Patents Assigned to P.F.W. Beheer B.V.
  • Sulfur-containing flavoring agents
    Patent number: 4477678
    Abstract: Novel thioether compounds are disclosed which are useful as flavoring materials to enhance or impart meat-like flavors to foodstuffs. These compounds have the general formula ##STR1## where X can be, under specified conditions, --CH.sub.2 --, oxygen, or sulfur, Y can be oxygen or sulfur and R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are hydrogen or 1 to 3 carbon alkyl groups.
    Type: Grant
    Filed: January 4, 1983
    Date of Patent: October 16, 1984
    Assignee: P.F.W. Beheer B.V.
    Inventors: Steven van den Bosch, Dirk K. Kettenes, Kris B. de Ross, Gerben Sipma, Jan Stoffelsma
  • Novel sulfur-containing flavoring agents
    Patent number: 4380655
    Abstract: Novel thioether compounds are disclosed which are useful as flavoring materials to enhance or impart meat-like flavors to foodstuffs. These compounds have the general formula ##STR1## where X can be, under specified conditions, --CH.sub.2 --, oxygen, or sulfur, Y can be oxygen or sulfur and R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are hydrogen or 1 to 3 carbon alkyl groups.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: April 19, 1983
    Assignee: P.F.W. Beheer B.V.
    Inventors: Steven van den Bosch, Dirk K. Kettenes, Kris Bart de Roos, Gerben Sipma, Jan Stoffelsma
  • 1-Crotonyl-2,2,6-trimethylcyclohexane
    Patent number: 4136066
    Abstract: 1-Crotonoyl-2,2,6-trimethylcyclohexane occurs in four stereoisomeric forms. In particular the trans, E and cis, E isomers having interesting organoleptic properties and are useful in the preparation of perfume compositions. Processes for preparing the stereoisomers, in a pure form or as mixtures, are described.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: January 23, 1979
    Assignee: P.F.W. Beheer B.V.
    Inventors: Douwe R. De Haan, Dirk K. Kettenes
  • Sulfur-containing flavoring agents
    Patent number: 4120985
    Abstract: New chemical compounds are disclosed having the general formula ##STR1## where X and Y are oxygen or sulfur and R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are hydrogen or lower alkyl groups. The compounds are useful in a variety of flavoring applications.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: October 17, 1978
    Assignee: P.F.W. Beheer B.V.
    Inventor: Steven van den Bosch
  • Sulfur-containing flavoring agents
    Patent number: 4119737
    Abstract: Novel thioether compounds are disclosed which are useful as flavoring materials to enhance or impart meat-like flavors to foodstuffs. These compounds have the general formula ##STR1## where X can be, under specified conditions, --CH.sub.2 --, oxygen, or sulfur, Y can be oxygen or sulfur and R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are hydrogen or 1 to 3 carbon alkyl groups.
    Type: Grant
    Filed: January 26, 1977
    Date of Patent: October 10, 1978
    Assignee: P.F.W. Beheer B.V.
    Inventors: Steven van den Bosch, Dirk Karel Kettenes, Kris Bart DE Roos, Gerben Sipma, Jan Stoffelsma
  • Flavoring with trans, E-1-crotonoyl-2,2,6-trimethylcyclohexane
    Patent number: 4109022
    Abstract: 1-Crotonoyl-2,2,6-trimethylcyclohexane occurs in four stereoisomeric forms. In particular the trans, E isomer has interesting organoleptic properties and is useful in the preparation of perfume and flavoring compositions. Processes for preparing the stereoisomers, in a pure form or as mixtures, are described.
    Type: Grant
    Filed: April 28, 1976
    Date of Patent: August 22, 1978
    Assignee: P.F.W. Beheer B.V.
    Inventors: Douwe Rienk de Haan, Dirk Karel Kettenes
  • Spiro-1,2,4-trithiolan containing flavoring agents and method of use
    Patent number: 4073957
    Abstract: New chemical compounds are disclosed having the general formula ##STR1## wherein X is oxygen, sulfur, or methylene and R.sub.1, R.sub.2, and R.sub.3, are hydrogen or lower alkyl groups. These compounds are useful in a variety of flavoring applications.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: February 14, 1978
    Assignee: P.F.W. Beheer B.V.
    Inventor: Steven van den Bosch
  • 1-Crotonyl-2,2,6-trimethylcyclohexanes
    Patent number: 3956392
    Abstract: 1-CROTONOYL-2,2,6-TRIMETHYLCYCLOHEXANE OCCURS IN FOUR STEREOISOMERIC FORMS. In particular the trans, E isomer has interesting organoleptic properties and is useful in the preparation of perfume and flavoring compositions. Processes for preparing the stereoisomers, in a pure form or as mixtures, are described.
    Type: Grant
    Filed: October 24, 1973
    Date of Patent: May 11, 1976
    Assignee: P.F.W. Beheer B.V.
    Inventors: Douwe Rienk DE Haan, Dirk Karel Kettenes
  • Process for the preparation of 3-mono-alkyl and 3,6-dialkyl-resorcylic esters
    Patent number: 3944596
    Abstract: Mono- and dialkyl-resorcylic esters of the general formula ##SPC1##Wherein R.sup.1 is hydrogen or an alkyl radical containing up to three carbon atoms, R.sup.2 represents an alkyl radical (preferably a lower alkyl radical such as methyl or ethyl) and R.sup.3 represents methyl or ethyl, are prepared by reacting the corresponding dihydroresorcylic esters having the general formula ##SPC2##With organic N-haloamides. Halocaprolactams, and especially N-chlorocaprolactam, are preferred reactants.
    Type: Grant
    Filed: November 23, 1973
    Date of Patent: March 16, 1976
    Assignee: P.F.W. Beheer B.V.
    Inventor: Amnon Mordechai Cohen