Patents by Inventor Shinji Kotachi
Shinji Kotachi 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).
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Patent number: 9181160Abstract: The present invention relates to [1] a method of producing 1-(2-t-butylcyclohexyloxy)-2-butanol including a step of hydrogenating 1-(2-t-butylphenyloxy)-2-butanol under a condition at a hydrogen pressure of from 1 to 5 MPa in the presence of a palladium catalyst (A) supported on peat-derived active carbon and a metal catalyst (B) containing one or more kinds of members selected from ruthenium, rhodium, platinum, and nickel; and [2] a perfume composition containing 1-(2-t-butylcyclohexyloxy)-2-butanol obtained by the foregoing method. According to the present invention, 1-(2-t-butylcyclohexyloxy)-2-butanol having a woody or amber-like fragrance as a perfume material and excellent fragrance notes can be obtained in a high purity because of a small remaining amount of a reaction intermediate and in a high yield.Type: GrantFiled: December 25, 2012Date of Patent: November 10, 2015Assignee: KAO CORPORATIONInventors: Tsubasa Arai, Shinji Kotachi, Yoshiharu Ataka
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Patent number: 8927777Abstract: The present invention relates to [1] a method of producing a 1-(2-t-butylcyclohexyloxy)-2-alkanol including a step of adjusting a raw material mixture containing a 1-(2-t-butylphenyloxy)-2-alkanol represented by the formula (1) to a pH of from 7.5 to 10.0 and hydrogenating it in the presence of a palladium catalyst (A) and a metal catalyst (B) containing one or more kinds of members selected from ruthenium, rhodium, platinum, and nickel; and [2] a perfume composition containing a 1-(2-t-butylcyclohexyloxy)-2-alkanol obtained by the foregoing method. The present invention provides a method of efficiently producing a 1-(2-t-butylcyclohexyloxy)-2-alkanol having a high trans-isomer content and a strong woody or amber-like fragrance as a perfume material and also having excellent persistence of aroma. (In the formula, R1 is a methyl group or an ethyl group.Type: GrantFiled: December 25, 2012Date of Patent: January 6, 2015Assignee: Kao CorporationInventors: Tsubasa Arai, Shinji Kotachi, Yoshiharu Ataka
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Publication number: 20140378713Abstract: The present invention relates to [1] a method of producing 1-(2-t-butylcyclohexyloxy)-2-butanol including a step of hydrogenating 1-(2-t-butylphenyloxy)-2-butanol under a condition at a hydrogen pressure of from 1 to 5 MPa in the presence of a palladium catalyst (A) supported on peat-derived active carbon and a metal catalyst (B) containing one or more kinds of members selected from ruthenium, rhodium, platinum, and nickel; and [2] a perfume composition containing 1-(2-t-butylcyclohexyloxy)-2-butanol obtained by the foregoing method. According to the present invention, 1-(2-t-butylcyclohexyloxy)-2-butanol having a woody or amber-like fragrance as a perfume material and excellent fragrance notes can be obtained in a high purity because of a small remaining amount of a reaction intermediate and in a high yield.Type: ApplicationFiled: December 25, 2012Publication date: December 25, 2014Applicant: KAO CORPORATIONInventors: Tsubasa Arai, Shinji Kotachi, Yoshiharu Ataka
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Publication number: 20140350306Abstract: The present invention relates to [1] a method of producing a 1-(2-t-butylcyclohexyloxy)-2-alkanol including a step of adjusting a raw material mixture containing a 1-(2-t-butylphenyloxy)-2-alkanol represented by the formula (1) to a pH of from 7.5 to 10.0 and hydrogenating it in the presence of a palladium catalyst (A) and a metal catalyst (B) containing one or more kinds of members selected from ruthenium, rhodium, platinum, and nickel; and [2] a perfume composition containing a 1-(2-t-butylcyclohexyloxy)-2-alkanol obtained by the foregoing method. The present invention provides a method of efficiently producing a 1-(2-t-butylcyclohexyloxy)-2-alkanol having a high trans-isomer content and a strong woody or amber-like fragrance as a perfume material and also having excellent persistence of aroma. (In the formula, R1 is a methyl group or an ethyl group.Type: ApplicationFiled: December 25, 2012Publication date: November 27, 2014Applicant: KAO CORPORATIONInventors: Tsubasa Arai, Shinji Kotachi, Yoshiharu Ataka
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Patent number: 8816136Abstract: Disclosed is a method for producing an alicyclic alcohol represented by general formula (III) which is useful as a starting material for a flavor mixture or the like at low cost in high yield. The alicyclic alcohol represented by general formula (III) is produced by preparing a cyclohexanecarbonyl compound represented by general formula (II) through the carbonylation of an unsaturated hydrocarbon represented by general formula (I) (preferably a compound obtained through the partial reduction of a diene compound) using carbon monoxide in the presence of HF, and thereafter reducing the cyclohexanecarbonyl compound. In formulae (I), (II), and (III), R1 represents an alkyl group having 1 to 4 carbon atoms, R2 represents an alkyl group having 1 to 4 carbon atoms, R3 represents an OH group, fluorine, or an OR4 group, and R4 represents an alkyl group having 1 to 4 carbon atoms.Type: GrantFiled: June 30, 2010Date of Patent: August 26, 2014Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Mitsuharu Kitamura, Shinji Kotachi, Shinya Nagasawa, Yoshiharu Ataka
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Patent number: 8383574Abstract: The present invention relates to a perfume composition as a raw material of fruity perfumes which has a conventionally unknown peculiar fresh, woody, floral, grassy-leafy nuance and is capable of harmonizing with various perfumes to provide perfume preparations having a more sophisticated odor or scent. The perfume composition of the present invention includes a compound represented by the general formula (I): wherein R1 and R2 are each independently a hydrocarbon group having 1 to 4 carbon atoms; and R3 is a hydrocarbon group having 2 to 4 carbon atoms.Type: GrantFiled: March 2, 2009Date of Patent: February 26, 2013Assignee: Kao CorporationInventors: Shinji Kotachi, Shinya Nagasawa, Satoshi Ohno
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Publication number: 20120238784Abstract: Disclosed is a method for producing an alicyclic alcohol represented by general formula (III) which is useful as a starting material for a flavor mixture or the like at low cost in high yield. The alicyclic alcohol represented by general formula (III) is produced by preparing a cyclohexanecarbonyl compound represented by general formula (II) through the carbonylation of an unsaturated hydrocarbon represented by general formula (I) (preferably a compound obtained through the partial reduction of a diene compound) using carbon monoxide in the presence of HF, and thereafter reducing the cyclohexanecarbonyl compound. In formulae (I), (II), and (III), R1 represents an alkyl group having 1 to 4 carbon atoms, R2 represents an alkyl group having 1 to 4 carbon atoms, R3 represents an OH group, fluorine, or an OR4 group, and R4 represents an alkyl group having 1 to 4 carbon atoms.Type: ApplicationFiled: June 30, 2010Publication date: September 20, 2012Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Mitsuharu Kitamura, Shinji Kotachi, Shinya Nagasawa, Yoshiharu Ataka
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Publication number: 20110071070Abstract: The present invention relates to a perfume composition as a raw material of fruity perfumes which has a conventionally unknown peculiar fresh, woody, floral, grassy-leafy nuance and is capable of harmonizing with various perfumes to provide perfume preparations having a more sophisticated odor or scent. The perfume composition of the present invention includes a compound represented by the general formula (I): wherein R1 and R2 are each independently a hydrocarbon group having 1 to 4 carbon atoms; and R3 is a hydrocarbon group having 2 to 4 carbon atoms.Type: ApplicationFiled: March 2, 2009Publication date: March 24, 2011Applicant: KAO CORPORATIONInventors: Shinji Kotachi, Shinya Nagasawa, Satoshi Ohno
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Patent number: 7642385Abstract: The present invention relates to alcohol compounds having a scent of natural lily of the valley substantially without any woody scent limiting their applications to raw materials of perfume preparations, and a process for producing the alcohol compounds. The alcohol compounds are represented by the following general formula (I): wherein R1 is a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms; and any one of dotted lines represents a double bond, and the remaining three dotted lines each represent a single bond.Type: GrantFiled: June 21, 2007Date of Patent: January 5, 2010Assignee: Kao CorporationInventors: Shinji Kotachi, Shigeyoshi Tanaka, Satoshi Ohno
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Publication number: 20090182177Abstract: The present invention relates to alcohol compounds having a scent of natural lily of the valley substantially without any woody scent limiting their applications to raw materials of perfume preparations, and a process for producing the alcohol compounds. The alcohol compounds are represented by the following general formula (I): wherein R1 is a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms; and any one of dotted lines represents a double bond, and the remaining three dotted lines each represent a single bond.Type: ApplicationFiled: June 21, 2007Publication date: July 16, 2009Inventors: Shinji Kotachi, Shigeyoshi Tanaka, Satoshi Ohno
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Patent number: 7235275Abstract: A process for preparing an orange oil comprising the steps of mixing a raw material oil containing valencene with a high-boiling solvent having a boiling point exceeding 240° C. under normal pressure, to give a mixture, and fractionally distilling the mixture obtained, optionally comprising the step of subjecting to an alkali treatment the raw material oil before fractional distillation or a distillate fraction obtained after fractional distillation; and an orange oil obtained by the process as defined above.Type: GrantFiled: April 24, 2003Date of Patent: June 26, 2007Assignee: Kao CorporationInventors: Shinji Kotachi, Junko Ueda, Shigeyoshi Tanaka
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Publication number: 20060058547Abstract: There is provided a noble process for producing a salicylic ester for perfumes which comprises the step of transesterifying a salicylic lower alkyl ester with an alcohol having at least one carbon atom which is located adjacent to a hydroxyl-bonded carbon atom and has one or more hydrogen atoms bonded thereto, in the presence of a tin-based catalyst. The process of the present invention enables the salicylic ester to be produced at a high yield and is free from handling problems such as precipitation of solids in a distillation residue obtained after the reaction, and the catalyst used therein is reusable.Type: ApplicationFiled: August 31, 2005Publication date: March 16, 2006Applicant: Kao CorporationInventors: Takefumi Uehara, Satoshi Ohno, Shinji Kotachi, Shigeyoshi Tanaka
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Publication number: 20030203090Abstract: A process for preparing an orange oil comprising the steps of mixing a raw material oil containing valencene with a high-boiling solvent having a boiling point exceeding 240° C. under normal pressure, to give a mixture, and fractionally distilling the mixture obtained, optionally comprising the step of subjecting to an alkali treatment the raw material oil before fractional distillation or a distillate fraction obtained after fractional distillation; and an orange oil obtained by the process as defined above.Type: ApplicationFiled: April 24, 2003Publication date: October 30, 2003Applicant: KAO CORPORATIONInventors: Shinji Kotachi, Junko Ueda, Shigeyoshi Tanaka
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Patent number: 6617304Abstract: The invention discloses a method for the production of a macrocyclic lactone represented by a formula (2), which comprises subjecting a hydroxycarboxylic acid ester represented by a formula (1) to intramolecular esterification reaction. In the formulae (1) and (2), m is an integer of from 5 to 10, n is an integer wherein m+n becomes from 11 to 16, X represents —CH2—, —CH═CH—, —O—, —S— or —NH—, and R represents a hydrocarbon group having from (m+n+2) to 40 carbon atoms or a group represented by —(AO)pR1 wherein AO represents an alkyleneoxy group having from 2 to 4 carbon atoms, p is average addition mole number of alkylene oxide and R1 represents a hydrocarbon group having a specified number of carbon atoms so that the total number of carbon atoms of the —(AO)pR1 group becomes from (m+n+2) to 40.Type: GrantFiled: November 7, 2000Date of Patent: September 9, 2003Assignee: Kao CorporationInventors: Takashi Aoki, Shinji Kotachi, Junji Koshino
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Patent number: 6495706Abstract: The present invention provides a process for producing hydroxycarboxylic acid esters easily, further at a high reaction selectivity, by using an inexpensive catalyst. That is, the present invention provides a process for producing hydroxycarboxylic acid esters, which comprises hydrogenating dicarboxylic acid diesters having 3 to 20 carbon atoms in the dicarboxylic acid moiety in the presence of a copper catalyst comprising 1 to 40% by weight of copper as copper oxides.Type: GrantFiled: May 24, 2001Date of Patent: December 17, 2002Assignee: Kao CorporationInventors: Takashi Aoki, Shinji Kotachi, Taku Mimura, Junji Koshino
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Publication number: 20020016483Abstract: The present invention provides a process for producing hydroxycarboxylic acid esters easily, further at a high reaction selectivity, by using an inexpensive catalyst. That is, the present invention provides a process for producing hydroxycarboxylic acid esters, which comprises hydrogenating dicarboxylic acid diesters having 3 to 20 carbon atoms in the dicarboxylic acid moiety in the presence of a copper catalyst comprising 1 to 40% by weight of copper as copper oxides.Type: ApplicationFiled: May 24, 2001Publication date: February 7, 2002Applicant: Kao CorporationInventors: Takashi Aoki, Shinji Kotachi, Taku Mimura, Junji Koshino
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Patent number: 5874649Abstract: The object of the present invention resides in efficiently providing unsaturated alcohol from an .alpha.,.beta.-unsaturated aldehyde.The present invention provides a process for preparing unsaturated alcohol by selectively reducing the aldehyde group of an .alpha.,.beta.-unsaturated aldehyde in the presence of a primary or a secondary alcohol having 2 to 8 carbon atoms using an aluminum alcoholate to produce an unsaturated alcohol such as compounds represented by the formula (III). ##STR1## (wherein R represents an alkyl group having 1 to 3 carbon atoms) wherein the reaction is carried out with addition of a protonic acid.Type: GrantFiled: November 5, 1997Date of Patent: February 23, 1999Assignee: Kao CorporationInventors: Shigeyoshi Tanaka, Shinji Kotachi, Junji Koshino, Junko Yamamoto