Patents by Inventor Klaus Bruns

Klaus Bruns 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).

  • Trimethylbicyclo [4.3.0] non-1-ene derivatives
    Patent number: 4555359
    Abstract: Trimethylbicyclo [4.3.0] non-1-ene derivatives are fragrant substances which are suitable for use alone and in perfume and odorant compositions. Methods of preparation and representive compositions are also disclosed.
    Type: Grant
    Filed: January 18, 1983
    Date of Patent: November 26, 1985
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Klaus Bruns, Ursula Weber
  • Terpene derivatives and perfume compositions containing them
    Patent number: 4545930
    Abstract: This invention is directed to terpene derivatives. More particularly, this invention relates to a mixture of isomers of the formula ##STR1## wherein R.sub.1 and R.sub.2, which are different from each other, are each methyl or isopropyl, the preparation thereof, and perfume compositions containing them.
    Type: Grant
    Filed: July 15, 1982
    Date of Patent: October 8, 1985
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Horst Upadek, Klaus Bruns
  • 2,4-Dioxa-7,10-methano-spiro [5,5] undecanes and their use in perfumery compositions
    Patent number: 4528126
    Abstract: 2,4-dioxa-7,10-methano-spiro [5,5] undecanes having the formula ##STR1## wherein R is a member selected from the group consisting of hydrogen, alkyl having from 1 to 4 carbon atoms, vinyl and propenyl and their isomeric mixtures; its synthesis, its use as a perfumery agent and as an olefactant component in perfumery compositions and as an odorant for technical products.
    Type: Grant
    Filed: October 4, 1983
    Date of Patent: July 9, 1985
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Klaus Bruns, Thuy N. Dang
  • Use of alkyl-substituted 1,3-dioxolanes as perfuming agents
    Patent number: 4435315
    Abstract: The invention is directed to a perfumery composition consisting essentially of at least one alkyl-substituted 1,3-dioxolane and customary constituents and to the use of such a perfumery composition to impart a pleasant odor to a product.
    Type: Grant
    Filed: April 7, 1982
    Date of Patent: March 6, 1984
    Assignee: Henkel Kommanditgesellschaft auf Atkien
    Inventors: Jens Conrad, Ulf-Armin Schaper, Klaus Bruns
  • Use of substituted 2-(1-methylbutyl)-1,3-dioxanes as perfuming agents
    Patent number: 4372880
    Abstract: The invention is directed to a perfumery composition consisting essentially of at least one substituted 2-(1-methylbutyl)-1,3-dioxane and customary constituents and to the use of such a perfumery composition to impart a pleasant odor to a product.
    Type: Grant
    Filed: April 15, 1981
    Date of Patent: February 8, 1983
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Horst Upadek, Klaus Bruns
  • 4(5)-Acetyl-9,9-dimethyltricyclo-[4,4,0,1.sup.8,10 ]-undec-1-ene, its preparation and use in perfumery compositions and as an odorant
    Patent number: 4363754
    Abstract: 4(5)-acetyl-9,9-dimethyltricyclo-[4,4,0,1.sup.8,10 ]-undec-1-ene having the formula ##STR1## its synthesis, its use as a perfumery agent and as an olfactant component in perfumery compositions and as an odorant for technical products.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: December 14, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Jens Conrad, Klaus Bruns, Horst Upadek
  • 4-Methyl-2,5-dioxabicyclo-[4,4,0]-decan-3-one, its preparation and use in perfume compositions and as an odorant
    Patent number: 4362882
    Abstract: 4-methyl-2,5-dioxabicyclo-[4,4,0]-decan-3-one having the formula ##STR1## its synthesis, its use as a perfumery agent and as an olefactant component in perfume compositions and as an odorant agent for technical products.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: December 7, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ulf-Armin Schaper, Klaus Bruns
  • Preparation of 13-oxabicyclo[10.3.0]pentadecane
    Patent number: 4360468
    Abstract: This invention relates to the preparation of 13-oxabicyclo[10.3.0]pentadecane. More specifically, this invention relates to a process for preparing 13-oxabicyclo[10.3.0]pentadecane which comprises the steps of:(a) reacting cyclododecanone with elemental bromine in an organic solvent to form .alpha.-bromocyclododecanone;(b) reacting .alpha.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: November 23, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Horst Upadek, Klaus Bruns
  • 6(9)-Isopropyl-9(6)-methyl-6,9-ethano-2-oxaspiro[4,5]dec-7-enes
    Patent number: 4351772
    Abstract: This invention is directed to terpene derivatives. More particularly, this invention relates to a mixture of isomers of the formula ##STR1## wherein R.sub.1 and R.sub.2, which are different from each other, are each methyl or isopropyl, the preparation thereof, and perfume compositions containing them.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: September 28, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Horst Upadek, Klaus Bruns
  • Production of aldehydes
    Patent number: 4334100
    Abstract: This invention is directed to a process for preparing aldehydes by hydroformylation of monoterpene compounds, which comprises reacting a monocyclic or bicyclic monoterpene compound with at least one double bond at from about 70.degree. to 160.degree. C. under a pressure of from about 100 to 400 bar and in the presence of a catalyst mixture of tertiary phosphines and rhodium carbonyl complexes containing tertiary phosphines. The aldehydes prepared are useful as perfuming agents.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: June 8, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Jens Hagen, Klaus Bruns
  • 4(5)-Acetyl-9,9-dimethyltricyclo-[4,4,0,1.sup.8,10 ]-undec-1-ene, its preparation and use in perfumery compositions and as an odorant
    Patent number: 4322559
    Abstract: 4(5)-acetyl-9,9-dimethyltricyclo-[4,4,0,1.sup.8,10 ]-undec-1-ene having the formula ##STR1## its synthesis, its use as a perfumery agent and as an olfactant component in perfumery compositions and as an odorant for technical products.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: March 30, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Jens Conrad, Klaus Bruns, Horst Upadek
  • Method of preparing perfume compositions that contain tricyclo[5.2.1.0.sup.2 ]decane carboxylic acid esters
    Patent number: 4311616
    Abstract: This invention is directed to perfume compositions comprising esters of mixtures of tricyclo[5.2.1.0.sup.2.6 ]decane carboxylic acids of the general formulas: ##STR1## wheren R represents a saturated or unsaturated linear or branched aliphatic hydrocarbon radical having from about 1 to 5 carbon atoms; as well as the use of the compositions as odorants.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: January 19, 1982
    Inventors: Ulf-Armin Schaper, Klaus Bruns
  • Perfume compositions containing 4(5)-acetyl-7,7,9(7,9,9)-trimethylbicyclo[4.]non-1-ene
    Patent number: 4302363
    Abstract: This invention is directed to the isomer mixture 4(5)-acetyl-7,7,9(7,9,9)-trimethylbicyclo[4.3.0]non-1-ene, the preparation thereof, and the use of said mixture as a perfuming agent. The isomer mixture represents a valuable new perfuming agent having strong, warm ambergris scent with woody tobacco leaf, methyl ionone, and arborvitae notes and having exceptional persistence as well.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: November 24, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Klaus Bruns, Ursula Weber
  • Perfume composition containing 4,5-dioxa-5-alkyl-tricyclo[7.2.1.0 .sup.2,8 ]dodec-10-enes and its use as an odorant
    Patent number: 4294727
    Abstract: This invention is directed to perfume compositions comprising 4,6-dioxa-5-.sub.C1-C8 -alkyl or .sub.C2-C8 -alkenyl-tricyclo[7.2.1.0.sup.2,8 ]dodec-10-enes, the use of said tricyclododecenes as an odorant, the synthesis of said tricyclododecenes, and novel tricyclododecenes.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: October 13, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Jens Conrad, Horst Upadek, Klaus Bruns
  • Perfume compositions containing tricyclo[5.2.1.0.sup.2.6 ]decane carboxylic acid esters
    Patent number: 4289660
    Abstract: This invention is directed to perfume compositions comprising esters of mixtures of tricyclo[5.2.1.0.sup.2.6 ]-decane carboxylic acids of the general formulas: ##STR1## wherein R represents a saturated or unsaturated linear or branched aliphatic hydrocarbon radical having from about 1 to 5 carbon atoms; as well as the use of the compositions as odorants.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: September 15, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ulf-Armin Schaper, Klaus Bruns
  • Mixture of aldehydes resulting from hydroformylation of .alpha.-terpinene
    Patent number: 4283561
    Abstract: This invention is directed to a mixture of compounds of formulas ##STR1## This invention is also directed to preparation of the mixture and the use of said mixture as a perfuming agent.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: August 11, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Jens Hagen, Klaus Bruns
  • Hydrogenated indenopyrans and their use in aromatic compositions
    Patent number: 4271047
    Abstract: This invention is directed to compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen or a methyl radical, with the proviso that only one of R.sub.1 and R.sub.2 is methyl radical, as well as to aromatic compositions containing said compounds and the use of such aromatic compositions to impart desired odors.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: June 2, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Jens Conrad, Horst Upadek, Klaus Bruns
  • Perfume aldehydes from hydroformylation of caryophyllene
    Patent number: 4270007
    Abstract: This invention is directed to mixtures of aldehydes of formulas ##STR1## This invention is also directed to the preparation of the mixture and the use of said mixture as a perfuming agent.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: May 26, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Jens Hagen, Klaus Bruns
  • 13,15-Dioxabicyclo[10.5.0]heptadecanes, their preparation, and their use in perfume compositions and as an odorant
    Patent number: 4268443
    Abstract: This invention is directed to 13,15-dioxabicyclo[10.5.0]heptadecanes having the structural formula ##STR1## wherein R and R.sup.1 are independently hydrogen or a methyl radical. The invention is also directed to their preparation, their use as perfuming agents and as olefactant components in perfume compositions and as an odorant agent for technical products.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: May 19, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Klaus Bruns, Peter Meins
  • Perfume compositions containing esters of 3,5,5-trimethylhexanoic acid
    Patent number: 4267075
    Abstract: A perfumery composition consisting essentially of from 1% to 50% by weight of an ester of 3,5,5-trimethylhexanoic acid of the formula ##STR1## wherein R is a member selected from the group consisting of alkyl having from 1 to 5 carbon atoms, alkenyl having from 3 to 5 carbon atoms and alkynyl having from 3 to 5 carbon atoms, and the remainder customary constituents of perfumery compositions; as well as the method of perfuming employing the perfumery composition.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: May 12, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ulf-Armin Schaper, Jens Conrad, Klaus Bruns