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    PROCESS FOR THE PREPARATION OF A FURFURAL DERIVATIVE COMPRISING NEUTRALIZING AN ACID REACTION MIXTURE
    11.
    发明申请
    PROCESS FOR THE PREPARATION OF A FURFURAL DERIVATIVE COMPRISING NEUTRALIZING AN ACID REACTION MIXTURE 审中-公开

    公开(公告)号：US20180186761A1

    公开(公告)日：2018-07-05

    申请号：US15736037

    申请日：2016-07-01

    Applicant: Synvina C.V.

    Inventor： Johannes Maria Franciscus Sijben ,  Etienne Mazoyer ,  Ana Sofia Vagueiro De Sousa Dias ,  Gerardus Johannes Maria Gruter

    IPC: C07D307/48

    CPC classification number: C07D307/48 ,  C07D307/46

    Abstract: A furfural derivative having the chemical formula (1) where R represents hydrogen, an alkyl group or an acyl group, is prepared in a process, which process includes reacting a fructose-and/or glucose-containing starting material with a liquid hydroxyl group-containing compound of formula R—OH in the presence of an acid catalyst at a reaction temperature in the range of 150 to 300° C. to produce a primary acid reaction mixture including the furfural derivative of chemical formula (1); separating part of the liquid hydroxyl group-containing compound from the primary acid reaction mixture to yield a secondary acid reaction mixture; neutralizing the secondary acid reaction mixture to a pH-value of at least 3 to obtain a neutralized reaction mixture; and purifying the neutralized reaction mixture to recover the furfural derivative of chemical formula (1).

    LAYERED POLYESTER FILM
    14.
    发明申请
    LAYERED POLYESTER FILM 审中-公开

    公开(公告)号：US20200269560A1

    公开(公告)日：2020-08-27

    申请号：US16066232

    申请日：2016-12-26

    Applicant: TOYOBO CO., LTD. ,  SYNVINA C.V.

    Inventor： Jun INAGAKI ,  Kaoru SAWADA ,  Yukihiro NUMATA ,  Jesper Gabriel VAN BERKEL

    IPC: B32B27/36 ,  B32B27/40 ,  B32B27/30 ,  C08G63/672

    Abstract: To provide a layered polyester film having excellent mechanical properties, transparency, heat resistance, and gas barrier property. A layered polyester film including a polyester film and a thin film layer, wherein the polyester film is a biaxially oriented polyester film including a dicarboxylic acid component containing mainly a furandicarboxylic acid and a glycol component containing mainly ethylene glycol, the covering layer is formed on at least one surface of the polyester film, and the layered polyester film has a plane orientation coefficient ΔP of not less than 0.005 and not more than 0.200, and a thickness of the layered polyester film is not thinner than 1 μm and not thicker than 300 μm.

    Process for the preparation of a furfural derivative
    16.
    发明授权
    Process for the preparation of a furfural derivative 有权

    公开(公告)号：US10351543B2

    公开(公告)日：2019-07-16

    申请号：US15736033

    申请日：2016-07-01

    Applicant: Synvina C.V.

    Inventor： Johannes Maria Franciscus Sijben ,  Etienne Mazoyer ,  Ana Sofia Vagueiro De Sousa Dias ,  Gerardus Johannes Maria Gruter

    IPC: C07D307/50

    Abstract: A furfural derivative having the chemical formula (1) wherein R represents hydrogen, an alkyl group or an acyl group, is prepared in a process, which process includes reacting a fructose- and/or glucose-containing starting material with a liquid hydroxyl group-containing compound of formula R—OH in the presence of an acid catalyst at a reaction temperature in the range of 150 to 300° C. to produce an acid reaction mixture including the furfural derivative of chemical formula (1), which acid reaction mixture has a pH-value of smaller than 3; neutralizing the acid reaction mixture to a pH-value in the range of 3 to 6.5 to provide a partially neutralized reaction mixture; and purifying the partially neutralized reaction mixture to recover the furfural derivative of chemical formula (1).

    PROCESS FOR THE PREPARATION OF A POLYESTER
    18.
    发明申请
    PROCESS FOR THE PREPARATION OF A POLYESTER 审中-公开

    公开(公告)号：US20180258219A1

    公开(公告)日：2018-09-13

    申请号：US15759243

    申请日：2016-09-14

    Applicant: Synvina C.V.

    Inventor： Laszlo Sipos

    IPC: C08G63/16 ,  C08G63/78

    CPC classification number: C08G63/16 ,  C08G63/181 ,  C08G63/78

    Abstract: A polyester including ethylene 2,5-furandicarboxylate units is prepared in a process, where in an esterification step a 2,5-furandicarboxylate compound is reacted with ethylene glycol to form an ester composition, including components with 2-hydroxyethyl and 2,5-furandicarboxylate moieties; where in a polycondensation step the ester composition thus obtained is subjected to polycondensation at reduced pressure in the presence of a polycondensation catalyst to obtain a polycondensate; and where during the polycondensation step 2,5-furandicarboxylic acid is added to the ester composition.

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