Patents by Inventor Peter Mitchell Robinson

Peter Mitchell Robinson 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).

  • Publication number: 20020066880
    Abstract: The removal of inks from a pulp fiber slurry is accomplished by use of a combination of (1) a polyester obtained through reaction between di and/or tricarboxylic acids and/or anhydrides thereof and a polyalkylene glycol or one or more alkylene oxides, (2) a first deinking agent which is an alkoxylated hydrophobic base, e.g. an alcohol, amine, acid, dimer acid, salts thereof, or the like, and (3) a second deinking agent which is a second alkoxylated hydrophobic base having a cloud point about 2 to 20° lower than the cloud point of the first deinking agent. Use of the three component combination allows an improved foam profile allowing longer continuous operation or one or more of a reduction in total chemical demand, optical bleach demand, and stickies.
    Type: Application
    Filed: August 7, 2001
    Publication date: June 6, 2002
    Applicant: KAO Specialties Americas
    Inventors: Peter Mitchell Robinson, Hugh Lavery