Patents by Inventor Michael C. Coughlin

Michael C. Coughlin 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).

  • Patent number: 4909971
    Abstract: A film having a porous core layer and nonporous outer layers is made from a composition of certain polymers, particularly ethylene polymers, a particulate filler which has little affinity for the polymer, and optionally an organic compound which decreases the tendency for affinity of the particulate for the polymer. The film is produced by extruding the composition through a die gap of at least 250 .mu.m, and subsequently stretching the film after cooling to a temperature below the melting temperature of the polymer.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: March 20, 1990
    Assignee: Du Pont Canada Inc.
    Inventors: Michael C. Coughlin, Arthur Z. Moss, Kenneth E. Stevens
  • Patent number: 4842741
    Abstract: A film having a porous core layer and nonporous outer layers is disclosed. It is suitable for controlled atmosphere packaging end uses. The film is made from a composition of certain polymers, particularly ethylene polymers, a particulate filler which has little affinity for the polymer, and optionally an organic compound which decreases the tendency for affinity of the particulate for the polymer. The film is produced by extruding the composition through a die gap of at least 250 .mu.m, and subsequently stretching the film after cooling to a temperature below the melting temperature of the polymer.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: June 27, 1989
    Assignee: Du Pont Canada Inc.
    Inventors: Michael C. Coughlin, Arthur Z. Moss, Kenneth E. Stevens
  • Patent number: 4480061
    Abstract: Articles having wood-like properties and appearance are obtained from compositions comprising 5-55% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters or salts of said unsaturated acids, etc.; 1-15% by weight of at least one plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers and polyetheresters; 20-90% by weight of cellulosic filler or mixture of cellulosic filler and mineral filler; 0-10% by weight of at least one additive, such as organic acid, organic acid derivative and surface active agent; and 0-44% by weight of certain ethylene and propylene homo- and copolymers.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: October 30, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael C. Coughlin, Timothy T. Schenck
  • Patent number: 4472545
    Abstract: Articles having leather-like appearance are obtained from compositions comprising 5-55% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, ethylene/.alpha.-olefin copolymers, etc.; 1-15% by weight of at least one plasticizer selected from the group consisting of processing oils, epoxidized oils polyesters, polyethers and polyetheresters; 20-90% by weight of cellulosic filler or mixture of cellulosic filler and mineral filler; 0-10% by weight of at least one additive, such as organic acid, organic acid derivative and surface active agent; and 0-27.5% by weight of elastomeric polymer.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: September 18, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael C. Coughlin, Timothy T. Schenck
  • Patent number: 4403007
    Abstract: Filled thermoplastic compositions useful, e.g., as sound-deadening sheeting for automotive carpet are obtained by blending about 5-55% 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 1-15% by weight of a plasticizer selected from the group consisting of polyesters, polyethers, polyether esters and combinations thereof with processing oil; about 40-90% by weight of filler; and optionally modifying resins, such as unvulcanized elastomeric polymers and certain other ethylene and propylene homo- and copolymers.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: September 6, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Michael C. Coughlin