摘要:
The present invention relates to phosphor, arsenic and antimony compounds based upon diaryl-anellated bicyclo`2.2.n! parent substances. The invention also relates to a method for producing the same and a catalyst which comprises at least one complex of a metal pertaining to the VIII. subgroup, whereby said complex has such a compound as the ligand. The invention further relates to the use of said catalysts for hydroformylation, hydrocyanation, carbonylation, hydrogenation, olefin oligomerisation, olefin polymerisation and metathesis.
摘要:
A tetracyclododecene composition having a regulated cyclopentadiene trimer content is used, whereby addition polymerization with the aid of a Ziegler catalyst can be conducted while preventing gelling caused by crosslinking. A tetracyclododecene composition regulated with respect to the content of a specific ingredient having a molecular weight of 188 is used, whereby polymers having high glass transition temperatures can be obtained through various polymerizations. In producing the tetracyclododecene, use of an aliphatic solvent having a boiling point close to that of norbornene is effective in inhibiting the recovered norbornene from solidifying. Preferred for obtaining high-purity tetracyclododecene by removing the methyltetrahydroindene contained in a dicyclopentadiene feedstock is a continuous process comprising a combination of reaction, distillation, recovery/circulation, etc.
摘要:
Naturally-derived compounds having various structures elicit the perception of salty taste, enhance the perception of salty taste of a salt, or act at one or more sodium channels. Food products may include such naturally-derived compounds, which may be used to reduce the sodium content, while imparting a similar level of saltiness.
摘要翻译:提供了可以作为有机半导体材料应用于诸如有机FET和电致发光元件或太阳能电池的电子元件的新型甲基富勒烯衍生物。 具体提供的是由通式(I)表示的甲基富勒烯衍生物,其特征在于,13 C-NMR中C2和C2'的化学位移值的平均值为80.10ppm以上,C2和C2'为存在的碳原子 在富勒烯(FL)上并且与C1结合。 在通式(I)中,FL是富勒烯; X1和X2各自为芳族烃基,烷基等; C2和C2'是存在于FL上且C1键合的碳原子; n是1到10的整数。发明协调发明者可以使用这种方法,例如,半导体器件,半导体器件,电容器,电容器,电容器等。 在加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大,加拿大, C2和C2'sont des atomes de carboneprésentssur unfullerène(FL)etliésàC1。 Dans cette formule,FL est unfullerène; X1和X2 sont chacun un groupe hydrocarbonure aromaticatique,un groupe alkyle ou autre; C2 et C2'sont des atomes de carboneprésentssur FL et auxquels C1 estlié; etn est un entier allant de 1à10。
摘要:
Verfahren zur Herstellung von Polyfluoranthenen enthaltend Wiederholungseinheiten der allgemeinen Formel (I) umfassend: a) Herstellung eines monomeren Fluoranthenderivats der Formel IIa; b) gegebenenfalls Umsetzung des monomeren Fluoranthenderivats der Formel IIa zu einem weiteren monomeren Fluoranthenderivat der Formel IIb; 15 c) Polymerisation des monomeren Fluoranthenderivats der Formel IIa oder IIb, gegebenenfalls gemeinsam mit mindestens einem weiteren Comonomeren; Polyfluoranthene herstellbar nach dem erfindungsgemäßen Verfahren; Filme und eine Licht-emittierende Schicht enthaltend oder bestehend aus mindestens einem erfindungsgemäßen Polyfluoranthen, OLEDs enthaltend mindestens ein erfindungsgemäßes Polyfluoranthen, OLEDs enthaltend eine erfindungsgemäße Licht-emittierende Schicht, eine Vorrichtung enthaltend ein erfindungsgemäßes OLED und die Verwendung der erfindungsgemäßen Polyfluoranthene Emittersubstanzen in OLEDs.
摘要:
A process for producing a Diels-Alder reaction product which comprises heating an olefin compound and a cyclopentadiene and/or dicyclopentadiene to conduct the Diels-Alder reaction, wherein the effective olefin yield is heightened and the apparatus can be stably operated over long while preventing accumulation of polymers of a readily polymerizable ingredient. The process for producing a Diels-Alder reaction product by heating a mixture comprising an olefin compound and a cyclopentadiene derivative is characterized by continuously supplying the mixture to a vertical tank reactor which has a reaction mixture inlet and outlet respectively at the two ends and is equipped inside with a rotating shaft disposed lengthwise and having two or more stirring blades horizontally extending therefrom.
摘要:
A process for producing an unsaturated cyclic compound, comprising the steps of hydrochlorinating a terpene to produce a hydrochlorinated terpene, and subjecting the hydrochlorinate terpene to elimination of hydrogen chloride to form an unsaturated cyclic compound. The terpene is preferably alpha -pinene, beta -pinene, camphene or suitable turpentine fraction. The cyclic compounds can be used as monomers and by means of the invention it is thus possible to produce plastics from renewable raw material sources.
摘要:
Embodiments in accordance with the present invention provide forming various polycycloalkyl polynorbornene polymers and copolymers which are useful for forming pervaporation membranes, the membranes themselves and methods of making such membranes.
摘要:
A process for producing a 1,4-methano-1,4,4a,9a-tetrahydrofluorene composition in which the contents of two cyclopentadiene trimers each having a specific structure are regulated to 100 to 5,000 ppm, which comprises reacting cyclopentadiene and/or dicyclopentadiene with 2 to 50 mol of indene per mol of the diene with heating and purifying the reaction product by distillation. By using the composition as a feed material for various polymerizations, gelation in polymerization is inhibited and resins having excellent optical properties can be obtained.