Patents by Inventor Raymond Joseph Schaper

Raymond Joseph Schaper 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).

  • Self-inverting emulsions of dialkyldiallyl ammonium chloride polymers and copolymers
    Patent number: 4077930
    Abstract: Self-inverting emulsion polymers and their use as drainage aids, retention aids, saveall flotation aids and process water flocculants.
    Type: Grant
    Filed: February 24, 1976
    Date of Patent: March 7, 1978
    Assignee: Calgon Corporation
    Inventors: Sim Koei Lim, Arnold Eugene Bloomquist, Raymond Joseph Schaper
  • Functional ionene compositions and their use
    Patent number: 4075136
    Abstract: Novel functional ionene polymer compositions have been prepared which have been found to be useful in a wide variety of applications, including, among others, as wet and dry strength additives, corrosion inhibitors, and electroconductive coatings, and which comprise recurring units of the formula: ##STR1##
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: February 21, 1978
    Assignee: Calgon Corporation
    Inventor: Raymond Joseph Schaper