Patents Examined by Samuel Bartz
  • Patent number: 5532407
    Abstract: An industrial process for recovering L-phenylalanine in high yield from a side stream obtained from .alpha.-APM is disclosed. L-aspartic acid or an aqueous solution thereof is added to such a side stream when hydrolysis of the side stream is performed under acidic conditions with a mineral acid, the pH of the reaction mixture obtained by hydrolysis is then adjusted to 5 to 6 to precipitate L-phenylalanine.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: July 2, 1996
    Assignee: Ajinomoto Co., Inc.
    Inventors: Tadashi Takemoto, Takehiko Kataoka
  • Patent number: 5464809
    Abstract: Fungicidal new 2-methoximinocarboxylic esters of the general formula (I) ##STR1## in which Ar represents one of the radicals ##STR2## and A represents one of the radicals --CH.sub.2 --; ##STR3## where Y represents one of the radicals ##STR4## --O--CH.sub.2 --; --CH.sub.2 --O--; --S--CH.sub.2 --; ##STR5## --SO.sub.2 --CH.sub.2 --; --O--; --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --,n represents the number 0 or 1,R represents alkyl, halogenoalkyl, alkenyl, halogenoalkenyl, or represents optionally substituted cycloalkyl, or represents optionally substituted aryl or represents optionally substituted heteroaryl, and, moreover, in the event that n is 0, also represents halogen, andX.sup.1, X.sup.2, X.sup.3 and X.sup.4 independently of one another in each case represent hydrogen, halogen, hydroxyl or methoxy, but where, in the event that X.sup.2 represents bromine, X.sup.3 does not simultaneously represent hydroxyl or methoxy.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: November 7, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kramer, Dieter Berg, Heinz-Wilhelm Dehne, Stefan Dutzmann