Patents by Inventor Vincenzo Gemini

Vincenzo Gemini 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 dyeing of fibrous materials containing basic functions in dyeing baths based on organic solvents
    Patent number: 4115057
    Abstract: The present invention concerns a dyeing process with acid dyes for fibrous materials having basic functions, characterized in that amines are used which form salts or complexes with the dyes and have the general formula: ##STR1## wherein: R.sub.1, R.sub.2 and R.sub.3 are aliphatic hydrocarbon radicals, saturated or unsaturated, and having a linear or branched chain;R is either hydrogen or an aliphatic hydrocarbon radical, with either a linear or branched chain, saturated or unsaturated, on the general condition that the sum of the carbon atoms of the radicals R.sub.1, R.sub.2, R.sub.3 and R be a whole number between 11 and 29.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: September 19, 1978
    Assignee: Montedison S.p.A.
    Inventors: Francesco DeFeo, Vincenzo Gemini, Luigi Floridia