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Class 987/23 - BISMUTH COMPOUNDS (9/94)


Subclass of Class 987 - Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system
Definition: Subject matter drawn to organic compounds wherein bismuth
No. of patents: 11
Last issue date: 09/04/1990


NumberTitleIssue Date
4954551Halogen-containing organometallic compounds
This invention relates to a compound of the formula, ##STR1## wherein: M is Sb(III) or Bi(III), x and y are whole integers and x=1, 2 or 3, y=0, 1 or 2 and x+y=3; each R is independently selected from hydroxy radicals, alkoxy radicals and phenoxy rad...
09/04/1990
4879416Preparation of bidentate ligands
The process for preparing a bidentate ligand comprising the steps, (1) contacting with ozone under ozonolysis conditions a suspension in a hydroxylic reaction medium of phenanthrene or a phenanthrene derivative to form an ozonated intermediate, (2) contacting ...
11/07/1989
4798857Complexes of bismuth or antimony halides with amines, suitable as flame retardants for polymers, and polymer compositions containing same
Disclosed are complexes of bismuth or antimony halides with amines having formula: where R is dicyandiamide, guanamine, 2-guanidinobenz-imidazole, isophoronediamine, piperazine, melamine or a compound having from 2 to 9 triazine rings condensed or linked ...
01/17/1989
4772296Method of purifying and depositing group IIIa and group Va compounds to produce epitaxial films
Thermally decomposable Group IIIa compounds are purified by conveying the relatively impure material through a prescrubber module, then heating the scrubbed Group IIIa compound and conveying same through a preconditioned gas chromatographic column packed ...
09/20/1988
4734514Hydrocarbon-substituted analogs of phosphine and arsine, particularly for metal organic chemical vapor deposition
Organometallic compounds having the formulas: ##STR1## wherein N is selected from phosphorus and arsenic, H is hydride, and X and Y are independently selected from hydride, lower alkyl cyclopentadienyl, and phenyl, except that Y cannot be hydrogen; a...
03/29/1988
4720560Hybrid organometallic compounds, particularly for metal organic chemical vapor deposition
Compounds having the molecular formula: wherein x is an integer from 2 to 4 inclusive, each said R substituent is independently selected from hydride, lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl substituted cyclopentadienyl,...
01/19/1988
4611071Metal alkyl process
Metal alkyls such as trimethyl arsine are made in improved yields by reacting a metal halide, e.g. AsCl3, with a Grignard reagent such as methyl magnesium bromide complexed with a polyether such as di(2-methoxyethyl)ether....
09/09/1986
4331518Bismuth composition, method of electroplating a tin-bismuth alloy and electroplating bath therefor
An improved electrotinplating process and acidic electroplating bath therefor is disclosed. The acidic electroplating bath contains tin ions and a chelate salt comprising an acid bismuth sulfate gluconate. An improved electrotinplating process is therefor...
05/25/1982
4215136Insoluble metal salts of N-acetyl-tryptophane and use thereof
The invention concerns: novel insoluble derivatives of N-acetyl-tryptophane characterized by the following general formula: ##STR1## in which: M represents an atom of aluminium, of titanium or of bismuth of valency m, p and q are whole numbers, at le...
07/29/1980
4148912Pharmaceutical compositions and methods of using the same
The present application relates to pharmaceutical compositions incorporating as active ingredient p.chlorohippuric acid or one of its mineral or organic base addition salts. The pharmaceutical compositions are those adapted for parenteral or oral administ...
04/10/1979
3962298Preparation of highly soluble bismuth salts of organic alkanoic acids
Highly soluble bismuth salts of organic alkanoic acids are prepared by reacting an organic triaryl bismuth compound with an alkanoic acid in an inert organic solvent, and, after essential completion of the reaction, removing the inert organic solvent to a...
06/08/1976
 
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