Patents by Inventor Cássio Queiroz Cavalcante

Cássio Queiroz Cavalcante 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).

  • Quaternary ammonium composition
    Patent number: 7348303
    Abstract: A quaternary ammonium composition is claimed which essentially consists of a) a cationic compound with general formula: wherein R1 is C8-C22-alkyl, C8-C22-alkenyl, C8-C22-alkylamidopropyl, C8-C22-alkenyl-amidopropyl, C8-C22-alkyl/alkenyl(poly)alkoxyalkyl, C8-C22-alkanoylethyl or C8-C22-alkenoylethyl, R2, R3 and R4 are C1—C22-alkyl, C2-C22-alkenyl or a group of the formula -A-(OA)n-OH, A is —C2H4— and/or —C3H6—, n is a number from 0 to 20 and X is an anion, b) water and c) a non-ionic solvent of the general formula R—O-(AO)nH, where R is hydrogen, alkyl or alkenyl containing 8 to 22 carbon atoms, or phenyl, A is C2H4 and/or C3H6 and n is a number from 0 to 20, which composition is characterized in that it contains less than 20% by weight of water.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: March 25, 2008
    Assignee: Clariant International, Ltd.
    Inventors: Manlio Gallotti, Patricia Ramos Pereira De Moraes, Cássio Queiroz Cavalcante