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    MEANS AND METHODS FOR MANUFACTURING RACEMIC ALANINE FOR THE MGDA SYNTHESIS
    101.
    发明公开
    MEANS AND METHODS FOR MANUFACTURING RACEMIC ALANINE FOR THE MGDA SYNTHESIS 审中-公开

    公开(公告)号：US20240301453A1

    公开(公告)日：2024-09-12

    申请号：US18268177

    申请日：2021-12-20

    Applicant: BASF SE

    Inventor： Sophie MAITRO-VOGEL ,  Michael BREUER ,  Dan-Tam Daniel TANG ,  Thomas SCHMIDT

    IPC: C12P13/06 ,  C07C227/12 ,  C12N9/90

    CPC classification number: C12P13/06 ,  C07C227/12 ,  C12N9/90 ,  C12Y501/01001

    Abstract: The present invention relates to the field of chemical manufacture. In particular, it relates to a method for manufacturing racemic methylglycinediacetic acid (MGDA) comprising the steps of contacting a solution comprising or being enriched in D-alanine or L-alanine to an alanine racemase at a temperature of at least 50° C. and alkaline conditions for a time sufficient to allow conversion of said solution into a racemic alanine solution, obtaining a racemic alanine solution, and chemically converting the racemic alanine into racemic MGDA. The invention further contemplates an alanine racemase which is capable of converting a solution comprising or being enriched in D-alanine or L-alanine into racemic alanine solution at a temperature of at least 50° C. and under alkaline conditions as well as the use of said alanine racemase for converting a solution comprising or being enriched in D-alanine or L-alanine into racemic alanine solution at a temperature of at least 50° C. and under alkaline conditions.

    POLYBUTYLENE TEREPHTHALATE COMPOSITION AND ARTICLE
    102.
    发明公开
    POLYBUTYLENE TEREPHTHALATE COMPOSITION AND ARTICLE 审中-公开

    公开(公告)号：US20240301162A1

    公开(公告)日：2024-09-12

    申请号：US18558431

    申请日：2022-04-27

    Applicant: BASF SE

    Inventor： Li Xia Wang ,  Zhen Ke Wei ,  Tao Liu ,  Li Rong He

    IPC: C08K3/04 ,  C08K7/14

    CPC classification number: C08K3/041 ,  C08K7/14 ,  C08K2201/001 ,  C08K2201/011

    Abstract: The present invention relates to a polybutylene terephthalate composition, comprising (A) 40 to 99.8% by weight of polybutylene terephthalate, (B) 0.2 to 10% by weight of at least one conductive filler selected from the group consisting of carbon nanotubes, carbon nanostructures, and a combination thereof, and (C) 0 to 50% by weight of glass fiber, each being based on the total weight of the poly butylene terephthalate composition, wherein the carbon nanostructures each comprise a plurality of carbon nanotubes which are branched, crosslinked, and/or sharing common walls with one another. The present invention also relates to an EMI shielding article produced from the polybutylene terephthalate composition.

    PROCESS FOR MAKING A SOLID ALKALI METAL SALT OF AN AMINOCARBOXYLATE COMPLEXING AGENT
    108.
    发明公开
    PROCESS FOR MAKING A SOLID ALKALI METAL SALT OF AN AMINOCARBOXYLATE COMPLEXING AGENT 审中-公开

    公开(公告)号：US20240294463A1

    公开(公告)日：2024-09-05

    申请号：US18268115

    申请日：2021-12-08

    Applicant: BASF SE

    Inventor： Michael Klemens MUELLER ,  Matthias VOGES ,  Markus HARTMANN ,  Frank JAEKEL ,  Astrid SCHMIDT

    IPC: C07C227/44

    CPC classification number: C07C227/44

    Abstract: Process for making a solid alkali metal salt (A) of an aminocarboxylate complexing agent, said process comprising the steps of



    (a) providing a 40 to 80% by weight aqueous solution or slurry comprising salt (A),
    (b) optionally, heating said slurry or solution to a temperature in the range of from 50 to 150° C.,
    (c) introducing the slurry or solution from step (a) or, if applicable, step (b) into an essentially horizontal cylindrical drying apparatus containing a stirring element that rotates around an essentially horizontal axis and that is charged with solid particles of salt (A), and
    (d) removing most of the water by evaporation,
    (e) removing solid salt (A) as granule.

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