摘要:
Printing inks are described which utilize a unique class of coloring agents which are the reaction products of free NCO group bearing resins and dyestuffs bearing reactive hydrogens. A novel class of such adducts which contain monocarboxylic acid residues are also described. These printing inks, which may also contain traditional pigments, find particular utility in letterpress or offset printing.
摘要:
The present invention relates to compounds of the general formula (I) wherein Z corresponds a to — a C1-C22-alkyl radical substituted by halogen, phosphonic acid or phosphonic acid ester groups —P(O)(OR1)2 (wherein the radicals R1 can be identical or different and correspond to a hydrogen atom or C1-C12-alkyl), sulphonic acid groups —SO3H, halosilyl radicals —SiHalnR23−n(R2═C1-C18-alkyl, n=an integer from 1 to 3), thiol groups or trialkoxysilyl radicals —Si(OR3)3 (R3═C1-C18-alkyl), — a C5-C12-cycloalkyl radical substituted by halogen, phosphonic acid or phosphonic acid ester groups—P(O) (OR1)2 (wherein the radicals R1 can be identical or different and correspond to a hydrogen atom or C1-C12-alkyl), sulphonic acid groups —SO3H, halosilyl radicals —SiHal−nR23−n(R2═C1-C18-alkyl, n=an integer from 1 to 3), thiol groups or trialkoxysilyl radicals —Si(OR3)3 (R3═C1-C18-alkyl), — a C6-C14-aryl radical or heteroaryl radical from the group of the thienyl, pyrryl, furyl or pyridyl radicals substituted by halogen, phosphonic acid or phosphonic acid ester groups —P(O)(OR1)2 (wherein the radicals R1 can be identical or different and correspond to a hydrogen atom or C1-C12-alkyl), sulphonic acid groups —SO3H, halosilyl radicals —SiHalnR23−n (R2═C1-C18-alkyl, n=an integer from 1 to 3), thiol groups or trialkoxysilyl radicals —Si(OR3)3 (R3═C1-C18-alkyl), or — a C7-C30-aralkyl radical optionally substituted by halogen, phosphonic acid or phosphonic acid ester groups —P(O)(OR1)2 (wherein the radicals R1 can be identical or different and correspond to a hydrogen atom or C1-C12-alkyl), sulphonic acid groups —SO3H, halosilyl radicals —SiHalnR23−n (R2═C1-C18-alkyl, n=an integer from 1 to 3), thiol groups or trialkoxysilyl radicals —Si(OR3)3 (R3═C1-C18-alkyl) or a trialkylsilyl radical R5R6R7Si, in which R5, R6, R7 independently of each other are identical or different C1-C18-alkyl radicals. The present invention also relates to a semiconductor layer, an electronic component, a process for the production of an electronic component, the electronic component obtainable by this process and the use of compounds of the general formula (I).
摘要:
The present invention relates to specific, novel tantalum and niobium compounds which can serve as starting materials for the preparation of chemical vapour deposition (CVD) precursors.
摘要:
Processes for preparing high-purity niobium alkoxides, especially niobium ethoxide, are described which include: (a) providing a crude niobium alkoxide starting material comprising at least one compound of the general formula (I) Nb(OR)5 (I) wherein each R independently represents a linear or branched C1-12 alkyl group; and (b) contacting the crude niobium alkoxide starting material with a treatment medium comprising a component selected from the group consisting of (i) one or more alcohols of the general formula (II) in an amount of 0.01 to 5% by weight, (ii) air or an oxygen-containing gas, and (iii) combinations thereof; R1OH (II) wherein each R1 independently represents a linear or branched C1-12 alkyl group.
摘要:
Methods of stabilizing thiophene derivatives of the general formula (I) by treatment with basic compounds: wherein R1 and R2 each independently represents a moiety selected from the group consisting of hydrogen, optionally substituted C1-20 alkyl groups which can contain up to 5 heteroatoms selected from the group consisting of oxygen and sulfur, optionally substituted C1-20 oxyalkyl groups which can contain up to 5 heteroatoms selected from the group consisting of oxygen and sulfur, or wherein R1 and R2 together represent a fused cyclic moiety selected from the group consisting of optionally substituted C1-20 dioxyalkylene groups and C1-20 dioxyarylene groups; and stabilized thiophene derivatives that can be prepared by such methods.
摘要:
A novel process for the preparation of high-purity zirconium, hafnium, tantalum and niobium alkoxides (alcoholates), novel tantalum and niobium compounds and a process for their preparation are provided. The process comprises the steps of mixing crude metal alkoxides M(OR)x having a halogen impurity of at least 0.05 wt. %, with an alcohol ROH, in which R is a C1-C12-alkyl radical, and subsequently or simultaneously metering in an excess of ammonia, based on the amount of mononuclear or polynuclear halogen-containing metal alkoxides.
摘要:
The invention relates to phosphorescent or luminescent conjugated polymers, whose emission is based on the phosphorescence of covalently bonded metal complexes, optionally combined with the fluorescence of the polymer chain. The invention also relates to a method for producing said polymers and to their use in electroluminescent assemblies.
摘要:
The present invention relates to mixtures, containing A) reaction products from isocyanates and NCO-reactive silanes and B) carbosilane dendrimers, a process for preparing powder coatings from the mixtures and their use.
摘要:
Dye-donor element for use according to thermal dye sublimation transfer comprising a support having on one side a dye layer and on the other side a heat-resistant layer, characterized in that said heat-resistant layer comprises a polyether containing at least 10 mol % recurring units corresponding to the following formula (I)O--E--O--E'-- (I)wherein--O--E--O-- represents a divalent diphenolate radical corresponding to the following general formula (II) ##STR1## wherein R.sub.1 and R.sub.2 (same or different) represent hydrogen, halogen, a C.sub.1 -C.sub.8 alkyl group, a C.sub.5 -C.sub.6 cycloalkyl group, a C.sub.6 -C.sub.10 aryl group or a C.sub.7 -C.sub.12 aralkyl group; andX represents the necessary atoms to close a 5- to 8-membered cycloaliphatic ring which may be substituted with one or more C.sub.1 -C.sub.6 alkyl groups or 5- to 6-membered cycloalkyl groups or carry fused-on 5- or 6-membered cycloalkyl groups;--E'-- represents a divalent radical of an aromatic sulfone corresponding to the following general formula (III) ##STR2## or a divalent radical of a diarylketone corresponding to the following general formula (IV) ##STR3## or a divalent radical of benzonitrile corresponding to the following general formula (V) ##STR4## wherein Ar and Ar' in formula III and IV (same or different) represent difunctional aromatic radicals having 6 to 50 carbon atoms.
摘要:
Process for producing a capacitor anode based on at least one of a valve metal and a compound having properties comparable to a valve metal includes providing a pressing or cutting tool which is at least one of made of and coated with a pressing or cutting tool material comprising at least one of a metal carbide, an oxide, a boride, a nitride, a silicide, a carbonitride or alloys thereof, a ceramic material, a hardened steel, an alloy steel, and a capacitor anode material. Particles of the at least one of a valve metal and a compound having properties comparable to a valve metal are pressed or cut with the pressing or cutting tool so as to produce a porous electrode body and form the capacitor anode.