摘要:
A process for the preparation of electrically conductive products which are stable to air and have conductivities greater than 1 .times.10.sup.-3 S/cm, by reacting a cation of a metal of group VII or VIII or of sub-group I of the periodic table with an organic chelating compound to give a metal chelate and oxidizing the latter to form a oxidized product, wherein the organic chelating compound is a 1,9-substituted phenalene of the formula I ##STR1## where X is O, NH, S, Se or Te and Y is OH, NH.sub.2 or SH. The electrically conductive products are useful for the production of solar cells, the conversion and fixing of radiation, the production of electrical and magnetic switches and the antistatic treatment of plastics.
摘要:
Polymers which have two or more stable, reversibly interconvertible oxidation states with half-wave potentials E.sub.1/2 of from -1.5 to +1 V, and which are obtained when a polymer having a reactive side group is reacted with a 1,9-substituted phenalene, are useful for producing electrically conductive systems, in the electrical industry, and for converting and fixing radiation, for producing electric switches, as electrochromic displays, for providing an antistatic finish on plastics and as reversible redox systems.
摘要:
Polymers which comprise polyene units possessing 5 or more conjugated aliphatic C-C double bonds and contain 1,9-disubstituted phenalenes as chemically bonded side groups are prepared by a process in which acetylene derivatives carrying 1,9-disubstituted phenalene groups are polymerized. The polymers obtained are used in the electrical industry or as reversible redox systems or for the antistatic treatment of plastics.
摘要:
Platelet-shaped colored pigments containing titanium dioxide, one or more suboxides of titanium and an oxide or oxides of one or more metals other than titanium or non-metals and a process for the preparation thereof is disclosed.
摘要:
The present invention relates to the use of end groups Y, where Y stands for CF3O— or F5S—, as hydrophobic end group in surface-active compounds, corresponding novel compounds, and processes for the preparation of these compounds.
摘要:
Compounds are used as catalysts according to general formula (1) M+x(C(SO2CF3)3)x, whereby x is equal to 1 or 2; M represents one hydrogen or alkaline metal atom when x equals 1; and M represents one alkaline-earth metal atom when x equals 2. The invention also relates to a novel Mg compound of formula (1).
摘要:
An electrochemical process for preparing low-chloride aqueous solutions of titanyl nitrate which have a low chloride content, particularly, less than 200 ppm.
摘要:
The present invention relates to the use of end groups Y, where Y stands for CF3O— or F5S—, as hydrophobic end group in surface-active compounds, corresponding novel compounds, and processes for the preparation of these compounds.
摘要:
The invention relates to carbon-containing plate-like pigments, obtainable by pyrolysis of carbon-containing compounds in the presence of either plate-like metal oxides or metal oxide mixtures or plate-like substrates coated with titanium dioxide and at least one further metal oxide under conditions in which the metal of the metal oxide is reduced.
摘要:
Materials coated with plate-like pigments and characterized in that the coating shows structuring in defined areas due to a difference in the orientation of the pigment particles are highly suitable in the area of general security printing.