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Inventor:
Marraccini; Antonio
Address:
Dormelletto, IT
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
5258110 Process for preparing peroxidic perfluoropolyethers November 2, 1993
A process is disclosed for preparing peroxidic perfluoropolyethers containing perfluoroalkylenoxy units (CF.sub.2 --CF.sub.2 O) and (CF.sub.2 O), which is characterized in that tetrafluoroethylene and oxygen are reacted in a solvent at a temperature not exceeding 50.degree. C. and in
5149842 Process for preparing peroxide perfluoropolyethers September 22, 1992
A process is disclosed for preparing peroxidic perfluoropolyethers comprising perfluoroalkylenoxy units having at least two carbon atoms, characterized in that one or more perfluoroolefins, except tetrafluoroethylene used alone, are reacted with oxygen in the liquid phase at a temper
4996370 Process for preparing fluorinated conjugated olefinic products and new products thus obtained February 26, 1991
Preparing fluorinated conjugated olefinic products having, among others, the formulae:wherein:R.sub.x and R.sub.y represent, among others, a perhalogenated alkyl radical containing from 1 to 10 carbon atoms in the case of R.sub.x and from 1 to 9 carbon atoms in the case of R.sub.y, andm
4947006 Process for preparing fluorinated conjugated olefinic products and new products thus obtained August 7, 1990
Preparing fluorinated conjugated olefinic products having, among others, the formulae:wherein:R.sub.x and R.sub.y represent, among others, a perhalogenated alkyl radical containing from 1 to 10 carbon atoms in the case of R.sub.x and from 1 to 9 carbon atoms in the case of R.sub.y, andm
4801409 Hypofluorites and bis-hypofluorites, and process for preparing same January 31, 1989
Mono- and bis-hypofluorites respectively of formula: FO.sub.2 S--R.sub.f --CF.sub.2 OF and FOCF.sub.2 --R'.sub.f --CF.sub.2 OF wherein R.sub.f is perfluoroalkylene or perfluorochloroalkylene and R'.sub.f is a perfluoroalkylene or perfluorooxyalkylene, and process for preparing them,
4772756 Process for the preparation of fluoroalkyl perfluorovinyl ethers September 20, 1988
A process for the preparation of fluoroalkyl ethers of the formula: ##STR1## wherein: Y is Br or F;X is F, Cl or Br or their mixtures when n is equal to or higher than 2;n is within the range of from 0 to 4;R.sub.f represents a perfluoroalkylene radical containing from 1 to 8 carbon atom
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: ##
4585864 Silanated quinacridone dyes April 29, 1986
Silane quinacridone dyes, composite pigments obtainable therefrom by association with an inorganic substrate, and the processes for preparing them. The dyes have the general formula: ##STR1## wherein X is an --SO.sub.2 NHR group, where R is an alkyl group, linear or branched, hav
4568493 Silanic phtalocyaninic dyes and composite pigments February 4, 1986
There are described silanic phtalocyaninic dyes; composite pigments obtainable by grafting said dyes on an inorganic substrate, and, processes for preparing said dyes and said composite pigments.The dyes are of the following general formula: ##STR1## wherein: Pc is the residue of the










 
 
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