Patents by Inventor LeMoyne W. Plischke

LeMoyne W. Plischke 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).

  • Antiflea fibers
    Patent number: 5028471
    Abstract: Melt-spun filaments having a substance incorporated therein to kill fleas and staple length fibers made therefrom are described. Carpets containing these fibers are useful for ridding households and household pets of fleas.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: July 2, 1991
    Assignee: Monsanto Company
    Inventors: Lemoyne W. Plischke, Rupert J. Snooks, Jr., Scott E. Osborn
  • Process for preparing heat and light stabilized Nylon 66 polymer
    Patent number: 4851466
    Abstract: Nylon 66 polymer is stabilized against heat and light during its preparation by conducting the polymerization in the presence of certain copper complexes, such as cupric amminohydroxide, and KBr and/or KI. Less metallic copper is formed during polymerization than if copper salts (e.g. copper acetate) are used instead of the copper complexes.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: July 25, 1989
    Assignee: Monsanto Company
    Inventors: Lemoyne W. Plischke, Donald E. Danly
  • Partially oriented nylon yarn and process
    Patent number: 4721650
    Abstract: A polyamide (preferably nylon 66) partially oriented feed yarn contains a small amount of branching agent and has an elongation between 45 and 150%. The feed yarn can be textured by the friction twist process to yield a textured yarn having crimp development similar to yarn textured by the much more expensive pin twist method.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: January 26, 1988
    Assignee: Monsanto Company
    Inventors: Walter J. Nunning, LeMoyne W. Plischke, Dror Selivansky, John H. Southern, Chester C. Wu
  • Antimicrobial nylon prepared in water with zinc compound and phosphorus compound
    Patent number: 4701518
    Abstract: Antimicrobial activity is imparted to nylon during its preparation by adding to the nylon-forming monomer(s), a zinc compound (e.g. zinc ammonium carbonate) and a phosphorus compound (e.g. benzene phosphinic acid). The compounds are added in amounts sufficient to form in situ a reaction product containing at least 300 ppm of zinc, based on the weight of nylon prepared. Fibers made from the resulting nylon contain the reaction product uniformly dispersed therein and have antimicrobial activity of a permanent nature.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: October 20, 1987
    Assignee: Monsanto Company
    Inventors: Scott E. Osborn, Vincent J. Farrugia, LeMoyne W. Plischke, Chester C. Wu
  • Batch process for preparing 6TA/6IA copolymers high in 6TA
    Patent number: 4501882
    Abstract: In the batch melt polymerization process for preparing 6TA/6IA copolymer having a high 6TA content, i.e., greater than 45%, successive batches of copolymer can be prepared without cleaning out the autoclave between successive batches by conducting the preparation of each batch in the presence of a small amount of a base, for example, sodium hydroxide.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: February 26, 1985
    Assignee: Monsanto Company
    Inventor: LeMoyne W. Plischke
  • Electrochemical process for incorporating copper in nylon
    Patent number: 4312719
    Abstract: A process for dissolving copper in an aqueous nylon salt solution without dissolving other substances is provided by applying an electrical potential between two copper electrodes immersed in the solution. Upon melt polymerization of the salt solution, copper is incorporated into the resulting nylon. The amount of copper dissolved in the solution can be closely monitored and controlled.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: January 26, 1982
    Assignee: Monsanto Company
    Inventors: LeMoyne W. Plischke, Joseph M. Kiefer
  • Crimped polyester filament
    Patent number: 4293614
    Abstract: Crimped side-by-side bicomponent filaments consisting of a polyester and CaF.sub.2 are produced in whichthe CaF.sub.2 is dispersed in only one of the components.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: October 6, 1981
    Assignee: Monsanto Company
    Inventors: LeMoyne W. Plischke, Harold M. Familant, Darrell A. Kelly
  • Process for manufacturing nonwoven fabrics composed of crimped filaments
    Patent number: 4280860
    Abstract: An improved process for making point-bonded nonwoven fabric composed of crimped filaments is described. The process involves melt spinning a side-by-side bicomponent filament which develops crimp at precisely the right instant so as to provide a uniform, high quality nonwoven fabric having a soft hand and other desirable apparel qualities.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: July 28, 1981
    Assignee: Monsanto Company
    Inventors: Hsiang-Sheng Shen, LeMoyne W. Plischke, William M. Baggett, Franklin T. Osborne
  • Crimped polyamide filament
    Patent number: 4271233
    Abstract: Crimped side-by-side bicomponent filaments consisting of a polyamide and CaF.sub.2 are produced in which the CaF.sub.2 is dispersed in only one of the components.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: June 2, 1981
    Assignee: Monsanto Company
    Inventors: LeMoyne W. Plischke, William M. Baggett
  • Process for incorporating CaF.sub.2 into polyamides
    Patent number: 4176227
    Abstract: A process for incorporating CaF.sub.2 into polyamides is described. The process involves reacting a calcium salt with a fluoride salt in molten polyamide.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: November 27, 1979
    Assignee: Monsanto Company
    Inventors: William M. Baggett, LeMoyne W. Plischke