Patents by Inventor Karel Kliment

Karel Kliment 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).

  • Plasticized hydrophilic polymers
    Patent number: 4039501
    Abstract: Plasticized solid, water-insoluble, water-swellable, hydrophilic polymers having the recurring unit ##STR1## wherein R is a divalent aliphatic hydrocarbon radical of 2 to 8 carbon atoms; where R' is hydrogen or alkyl of 1 to 4 carbon atoms; preferably hydrogen or methyl; wherein R" is hydrogen or alkyl of 1 to 12 carbon atoms; and wherein n is an integer of at least 1; and as the plasticizer therefor, preferably a liquid compound characterized by amino and hydroxyl groups, said compound having a relatively low vapor pressure.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: August 2, 1977
    Assignee: National Patent Development Corporation
    Inventors: Thomas E. Babcock, Karel Kliment, Richard F. Stockel
  • Water soluble polymers useful in the preparation of novel animal litter
    Patent number: 4009684
    Abstract: An animal litter is prepared comprising a loose substrate treated with a solid water soluble copolymer of (a) 5 - 35% of a hydroxyester of a 2-alkenoate having the formula ##STR1## wherein R is alkylene of 2 to 4 carbon atoms and R' is hydrogen or alkyl of 1 to 4 carbon atoms, n is an integer and (b) a copolymerizable water soluble monomer or polymer. The polymer is prepared in solution in a solvent or one of the monomers. A fragrance is also added.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: March 1, 1977
    Assignee: National Patent Development Corporation
    Inventors: Karel Kliment, Rudolf N. Vermes, Richard F. Stockel