Patents by Inventor Marino Quaglino

Marino Quaglino has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the purification of polyphenylene ethers
    Patent number: 4577010
    Abstract: Polyphenylene ethers, prepared by oxidative polycondensation of alkylphenols, in the presence of copper-amine catalysts, are decolorized from the reaction by-products and purified from the residues of catalytic copper by treatment, in an acid medium, with one or more thiolic compounds comprised in the general formula.R--(SH).sub.nwherein:n=a whole number ranging between 1 and 6, extremes includedR=an alkyl, an aryl, an alkaryl, an aralkyl, a cycloalkyl, a heterocyclic group, a hydrocarbon radical having several non-condensed benzene rings, optionally substituted by alkyl and/or alkoxy, hydroxy, aminic, sulphonic, carboxylic, nitric, sulphydrilic radicals, halogens.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: March 18, 1986
    Assignee: Montedison S.p.A.
    Inventors: Nicola Bottazzini, Marino Quaglino
  • Process for removing soluble boron compounds from aqueous effluents
    Patent number: 4402835
    Abstract: Disclosed is a process for removing boron compounds from aqueous effluents. The effluents are contacted, under stirring, with a divalent metal sulphate Me.sub.I SO.sub.4 and a divalent metal hydroxyde Me.sub.II (OH).sub.2, the sulphate-hydroxyde couple being selected from the group consisting of BeSO.sub.4 --Ba(OH).sub.2 ; BeSO.sub.4 --Sr(OH).sub.2 ; BeSO.sub.4 --Ca(OH).sub.2 ; MgSO.sub.4 --Ba(OH).sub.2 ; MgSO.sub.4 --Sr(OH).sub.2 ; MgSO.sub.4 --Ca(OH).sub.2 ; CaSO.sub.4 --Ba(OH).sub.2 ; CaSO.sub.4 --Sr(OH).sub.2 ; SrSO.sub.4 --Ba(OH).sub.2 ; ZnSO.sub.4 --Ba(OH).sub.2 ; ZnSO.sub.4 --Sr(OH).sub.2 ; ZnSO.sub.4 --Ca(OH).sub.2 ; CdSO.sub.4 --Ba(OH).sub.2 ; CdSO.sub.4 --Sr(OH).sub.2 and CdSO.sub.4 --Ca(OH).sub.2. The sulfate Me.sub.I SO.sub.4 and the hydroxide Me.sub.II (OH).sub.2, by reaction with each other, cause the sulphate Me.sub.II SO.sub.4 and the hydroxide Me.sub.I (OH).sub.2 to precipitate.The amount of Me.sub.II (OH).sub.2 is at least stoichiometric in respect of the amount of Me.sub.I SO.sub.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: September 6, 1983
    Assignee: Istituto Guido Donegani S.p.A.
    Inventors: Adriano Mattera, Marino Quaglino, Pasqualino Spighi, Massimo Stolfi