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30419 条记录 (耗时 0.047 秒)

    Method for obtaining melanin from invertebrate biomass and the product obtained therefrom
    42.
    发明授权
    Method for obtaining melanin from invertebrate biomass and the product obtained therefrom 有权

    公开(公告)号：US11981818B2

    公开(公告)日：2024-05-14

    申请号：US17910351

    申请日：2021-03-12

    申请人： INSECTTA PTE. LTD.

    发明人： Jun Wei Phua ,  Christoph Johann Heinrich Ottenheim

    IPC分类号： C09B61/00

    CPC分类号： C09B61/00

    摘要： The present disclosure provides a method for obtaining melanin from invertebrate biomass. The method may comprise rupturing the invertebrate biomass to form raw material; demineralizing the raw material to form a first solid fraction; deproteinating the first solid fraction to form a second solid fraction; liberating a melanin from the second solid fraction resulting in a supernatant comprising the melanin; extracting the supernatant; and precipitating the melanin. The present disclosure further provides a purified melanin obtained from invertebrate biomass.

    Disperse azo dyes, a process for the preparation thereof and the use thereof
    49.
    发明授权
    Disperse azo dyes, a process for the preparation thereof and the use thereof 有权

    公开(公告)号：US11946198B2

    公开(公告)日：2024-04-02

    申请号：US17792982

    申请日：2021-01-13

    申请人： Huntsman Advanced Materials Licensing (Switzerland) GMBH

    发明人： Ralf Petermann ,  Urs Lauk ,  Kevin Murer ,  Simon Pfister ,  Yvonne Pesek

    IPC分类号： C09B29/00 ,  C09B29/01 ,  C09B29/036 ,  C09B56/12 ,  C09B67/38 ,  D06P1/18 ,  D06P1/19 ,  D06P1/20 ,  D06P3/54

    CPC分类号： D06P1/18 ,  C09B29/0007 ,  C09B29/0051 ,  C09B56/12 ,  C09B67/008 ,  D06P1/19 ,  D06P1/20 ,  D06P3/54

    摘要： The present invention relates to azo dyes of formula (1), wherein D is a radical of formula (2) or (3), R1 and R2 independently denote hydrogen; C6-C10 aryl which is unsubstituted or substituted by cyano, carboxy, hydroxy, halogen, C1-C6alkyl, or C1-C6alkoxy; C1-C12alkyl which may be interrupted one or more times by —O—, —S—, —NR4—, —CO—, —COO— or —OOC—, and is unsubstituted or substituted by cyano, carboxy, hydroxy, C6-C10 aryl, or C6-C10 aryloxy, which C6-C10 aryl or C6-C10 aryloxy is unsubstituted or substituted by cyano, carboxy, hydroxy, halogen, C1-C6alkyl, or C1-C6alkoxy; R3 and R4 are each independently of the other hydrogen, halogen, nitro, cyano, trifluoromethyl, carboxy, C1-C6alkyl, C1-C6alkoxy, C1-C6alkylcarbonyl, C6-C10 arylcarbonyl, C1-C6alkoxycarbonyl, C1-C6alkylsulfonyl, C1-C6alkylsulfonylamino or C1-C4 alkanoylamino; and R5 is halogen, nitro, cyano, trifluoromethyl, carboxy, C1-C6alkyl, C1-C6alkoxy, C1-C6alkylcarbonyl, C6-C10 arylcarbonyl, C1-C6alkoxycarbonyl, C1-C6alkylsulfonyl, C1-C6alkylsulfonylamino or C1-C4 alkanoylamino; and R6, R7, R8 and R9 independently of each other are hydrogen, hydroxy, halogen, cyano, nitro or C1-C4 alkanoylamino, and the radicals X independently denote N or C—H, with the proviso that at least one radical X denotes C—H, which are distinguished by their good lightfastness properties.