Patents by Inventor Ronald L. Friedman

Ronald L. Friedman 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).

  • Perester-acyl sulfonyl peroxide co-initiator for vinyl polymerization
    Patent number: 4151339
    Abstract: A process for polymerizing vinyl chloride and for copolymerizing vinyl chloride and up to 30 percent by weight of comonomers in aqueous suspension under heat and pressure in the presence of a mixture of an acyl sulfonyl peroxide and a perester of the formula ##STR1## wherein R.sub.3, R.sub.4, and R.sub.5 are the same or different alkyl groups of from 1 to about 10 carbon atoms provided not more than one of R.sub.3, R.sub.4, and R.sub.5 is methyl, and R is selected from 2,2-dimethyl propyl and straight chain alkyl of 1-5 carbon atoms.
    Type: Grant
    Filed: November 1, 1974
    Date of Patent: April 24, 1979
    Assignee: Argus Chemical Corporation
    Inventors: Ronald L. Friedman, Roger N. Lewis
  • Alpha halo substituted asymmetrical diacyl peroxides in co-initiator systems
    Patent number: 4107419
    Abstract: Organic peroxide polymerization co-initiator compositions and their use in the initiation of the polymerization of certain monomers and comonomers such as vinyl chloride, ethylene and methyl methacrylate. The co-initiator composition contains an alpha halo substituted diacyl peroxide and a coperoxide selected from t-alkyl peresters of t-hydroperoxides, peroxydicarbonates, acyl peroxycarbonic esters, and aliphatic diacyl peroxides. Typical is acetyl 2-chlorooctanoyl peroxide with t-butyl peroxy neodecanoate.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: August 15, 1978
    Assignee: Argus Chemical Corporation
    Inventors: Ronald L. Friedman, deceased, Roger N. Lewis
  • Alpha halo substituted asymmetrical diacyl peroxides in co-initiator systems
    Patent number: 4102815
    Abstract: Organic peroxide polymerization co-initiator compositions and their use in the initiation of the polymerization of certain monomers and comonomers such as vinyl chloride, ethylene and methyl methacrylate. The co-initiator composition contains an alpha halo substituted diacyl peroxide and a coperoxide selected from t-alkyl peresters of t-hydroperoxides, peroxydicarbonates, acyl peroxycarbonic esters, and aliphatic diacyl peroxides. Typical is acetyl 2-chlorooctanoyl peroxide with t-butyl peroxy neodecanoate.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: July 25, 1978
    Assignee: Argus Chemical Corporation
    Inventors: Ronald L. Friedman, deceased, Roger N. Lewis
  • T-Alkyl peresters of t-hydroperoxides catalysts for polymerization of unsaturated monomers
    Patent number: 4063013
    Abstract: Novel tertiary alkyl peresters of tertiary hydroperoxides are used as polymerization initiators wherein the peresters are characterized by the tertiary alkyl group of the acid moiety having at least two alkyl groups of two or more carbon atoms and the tertiary alkyl group of the hydroperoxide has at least five carbon atoms. Typical is the polymerization of certain vinyl monomers such as vinyl chloride.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: December 13, 1977
    Assignee: Argus Chemical Corporation
    Inventors: Ronald L. Friedman, Roger N. Lewis
  • Polymerization method and t-alkyl peresters of t-hydroperoxides for use therein
    Patent number: 4057567
    Abstract: Novel tertiary alkyl peresters of tertiary hydroperoxides are used as polymerization initiators wherein the peresters are characterized by the tertiary alkyl group of the acid moiety having at least two alkyl groups of two or more carbon atoms and the tertiary alkyl group of the hydroperoxide has at least five carbon atoms. Typical is the polymerization of certain vinyl monomers such as vinyl chloride.
    Type: Grant
    Filed: February 20, 1973
    Date of Patent: November 8, 1977
    Assignee: Argus Chemical Corporation
    Inventors: Ronald L. Friedman, Roger N. Lewis
  • Epoxidized dialkyl peroxides
    Patent number: 3991085
    Abstract: Dialkyl peroxides containing at least one epoxy grouping alpha to the peroxide linkage. Such peroxides have been found to be useful as catalysts in the preparation of heat cured polymer systems such as unsaturated polyester resins.
    Type: Grant
    Filed: December 26, 1974
    Date of Patent: November 9, 1976
    Assignee: Argus Chemical Corporation
    Inventors: Charles B. Abma, Ronald L. Friedman
  • Peroxide co-initiator system for polymerization
    Patent number: 3932372
    Abstract: A co-initiator system for polymerization of ethylenically unsaturated monomers comprising a preformed nitrile containing azo compound or symmetrical, diacyl peroxide in combination with an in situ or preformed acyl peroxy alkyl carbonate.
    Type: Grant
    Filed: November 15, 1973
    Date of Patent: January 13, 1976
    Assignee: Argus Chemical Corporation
    Inventors: Roger N. Lewis, Ronald L. Friedman