Patents by Inventor Atsuhiro Adachi

Atsuhiro Adachi 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).

  • Process for producing alcohols
    Patent number: 6455743
    Abstract: A process for producing alcohols, which comprises subjecting a mixture comprising an aldehyde having from 2 to 5 carbon atoms and a polycondensate of the aldehyde at a weight ratio of from 95:5 to 5:95 to a mixing hydrogenation reaction in the presence of a catalyst to produce alcohols corresponding to the aldehydes at the same time wherein substantially no by-product is produced.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: September 24, 2002
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akio Ueda, Yuichi Fujita, Atsuhiro Adachi, Hiroki Emoto
  • Process for producing alcohols
    Patent number: 6444863
    Abstract: A process for producing alcohols, to obtain a straight-chain alcohol having a carbon number of n (where n=3 to 6), a branched chain alcohol having a carbon number of n (where n=3 to 6) and a branched chain alcohol having a carbon number of 2n (where n=3 to 6) from a mixed aldehyde comprising a straight-chain aldehyde having a carbon number of n (where n=3 to 6) and a branched chain aldehyde having a carbon number of n (where n=3 to 6) in an optional proportion, which comprises supplying the mixed aldehyde to a distillation column, withdrawing from the bottom of the column an aldehyde rich in the straight-chain aldehyde, dimerizing the straight-chain aldehyde, followed by hydrogenation to obtain the branched chain alcohol having a carbon number of 2n, while obtaining, as a fraction from the top of the column, an aldehyde rich in the branched chain aldehyde and having a straight-chain aldehyde concentration in the fraction of at least 30 wt %, subjecting the fraction to hydrog
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: September 3, 2002
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akio Ueda, Atsuhiro Adachi
  • PROCESS FOR PRODUCING ALCOHOLS
    Publication number: 20020019574
    Abstract: A process for producing alcohols, to obtain a straight-chain alcohol having a carbon number of n (where n=3 to 6), a branched chain alcohol having a carbon number of n (where n=3 to 6) and a branched chain alcohol having a carbon number of 2n (where n=3 to 6) from a mixed aldehyde comprising a straight-chain aldehyde having a carbon number of n (where n=3 to 6) and a branched chain aldehyde having a carbon number of n (where n=3 to 6) in an optional proportion, which comprises supplying the mixed aldehyde to a distillation column, withdrawing from the bottom of the column an aldehyde rich in the straight-chain aldehyde, dimerizing the straight-chain aldehyde, followed by hydrogenation to obtain the branched chain alcohol having a carbon number of 2n, while obtaining, as a fraction from the top of the column, an aldehyde rich in the branched chain aldehyde and having a straight-chain aldehyde concentration in the fraction of at least 30 wt %, subjecting the fraction to hydrog
    Type: Application
    Filed: May 20, 1999
    Publication date: February 14, 2002
    Inventors: AKIO UEDA, ATSUHIRO ADACHI