Patents by Inventor Rudolf F. Lang

Rudolf F. Lang 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).

  • Organo-silica polymers
    Patent number: 3946061
    Abstract: Organo-silica polymers having the formula: ##EQU1## WHEREIN M AND N ARE INTEGERS INDEPENDENTLY REPRESENTING THE NUMBER OF UNITS; R represents --H, --CN, --CONH.sub.2, --CONH.sub.3 .sup.+, --COOH, --COO.sup.-, --COOM, or --COOR"; R' represents --NH--, --NH.sub.2 --.sup.+, --NR"--, --NR"H--.sup.+, or --CH.sub.2 --CHR--; --CH.sub.2 --CHR--; and whenever R' contains nitrogen, R is hydrogen; R" represents an alkyl or aryl radical; M represents an alkali metal; X represents an --OH, --O.sup.-, or --OM; are suitable as sequestering, dispersing, and flocculating agents.
    Type: Grant
    Filed: February 17, 1971
    Date of Patent: March 23, 1976
    Assignee: Buckman Laboratories, Inc.
    Inventors: Stanley J. Buckman, Rudolf F. Lang, Michael L. Mishler