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    • 87. 发明授权
    • Polymeric stabilizers having low polydispersity
    • 具有低多分散性的聚合物稳定剂
    • US06583245B1
    • 2003-06-24
    • US09868762
    • 2001-06-21
    • Alfred SteinmannMichael RothWerner StaufferPeter NesvadbaAndreas Mühlebach
    • Alfred SteinmannMichael RothWerner StaufferPeter NesvadbaAndreas Mühlebach
    • C08F404
    • C08K5/005C08F246/00
    • The present invention relates to a polymerizable composition, comprising a) at least one compound of formula (I) (RG)—A—(Stab)  (I), wherein (Stab) is a light stabilizer radical selected from the group consisting of sterically hindered amines, hydroxyphenyl-s-triazines, hydroxyphenyl-benzotriazols and o-hydroxy-benzophenones; A is a spacer group or a direct bond; and (RG) is a group containing at least one ethylenically unsaturated functional group; and either b1) a compound of formula (II) Y—X  (II),  wherein X represents a group having at least one carbon atom and is such that the free radical derived from X is capable of initiating polymerization and Y represents a group being such that the free radical Y· derived from it forms a stable free radical; or b2) a stable free radical Y· and a free radical source from which a radical is formed capable of initiating polymerization, or b3) a compound of formula (III)  and a catalytically effective amount of an oxidizable transition metal complex catalyst, wherein p represents a number greater than zero and defines the number of initiator fragments; q represents a number greater than zero; [In] represents a radically transferable atom or group capable of initiating polymerization and -[Hal] represents a leaving group; and optionally c) one or more ethylenically unsaturated monomers or oligomers different from those of formula (I). Further subjects of the invention are a polymerization process, the polymers, copolymers oligomers and cooligomers obtainable by this process and the use of the polymers, copolymers oligomers and cooligomers as heat or light stabilizers.
    • 本发明涉及可聚合组合物,其包含a)至少一种式(I)化合物,其中(Stab)是选自空间位阻胺,羟基苯基-s-三嗪,羟基苯基 - 苯并三唑并且 邻羟基 - 二苯甲酮; A是间隔基团或直接键; 和(RG)是含有至少一个烯属不饱和官能团的基团; 和b1)式(II)的化合物,其中X表示具有至少一个碳原子的基团,并且使得衍生自X的自由基能够引发聚合,并且Y表示使得衍生自 它形成一个稳定的自由基; 或b2)稳定的自由基Y.以及自由基源,其中形成能够引发聚合的自由基,或b3)式(III)的化合物和催化有效量的可氧化的过渡金属配合物催化剂,其中p表示 数字大于零并且定义引发剂片段的数量; q表示大于零的数字; [In]表示能够引发聚合的可自由基转移的原子或基团, - [Hal]表示离去基团; 和任选地c)与式(I)的那些不同的一种或多种烯属不饱和单体或低聚物。 本发明的其它主题是聚合方法,可通过该方法获得的聚合物,共聚物低聚物和冷却体,以及聚合物,共聚物低聚物和冷却剂作为热或光稳定剂的用途。
    • 89. 发明授权
    • Method for determining if data item characteristics in periodically
updated and replaced files have unexpectedly changed
    • 用于确定周期性更新和替换的文件中的数据项特征是否意外改变的方法
    • US5857205A
    • 1999-01-05
    • US695871
    • 1996-08-12
    • Michael Roth
    • Michael Roth
    • G06F11/00G06F11/34G06F17/30
    • G06F11/0751G06F11/3452G06F11/3466G06F2201/88Y10S707/99952Y10S707/99953Y10S707/99954
    • A method for verifying computer generated data in periodically updated and replaced files to determine if data item characteristics in the files have changed in an unexpected manner. The method involves the steps of selecting a first version of each of the data item characteristics and selecting a second subsequent version of each of the data item characteristics. The first version of each of the data item characteristics and the second subsequent version of each of the data item characteristics are analyzed to produce first and second statistical profiles. The first and second statistical profiles of each of the data item characteristics are then compared to each other to determine if any of the data item characteristics have changed in an unexpected manner. Finally, the files being periodically updated and replaced are monitored to determine if the data item characteristics in the files have changed in an unexpected manner.
    • 一种用于在周期性更新和替换的文件中验证计算机生成的数据以确定文件中的数据项特征是否以意想不到的方式改变的方法。 该方法包括以下步骤:选择每个数据项特征的第一版本,并选择每个数据项特征的第二后续版本。 分析每个数据项特征的每个数据项特征和第二后续版本的第一版本以产生第一和第二统计概况。 然后将每个数据项特征的第一和第二统计概况相互比较,以确定数据项特征中的任何一个是否以意想不到的方式改变。 最后,监视定期更新和替换的文件,以确定文件中的数据项特征是否以意想不到的方式发生更改。