Abstract:
본 발명은 신규한 고분자수지용 내열첨가제 및 이를 포함하는 고분자수지 조성물에 관한 것으로서, 더욱 상세하게는 특정 구조의 티오화합물을 함유하는 고분자 수지용 내열첨가제 및 이를 포함하는 합성수지에 관한 것이다. 본 발명의 상기 내열첨가제를 포함하는 고분자 수지 조성물은 다른 추가 내열 첨가제의 사용 없이도 200℃ 이상의 고온에서도 열안정성이 매우 우수하며, 상기 내열첨가제는 분자량이 높아 휘발성이 낮은 특성이 있어 친환경적인 고분자 수지의 제조가 가능하다.
Abstract translation:公开了包含由式(1)表示的络合物的乙烯均聚物或乙烯和α-烯烃共聚物催化剂。 (式中n为2或3; R 1和R 2分别为任选取代的烷基或卤素原子; L为由CH 2 R 3,卤原子,OR 4或NR 5 R 6表示的配体; R 3为氢原子, 芳香族基团或三烷基甲硅烷基; R 4为C 1-6低级烷基; R 5和R 6独立地为氢原子或C 1-6低级烷基。)还公开了一种乙烯聚合物的制造方法, ,或在上述催化剂存在下共聚乙烯和α-烯烃。 进一步公开的是在乙烯聚合物中高活性的四齿后茂金属络合物,以及使用含有该络合物的催化剂的乙烯聚合物制备方法。
Abstract translation:公开了一种立体选择性烯烃聚合催化剂,其包括由式(1)表示的络合物。 (式中n为2或3; R 1和R 2分别为任选取代的烷基或卤素原子; L为由CH 2 R 3,卤原子,OR 4或NR 5 R 6表示的配体; R 3为氢原子, 芳基或三烷基甲硅烷基; R 4为C 1-6低级烷基; R 5和R 6独立地为氢原子或C 1-6低级烷基。)还公开了一种立体选择性聚烯烃制备方法,其包括: 烯烃在上述催化剂存在下进行。 所公开的催化剂产生特别高分子量的聚合物,使得能够高度选择性的聚合物,并且能够产生几乎没有分散(Mw / Mn)和尖锐的分子量分布的立体选择性聚烯烃。 还公开了使用该催化剂的立体选择性聚烯烃制造方法。
Abstract:
The present invention provides a method of forming an ion of formula (I) comprising the steps of: (i) reacting a compound of the formula (IIa); with a biopolymer, B P , having at least one group capable of reacting with M to form a covalent linkage, to provide a biopolymer derivative of the formula (IIIa); and (ii) cleaving the C-X bond between X and the α-carbon atom of the derivative of formula (IIIa) to form the ion of formula (I); where: (IV) is a carbon atom bearing a single positive charge or a single negative charge; and X is a group comprising a thioether sulphur atom bound directly to the α-carbon which is capable of being cleaved from the α-carbon atom to form an ion of formula (I). The biopolymer derivatives of the invention have enhanced ionisability with respect to free biopolymer (B P ) enabling improved analysis of the biopolymer using mass spectrometry.
Abstract:
Disclosed is an efficient and widely-applicable method for commercially producing a thioether compound or a thiol compound which is useful as a pharmaceutical product or a production intermediate of a pharmaceutical product. Specifically disclosed is a method for producing a thioether compound represented by the general formula [I] below or a salt thereof. This method is characterized in that a compound represented by the following general formula [III]: [III] (wherein X represents a bromine atom, a chlorine atom or a trifluoromethylsulfonyloxy group, and ring A represents an aryl group or a heteroaryl ring group) or a salt thereof is reacted with a thiol compound represented by the following general formula [II]: [II] or a salt thereof in the presence of a palladium compound such as Pd
Abstract:
The present invention describes pesticidal beta-substituted nitrostyrene and cyanostyrene compounds having the formula I: wherein A,Ar,R,R1,Y,X,k,l, and m are as defined herein. The present invention is directed to compositions that include compounds of formula (I) and a carrier. Moreover, the present invention relates to methods for protecting crops from attack by nematodes by treating the crop with a pesticidally effective amount of the compound of formula (I). In addition, the present invention includes methods for controlling fungus and/or nematodes by treating the target species with a pesticidally effective amount of the compound of Formula (I).
Abstract:
In accordance with the present invention, there are provided modified forms of nonsteroidal anti-inflammatory drugs (NSAIDs). Modified NSAIDs according to the invention provide a new class of anti-inflammatory agent which provides the therapeutic benefits of NSAIDs while causing a much lower incidence of side-effects then typically observed with such agents.
Abstract:
The present invention relates to novel thiol stabilised gold nanoparticles for decorative uses. Methods of their preparation, compositions comprising them and uses of gold nanoparticles and compositions are also described.
Abstract:
Thyroid hormone analogues are disclosed. Methods of using such analogues and pharmaceutical compositions containing them are also disclosed, as are novel procedures for their preparation.
Abstract:
There are provided novel chelating agents useful in the preparation of contrast media for diagnostic imaging or of radiotherapeutic or detoxification compositions.