Patents by Inventor Edgar W. Knaub

Edgar W. Knaub 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: 4230605
    Abstract: The high gloss of vinyl composition floor coverings having a no-wax coating is maintained by using a cleaner consisting essentially of an aqueous emulsion polymerized alkali-soluble terpolymer having an average molecular weight of about 23,000, the terpolymer being an addition polymer based on about 51% by weight methyl methacrylate, 31% by weight butyl acrylate, and 18% by weight acrylic acid; a mixture of 50% by weight of the reaction product of 1 mole of coconut oil to 2 moles diethanolamine and 50% by weight of the reaction product of 1 mole dodecylbenzenesulfonic acid to 1 mole diethanolamine; an organic solvent; an aqueous ammonia solution; and water. Before being used as a cleaner the cleaner is preferably diluted to between about 0.5 to 0.10 percent solids.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: October 28, 1980
    Assignee: Armstrong Cork Company
    Inventors: Arlene D. Connolly, James M. Eshleman, Edgar W. Knaub
  • Patent number: 4073975
    Abstract: A process for flatting a glossy polyurethane surface is disclosed. The process involves the steps of forming a wear layer on a carrier member, such comprising a polyurethane-forming composition. The coated carrier member is then treated with vaporous water at a temperature below the dew point of the vaporous water so that a film of liquid water is deposited on the surface of the coating. The coating with the liquid water deposited thereon is then cured to a tack free state and then subjected to elevated temperatures where the curing of the polyurethane coating is completed.
    Type: Grant
    Filed: September 17, 1976
    Date of Patent: February 14, 1978
    Assignee: Armstrong Cork Company
    Inventors: Mervin R. Buckwalter, Edgar W. Knaub