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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Bottaccio; Giorgio
Address:
Novara, IT
No. of patents:
11
Patents:












Patent Number Title Of Patent Date Issued
5138047 Catalytic process for the manufacture of copper phthalocyanine August 11, 1992
This invention relates to improved catalytic process for the manufacture of copper phthalocyanine by allowing phthalic anhydride to react with urea and a copper compound, in the presence of a hydrophobic liquid (dispersing agent), characterized by the presence, along with the catalyst an
4954643 Process for preparation of perfluoropropane oxide September 4, 1990
An improved process for the preparation of perfluoropropene oxide by the reaction of perfluoropropene with hydrogen peroxide in an aqueous alkaline medium is described. The improved process is characterized by carrying out the reaction in the presence of a phase-transfer catalyst selecte
4655843 Silane diimidic tetracarboxylic perylene dyes and composite pigments April 7, 1987
Silane diimidic tetracarboxylic perylene dyes, the composite pigments obtainable therefrom by means of grafting onto an inorganic substrate, and the processes for preparing same.The dyes have the general formula: ##STR1## in which R is the residue of a silane group of formula: ##
4613667 Silane diimidic tetracarboxylic perylene dyes September 23, 1986
Silane diimidic tetracarboxylic perylene dyes, the composite pigments obtainable therefrom by means of grafting onto an inorganic substrate, and the processes for preparing same.The dyes have the general formula: ##STR1## in which R is the residue of a silane group of formula: ##
4549025 Process for oxidizing aldehydes to carboxylic acids October 22, 1985
Carboxylic acids having the general formula:wherein R is selected from the group consisting of aryl, aralkyl, aralkenyl, aralkynyl, heteroaryl, heteroarylalkyl, heteroarylalkenyl, heteroarylalkynyl, alkyl, alkenyl and alkynyl, optionally substituted by inert or non-reactive substituents
4523953 Photostable yellow composite pigments and process for their preparation June 18, 1985
There are described organic-inorganic ternary composite pigments consisting of 70%-90% by weight of an inorganic binary titanium dioxide/aluminum hydrate component and, from 10% to 30% by weight, of a co-precipitated organic component consisting of an organic dye, containing in its s
4486237 Composite pigments and process for their preparation December 4, 1984
Novel composite pigments containing both organic and inorganic portions have been produced.These pigments consist of an inorganic binary titanium dioxide/aluminum hydrate component, in a percent quantity comprised between 70% and 95% by weight, the remaining organic component amounting t
4132732 Process for preparing alpha-formyl acids January 2, 1979
Alpha-formyl acids are prepared by carboxylation of aldehydes in the presence of unsubstituted or substituted alkaline phenates, and of aprotic organic solvents.
4113973 Process for the preparation of anhydrous solutions of alkaline phenates in organic solvents September 12, 1978
A process is disclosed for the preparation of anhydrous solutions of alkaline phenates in organic solvents, comprising the steps:(a) synthesis in water of alkaline phenates by the reaction of sodium sulphate or potassium sulphate with calcium hydroxide and a phenol of the general formula
4032555 Process for the carboxylation of organic substrates with carbon dioxide June 28, 1977
A process is disclosed for the carboxylation of organic substrates or reactants containing at least one active hydrogen atom by reaction with CO.sub.2 and alkaline phenates in an organic medium, characterized in that the reaction is conducted in the presence of simple or substituted
3976677 Process for carboxylating organic substrates with carbon dioxide in hydrocarbon solvents August 24, 1976
Carboxylable substrates i.e., ketones, esters, nitroparaffins and nitriles, containing activated hydrogen atoms are carboxylated by reaction with alkaline phenates and CO.sub.2 in at least one hydrocarbon solvent selected from aliphatic, alicyclic, aromatic and alkyl-aromatic hydroca










 
 
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