Phenyltrimethylammonium Tribromide for Selective Oxidation of Sulfides to Sulfoxides. A Convenient Synthesis of Sulfinyl-18O-Labelled Sulfoxide Carboxylic Acids
NOVEL PIPERAZINE DERIVATIVES AS INHIBITORS OF STEAROYL-CoA DESATURASE
申请人:BISCHOFF Alexander
公开号:US20090221583A1
公开(公告)日:2009-09-03
The present invention relates to piperazine derivatives that act as inhibitors of stearoyl-CoA desaturase. The invention also relates to methods of preparing the compounds, compositions containing the compounds, and to methods of treatment using the compounds.
The invention relates to compounds of formula (I) wherein R
1
, R
2
, X
1
, X
2
, Y, R
a
, R
b
, Q have the meanings given in claim
1
. The compounds are useful e.g. in the treatment of autoimmune disorders, such as multiple sclerosis and also in the treatment of cancer disorders.
Polyamide-imide resins and process of producing them
申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0472421A2
公开(公告)日:1992-02-26
Melt moldable polyamide-imide resins are disclosed which have a glass transition temperature ranging from 120 to 300°C and have molecule ends blocked with an unsubstituted aromatic group or an aromatic group having a substituent not reactive with amines, isocyanates, carboxylic acids and dicarboxylic acid anhydrides, said end-blocking group for instance being derived from phthalic anhydride and benzoic acid.
Such resins are obtainable by reacting together an aromatic tricarboxylic acid, anhydride, an aliphatic or araliphatic diisocyanate, an aromatic diisocyanate, and at least one end-blocking agent as aforesaid, the reactants being reacted at a temperature of 180°C or higher in the presence of an alkali metal compound as a catalyst in a dipolar aprotic solvent.
SURFACE-TREATED CARBON NANOTUBE AND RESIN COMPOSITION
申请人:Asahi Kasei Chemicals Corporation
公开号:EP2824069A1
公开(公告)日:2015-01-14
Provided is a surface-treated carbon nanotube having few surface fractures, not reducing the molecular weight of the resin to be mixed and having excellent extrudability. In the surface-treated carbon nanotube, the thermal reduction amount at 600°C in a nitrogen atmosphere is 0.2 to 40%, the surface oxygen concentration measured by X-ray photoelectron spectroscopy (XPS) is 1.5 to 40 atm% and the surface sulfur concentration is less than 0.1 atm%.
Surface-treated carbon nanotube and resin composition
申请人:ASAHI KASEI CHEMICALS CORPORATION
公开号:US10479853B2
公开(公告)日:2019-11-19
Provided is a surface-treated carbon nanotube having few surface fractures, not reducing the molecular weight of the resin to be mixed and having excellent extrudability. In the surface-treated carbon nanotube, the thermal reduction amount at 600° C. in a nitrogen atmosphere is 0.2 to 40%, the surface oxygen concentration measured by X-ray photoelectron spectroscopy (XPS) is 1.5 to 40 atm % and the surface sulfur concentration is less than 0.1 atm %.
本发明提供了一种表面处理过的碳纳米管,其表面断裂少,不会降低待混合树脂的分子量,挤出性极佳。在表面处理过的碳纳米管中,在 600° C 的氮气环境中的热还原量为 0.2 至 40%,用 X 射线光电子能谱(XPS)测量的表面氧浓度为 1.5 至 40 atm %,表面硫浓度小于 0.1 atm %。