Patents by Inventor Roger Palmberg

Roger Palmberg 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).

  • Cationic adsorption agent
    Patent number: 4478724
    Abstract: A cationic adsorption agent which is obtained by reaction of(a) an amino compound which contains at least one amino group and at least one free or methylolated carbamide or thiocarbamide group, or a salt thereof, with(b) an aminoplast precondensate which does not contain amino groups.The novel adsorption agent is suitable in particular for removing anionic substances, such as acid dyes or reactive dyes, from aqueous solutions, especially from wastewaters.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: October 23, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Jaroslav Haase, Roger Palmberg
  • Cationic adsorption agent
    Patent number: 4424284
    Abstract: A cationic adsorption agent which is obtained by reaction of(a) an amino compound which contains at least one amino group and at least one free or methylolated carbamide or thiocarbamide group, or a salt thereof,with(b) an aminoplast precondensate which does not contain amino groups.The novel absorption agent is suitable in particular for removing anionic substances, such as acid dyes or reactive dyes, from aqueous solutions, especially from wastewaters.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: January 3, 1984
    Assignee: Ciga-Geigy Corporation
    Inventors: Jaroslav Haase, Roger Palmberg