Patents by Inventor Franklin Strain

Franklin Strain 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).

  • Polymerization of ethylenically unsaturated monomer with dialkyl pyrocarbonate and hydrogen peroxide
    Patent number: 3984386
    Abstract: Ethylenically unsaturated material susceptible to free radical polymerization, e.g., vinyl chloride monomer, is polymerized, e.g., in an aqueous medium, with an initiator system comprising, in combination, dialkyl pyrocarbonate, hydrogen peroxide, and alkaline reagent, e.g., sodium bicarbonate. The initiator system is added to the polymerization medium in amounts sufficient to polymerize the ethylenically unsaturated material.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: October 5, 1976
    Assignee: PPG Industries, Inc.
    Inventor: Franklin Strain
  • Silicate treated asbestos diaphragms for electrolytic cells
    Patent number: 3979276
    Abstract: A diaphragm is disclosed for electrolytic cells, for example, chlor-alkali cells. The diaphragm is characterized in that it has been treated with a water-soluble silicate on the anolyte side. Also disclosed is an electrolytic cell process using such a diaphragm, and a method for preparing such a diaphragm.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: September 7, 1976
    Assignee: PPG Industries, Inc.
    Inventor: Franklin Strain
  • Method of making silicate treated asbestos diaphragms for electrolytic cells
    Patent number: 3932208
    Abstract: A diaphragm is disclosed for electrolytic cells, for example, chlor-alkali cells. The diaphragm is characterized in that it has been treated with a water-soluble silicate on the anolyte side. Also disclosed is an electrolytic cell process using such a diaphragm, and a method for preparing such a diaphragm.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: January 13, 1976
    Assignee: PPG Industries, Inc.
    Inventor: Franklin Strain