Patents by Inventor Arthur Z. Moss

Arthur Z. Moss 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).

  • Impact resistant polytetrafluoroethylene and preparation thereof
    Patent number: 5512624
    Abstract: The invention provides shaped, substantially unoriented, compositions of PTFE, having high notched Izod impact resistance, produced in a hot compression molding process wherein heat and pressure are applied simultaneously in a selected temperature range below the melting point of the virgin, as polymerized PTFE powder.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: April 30, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward G. Howard, Jr., Arthur Z. Moss
  • Polytetrafluoroethylene with improved creep resistance, and preparation thereof
    Patent number: 5420191
    Abstract: Shaped PTFE compositions are disclosed having low creep which are produced by the application of pressure and elevated temperature. Also disclosed is a process for making shaped compositions with low creep by the application of pressure and elevated temperature.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: May 30, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward G. Howard, Jr., Arthur Z. Moss
  • Moisture indicating molding resins
    Patent number: 5399609
    Abstract: Melt formable thermoplastic resins which exhibit a difference in color between their wet and dry states, processes for melt forming such resins, and the resulting melt formed shaped articles are provided.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: March 21, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Arthur Z. Moss
  • Process for making continuous films of ordered poly(ether ketone ketones)
    Patent number: 5049340
    Abstract: A process for extruding a smooth and uniform film or sheet of an ordered poly(ether ketone ketone) having a thickness of about 2.5 to 250 micrometers, wherein the molten extrudate is quenched on a drum maintained at a temperature of about 100.degree.-170.degree. C.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: September 17, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Arthur Z. Moss, George J. Ostapchenko
  • Process for making a heterogeneous membrane film
    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
  • Heterogeneous membranes from highly filled thermoplastic orientable polymers
    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
  • Microporous polymeric films and process for their manufacture
    Patent number: 4698372
    Abstract: Microporous polymeric films having good water vapor transmission rates and hydrostatic resistance to the penetration of liquid water are obtained by stretching a composition consisting of a matrix of a thermoplastic orientable polymer having a hydrophobic surface, a glass transition temperature of less than 25.degree. C., a Vicat softening point of more than about 25.degree. C., an ultimate elongation between those two temperatures of at least 100%, and a flexural modulus of less than 200 MPa and a particulate filler having an aspect ratio of less than 3, an average diameter of 0.05-50 m, a negligible attraction to the matrix polymer, and a surface tension no higher than that of the matrix polymer at the latter's melting temperature.Such films are useful in applications involving separation of liquids and vapors, e.g., in making "breathing" waterproof garments or linings.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: October 6, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Arthur Z. Moss