料的反应性烯属双键,其含有这些组分以及少量酸性反应组分和/或 相应的助剂在液相中中和形成的盐分离。 根据本发明的方法的特征在于,为了获得将低残留酸值与低颜色标准数相结合的纯产品,即使不蒸馏,中和作为干中和进行,使用固体,细粉末状氧化物,碳酸酯和/或 如果需要,碱金属和/或碱土金属的氢氧化物与其它不溶性碱性金属氧化物化合物一起,随后将有机液相与细粉状固相分离。 钙和/或镁的氧化物和/或氢氧化物优选用于中和。
    • 4. 发明授权
    • Reactive systems and/or polymer composition for tissue contact with the
living body
    • 组织与活体接触的活性体系和/或聚合物组合物
    • US5461124A
    • 1995-10-24
    • US220409
    • 1994-03-30
    • Wolfgang RitterHans-Dieter Sitz
    • Wolfgang RitterHans-Dieter Sitz
    • A61L24/00A61L24/06C08F2/38A61L25/00C08K5/15
    • A61L24/0015A61L24/06A61L2300/428
    • Described is the use of physiologically compatible tocopherols and especially of vitamin E as an inhibitor against premature polymerization initiation in reactive systems capable of undergoing a free radical-initiated polymerization, which systems before and/or after the polymerization thereof are placed in tissue contact with the living human or animal body and, more specifically, are implanted into the living organism thereby. The reactive systems and the polymers formed therefrom may be degradation resistant. However, a special embodiment relates to compositions or molded bodies which are decomposed by the living organism, and especially so under time-controlled conditions. The invention further relates to surgical binder systems which are suitable for adhesion bonding endogenous body tissue and which have been based on an adhesive component capable of being activated by free radicals, said adhesive component being present in admixture with a free radical inhibitor and being characterized in that the inhibitor or at least the predominant portion of the inhibitor is vitamin E. It is preferred that the described compositions are free from physiologically unacceptable solvents or residual amounts of solvents left from the preparation process.
    • 描述了生理上相容的生育酚,特别是维生素E作为抑制抗过敏引发反应体系的能够进行自由基引发聚合的抑制剂的用途,该反应体系在其聚合之前和/或之后与其组合接触 活的人或动物体,更具体地,植入生物体中。 反应体系和由其形成的聚合物可以是耐劣化的。 然而,一个特殊的实施方案涉及由活体分解的组合物或模塑体,特别是在时间控制的条件下。 本发明还涉及适于粘附内源性身体组织并且基于能够被自由基活化的粘合剂组分的外科粘合剂体系,所述粘合剂组分与自由基抑制剂混合存在,其特征在于 抑制剂或至少主要部分的抑制剂是维生素E。优选所述组合物不含生理上不可接受的溶剂或从制备过程中残留的溶剂残留量。
    • 8. 发明授权
    • Process for exchanging inhibitor(s) in olefinically unsaturated systems
which are reactive via free radicals
    • 在通过自由基反应的烯属不饱和体系中交换抑制剂的方法
    • US5278336A
    • 1994-01-11
    • US859429
    • 1992-09-24
    • Hans-Dieter SitzWolfgang Ritter
    • Hans-Dieter SitzWolfgang Ritter
    • C07C67/62C07C67/56C07C69/54C08F2/40C07C69/74
    • C07C67/62
    • The invention describes a process for the partial or complete exchange of the free radical inhibitors (preparation inhibitor) from their admixtures with free radical-reactive--and especially polymerizable and/or cross-linkable--olefinically mono- and/or polyunsaturated compounds against free radical inhibitors or inhibitor systems (application inhibitor), the kind and amount of which are freely determinable. The process according to the invention is characterized in that admixtures reactive via free radicals are employed which contain, as the preparation inhibitor, appropriate compounds of the phenol type comprising hydroxyl groups capable of forming salts, this feedstock mixture as a liquid phase is subjected to a treatment with solid oxides, carbonates and/or hydroxides of the alkali metals and/or alkaline earth metals, which may also be present in admixture with further oxidic metal compounds, thereby in a pre-determinable manner binding all or part of the preparation inhibitor to the solid phase, the resulting solid phase is separated from the liquid phase, and the content of the application inhibitor in this liquid phase is adjusted with respect to kind an amount thereof. The process is preferably applied to free radical-reactive substance mixtures, from which the preparation inhibitors contained therein cannot be satisfactorily removed by way of a distillation.
    • PCT No.PCT / EP90 / 01976 Sec。 371日期:1992年7月24日 102(e)日期1992年7月24日PCT 1990年11月19日PCT PCT。 出版物WO91 / 08192 日本1991年6月13日。本发明描述了将自由基抑制剂(制剂抑制剂)与其与自由基反应性特别是可聚合和/或可交联烯属单体和/或可交联烯烃的混合物的混合物部分或完全交换的方法 /或针对自由基抑制剂或抑制剂体系的多不饱和化合物(应用抑制剂),其种类和量可自由确定。 根据本发明的方法的特征在于,使用通过自由基反应的混合物,其含有作为制剂抑制剂的包含能够形成盐的羟基的酚类的适当化合物,将作为液相的原料混合物经受 用碱金属和/或碱土金属的固体氧化物,碳酸盐和/或氢氧化物处理,其还可以与其它氧化金属化合物混合存在,从而以预定的方式将所有或部分制剂抑制剂与 固相,将所得到的固相与液相分离,并且将该液相中的施加抑制剂的含量相对于其种类进行调整。 该方法优选应用于自由基反应性物质混合物,其中含有的制剂抑制剂不能通过蒸馏令人满意地除去。