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    Continuous production of anthranilic acid
    2.
    发明授权
    Continuous production of anthranilic acid 失效
    连续生产硫酸

    公开(公告)号：US3847974A

    公开(公告)日：1974-11-12

    申请号：US7862270

    申请日：1970-10-06

    Applicant: BASF AG

    Inventor： ARMBRUST H ,  STURM H ,  KEMPTER F

    IPC: C07C67/00 ,  C07C227/00 ,  C07C227/04 ,  C07C227/22 ,  C07C229/56 ,  C07D265/26 ,  C07C101/54

    CPC classification number: C07D265/26

    Abstract: 1. A PROCESS FOR THE CONTINUOUS PRODUCTION OF ANTHRANILIC ACID WHICH COMPRISES REACTING A STRATING COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL SALTS OF PHTHALAMIC OF STAGES, THE FRIST REACTION AQUEOUS MEDIUM IN A PLURALITY OF STAGES, THE REACTION STAGES FOR CONVERTING THE STARTING COMPOUND INTO THE ALKALI METAL SALT OF PHENYL ISOCYANATE-2-CARBOXYLIC ACID BEING CARRIED OUT UNDER SUBSTANTIALLY ADIABATIC CONDITIONS WHILE SUBSTANTIALLY AVOIDING ANY BACKMIXING, THE RESULTING REACTION MIXTURE BEING IMMEDIATELY WITHDRAWN FROM THE REACTION ZONE OF SAID FIRST STAGES AND THEN SUPPLIED SUBSTNATIALLY WITHOUT BACKMIXING TO THE REACTION ZONE OF AT LEAST ONE SUBSEQUENT STAGE FOR HYDROLYSIS AND DECARBOXYLATION OF SAID PHENYL ISOCYANATE-2-CARBOXYLIC ACID INTO ANTHRANILLIC ACID, A REDUCING AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM BOROHYDRIDE, LITHIUM TRIETHOXY ALUMINUM HYDRIDE, SODIUM SULFIDE, SODIUM HYDROGEN SULFIDE, AMMONIUM SULFIDE, SULFUROUS ACID, SULFUR DIOXIDE, SODIUM DITHIONITE, SODIUM, THIOSULFATE, SODIUM FORMALDEHYDE SULFOXYLATE, THIOUREA DIOXIDE, HYDRAZINE AND ITS SALTS, GLUCOSE SODIUM SULFITE AND SODIUM BISULFATE BEING ADDED TO THE REACTION MIXTURE WITHDRAWN FROM THE REACTION ZONE OF SAID FIRST STAGES AND BEFORE THE REACTION HAS BEEN COMPLETED.

    3.
    发明专利
    未知

    公开(公告)号：BR7808211A

    公开(公告)日：1979-08-07

    申请号：BR7808211

    申请日：1978-12-14

    Applicant: BASF AG

    Inventor： KEMPTER F ,  SCHUPP E

    IPC: C08G14/00 ,  C08G14/06 ,  C08G59/00 ,  C08G59/62 ,  C08L61/34 ,  C08L63/00 ,  C09D5/44 ,  C09D163/00 ,  C25D13/06 ,  C09D3/58 ,  C09D5/40

    Abstract: Surface-coating binders and their use. The binders are reaction products of (A) Mannich bases obtained from one or more condensed phenols, free from ether groups, which contain two or more phenolic hydroxyl groups per molecule, one or more butadiene or isoprene homopolymers or copolymers which contain one or more groups per molecule and have a mean molecular weight of from 500 to 6,000, one or more secondary amines which contain one or more hydroxyalkyl groups per molecule, or a mixture of such secondary amines with another secondary amine, and formaldehyde or a formaldehyde donor, with (B) one or more epoxy resins. These surface-coating binders are used especially for the cathodic electrocoating of metal articles.

    4.
    发明专利
    未知

    公开(公告)号：BR8006639A

    公开(公告)日：1981-04-22

    申请号：BR8006639

    申请日：1980-10-15

    Applicant: BASF AG

    Inventor： KEMPTER F ,  SCHUPP E ,  GULBINS E

    IPC: C08G59/00 ,  C08G59/14 ,  C08G59/56 ,  C08G59/62 ,  C09D5/44 ,  C09D163/00 ,  C25D13/06 ,  C08F212/02 ,  C25D13/08

    Abstract: The invention concerns polyadducts and their use. The polyadducts, possessing nitrogen-basic groups, have a mean molecular weight of from 500 to 10,000 and contain groups, attached to aromatic rings, of the general formula (I) (I) where R1 and R2 are identical or different and each is hydrogen or methyl. In particular, these polyadducts are used, after protonizing with an acid, as binders for the cathodic electrocoating of metal articles.

    5.
    发明专利
    未知

    公开(公告)号：BR8002111A

    公开(公告)日：1980-11-25

    申请号：BR8002111

    申请日：1980-04-07

    Applicant: BASF AG

    Inventor： SCHUPP E ,  KEMPTER F ,  SCHENCK H ,  GULBINS E

    IPC: C08G12/00 ,  C08G12/02 ,  C08G12/46 ,  C08G59/00 ,  C08G59/14 ,  C08G59/40 ,  C08G59/64 ,  C08G65/26 ,  C08K5/29 ,  C09D5/44 ,  C09D163/00 ,  C25D13/06 ,  C08G59/18 ,  C09D5/40

    Abstract: Polyadducts, free from epoxide groups, are obtained from ammonia and epoxide compounds by reacting 1 mole of ammonia with from 1.2 to 2.0 equivalents of epoxide, so that if diepoxide compounds are used products of the general formula (I) are obtained, while if triepoxides and/or tetraepoxide compounds are used, by themselves, or together with diepoxide compounds, products of the general formula II (II) are produced; in these formulae, the E1's are identical or different hydroxyl-containing divalent radicals and the E2's are identical or different hydroxyl-containing trivalent or tetravalent radicals, resulting from the opening of the oxirane rings of epoxide compounds containing two, three or four epoxide groups in the molecule, n1, n3 and n5 are from 0 to 3, n2 and n4 are from 1 to 3 and X is 0 or 1, and one or more of the divalent radicals E1 in the general formlula (II) may or may not be replaced by polyvalent radicals E2. The novel polyadducts can be modified by reaction with aldehydes, ketones, monoepoxide compounds, carboxylic acids, carboxylic acid esters or isocyanates, or by protonation with an acid, and may be used, for example, for the cathodic electrocoating of metallic articles.

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