Patents by Inventor Frederick G. Schumacher

Frederick G. Schumacher 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).

  • Organic acid containing filled and plasticized thermoplastic compositions based on ethylene interpolymers
    Patent number: 4434258
    Abstract: Filled thermoplastic compositions having enhanced elongation and useful, e.g., as sound-deadening sheeting for automotive carpet, are obtained by blending about 0-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; 0-20% by weight of a plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers, polyether esters and combinations thereof; about 40-90% by weight of filler; from about 0.05 to about 5.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frederick G. Schumacher, Walter Yllo
  • Surfactant-containing filled and plasticized thermoplastic compositions based on ethylene interpolymers
    Patent number: 4430468
    Abstract: Filled thermoplastic compositions having enhanced elongation and useful, e.g., as sound-deadening sheeting for automotive carpet, are obtained by blending about 0-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; 0-20% by weight of a plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers, polyether esters and combinations thereof; about 40-90% by weight of filler; from about 0.05 to about 5.0% by weight of at least one surface active agent such as sulfonates, sulfates, phosphates, etc.; and optionally, modifying resins, such as tackifiers and certain ethylene and propylene homo- and copolymers.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: February 7, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frederick G. Schumacher
  • Highly filled thermoplastic compositions prepared with fine particle size filler
    Patent number: 4263196
    Abstract: Highly filled thermoplastic compositions of improved characteristics useful as sound-deadening sheeting for automotive carpet are obtained by blending about 5-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; about 2-15% by weight of processing oil; and about 50-90% by weight of fine particle size filler. Pellets prepared from these compositions remain free flowing even after storage under load.
    Type: Grant
    Filed: June 27, 1979
    Date of Patent: April 21, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frederick G. Schumacher, Walter Yllo
  • Blends of clay, processing oil and ethylene/vinyl ester copolymers
    Patent number: 4222924
    Abstract: There is provided a means to include clay in hot melt compositions containing substantial quantities of ethylene/vinyl ester copolymers by including a processing oil in the blend in order to passivate the clay. The oil:clay weight ratio should be at least about 1:4.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: September 16, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frederick G. Schumacher
  • Highly filled thermoplastic compositions based on ethylene interpolymers and processing oils
    Patent number: 4191798
    Abstract: Highly filled thermoplastic compositions useful as sound-deadening sheeting for automotive carpet are obtained by blending about 5-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; about 2-15% by weight of processing oil; and about 50-90% by weight of filler.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: March 4, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frederick G. Schumacher, Walter Yllo