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    11.
    发明专利
    未知

    公开(公告)号：FI95265B

    公开(公告)日：1995-09-29

    申请号：FI896086

    申请日：1989-12-19

    Applicant: HOECHST AG

    Inventor： BOEHSHAR MANFRED ,  KLEINER HANS-JERG ,  WALDMANN KARL ,  PFAHLER GERHARD

    IPC: C09K15/32 ,  C07F3/02 ,  C07F9/40 ,  C07F9/48 ,  C08K5/53 ,  C08K5/5393 ,  C08L23/00 ,  C08L23/02

    Abstract: Process for the preparation of organophosphorus derivatives of 2,4-di-t-butylphenol having a high content of organophosphorus derivatives of biphenyl, characterised in that, in the first step, a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 is reacted under Grignard conditions with magnesium to give the corresponding Grignard compound, which is further reacted, in a second step, with bis(2,4-di-t-butylphenyl) chlorophosphite of the formula IV … … to form a mixture in which at least 50% by weight of the phosphorus is bound in the form of tetrakis(2,4-di-t-butylphenyl)-4,4'-biphenylene diphosphonite of the formula I … … the bonding of the phosphorus being determined by P-NMR analysis. … The invention furthermore relates to a polyolefin moulding composition which contains tetrakis(2,4-di-t-butylphenyl)- 4,4'-biphenylene diphosphonite of the formula I prepared by reacting a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35, with magnesium to give the Grignard compound and subsequent reaction thereof with bis(2,4-di-t-butylphenyl) chlorophosphite. … The moulding composition has improved properties compared with moulding compositions which contain said phosphonite prepared in accordance with the prior art. … The invention also relates to a process for the preparation of 4,4'-dihalomagnesium compounds of biphenyl by reacting a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 with magnesium in the absence of an entrainer, in which process a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 is reacted with finely divided magnesium kept in suspension.

    NOVEL DIARYLPHOSPHINOUS ACID ARYL ESTERS, A PROCESS FOR THEIR PREPARATION AND THEIR USE FOR STABILIZING PLASTICS, IN PARTICULAR POLYOLEFIN MOLDING COMPOSITIONS
    12.
    发明专利
    NOVEL DIARYLPHOSPHINOUS ACID ARYL ESTERS, A PROCESS FOR THEIR PREPARATION AND THEIR USE FOR STABILIZING PLASTICS, IN PARTICULAR POLYOLEFIN MOLDING COMPOSITIONS 未知

    公开(公告)号：CA2074614A1

    公开(公告)日：1993-01-27

    申请号：CA2074614

    申请日：1992-07-24

    Applicant: HOECHST AG

    Inventor： REGNAT DIETER ,  BOEHSHAR MANFRED ,  KLEINER HANS-JERG ,  PFAHLER GERHARD

    IPC: C07F9/46 ,  C08K5/09 ,  C08K5/10 ,  C08K5/53 ,  C08K5/5377 ,  C08L23/00

    Abstract: HOE 91/F 237 of the disclosure: Novel diarylphosphinous acid aryl esters, a process for their preparation and their use for stabilizing plastics, in particular polyolefin molding compositions Diarylphosphinous acid aryl esters of the formula (I) (I) where n = 1 or 2, in which R1 and R2 independently of one another, as monovalent radicals, are a phenyl or naphthyl radical, each of which can carry 1 to 5 substituents, in which the substituents are identical or different and are a nonaromatic hydrocarbon radical, an alkoxy radical, alkylthio radical or dialkylamino radical having in each case 1 to 8 carbon atoms, aryl or aryloxy having in each case 6 to 10 carbon atoms or halogen having an atomic number of 9 to 35, and R2, as a divalent radical, is a phenylene or biphenylene radical, which is unsubstituted or substituted by up to 4 nonaromatic hydrocarbon radicals having 1 to 8 carbon radicals, or a naphthylene radical, which is unsubstituted or carries 1 to 4 non-aromatic hydrocarbon radicals having 1 to 8 carbon atoms as substituents, and R3, R4 and R5 independently of one another are hydrogen or a branched or unbranched hydrocarbon radical having 1 to 8 carbon atoms. The invention furthermore relates to a process for the preparation of compounds of the formula (I) and to their use for stabilizing plastics, in particular polymerization plastics.

    ARYLESTERS OF PHOSPHONOUS ACID, PROCESS FOR PREPARING THEM AND THEIR USE TO STABILIZE PLASTICS, IN PARTICULAR POLYOLEFIN MOULDING MATERIALS
    13.
    发明专利
    ARYLESTERS OF PHOSPHONOUS ACID, PROCESS FOR PREPARING THEM AND THEIR USE TO STABILIZE PLASTICS, IN PARTICULAR POLYOLEFIN MOULDING MATERIALS 未知

    公开(公告)号：CA2058762C

    公开(公告)日：2001-05-08

    申请号：CA2058762

    申请日：1990-05-16

    Applicant: HOECHST AG

    Inventor： BOEHSHAR MANFRED ,  KLEINER HANS-JERG ,  PFAHLER GERHARD

    IPC: C07F9/48 ,  C07F9/6571 ,  C07F9/6574 ,  C08K5/53 ,  C08K5/5393 ,  C08L23/02 ,  C09K15/32 ,  C08L101/00

    Abstract: A process for the preparation of aryl phosphonites of the formula V (see formula I) in which A is non-existent or a direct bond or a divalent hydrocarbon bridge having 1 to 6 carbon atoms which may be substituted by groups mentioned further below under R1, or is a hetero atom, cycloalkylidene having 4 to 8 carbon atoms or phenylalkylidene having 7 to 12 carbon atoms, n is 1 or 2, R1 as monovalent radical is certain non-aromatic or aromatic hydrocarbon radicals, in which the aromatic radicals are substituents such as alkyl, alkoxy, alkylthio, dialkylamino, aryl, aryloxy or halogen, and as divalent radical a phenylene or naphthylene radical, which may carry non-aromatic hydrocarbon radicals as substituents, R2 is a non-aromatic hydrocarbon radical having 1 to 18 carbon atoms, aryl, arylmethyl, arylethyl or arylisopropyl, in which the aryl in each case contains 6 to carbon atoms, and R3 is hydrogen or a group mentioned under R2, in which process in a first step a hydrocarbon halide R1(-Hal)n, in which R1 has the abovementioned meaning, n is = 1 or 2 and the halogen has an atomic weight of at least 35, is reacted under Grignard conditions with at least molar amounts of magnesium to give the corresponding Grignard compounds R1(MgHal)n and these compounds are reacted in a second step with bisaryl halophosphonites of the formula VI (see formula I) , in which R2, R3 and Hal ha,e the abovementioned meaning, with the formation of the aryl phosphonites V. The invention further relates to a plastic molding composition, in particular a polyolefin molding composition containing aryl phosphonites of the formula V. The molding composition is distinguished by improved properties compared with those molding compositions containing phosphonites prepared by the prior art.

    14.
    发明专利
    未知

    公开(公告)号：FI952202A0

    公开(公告)日：1995-05-08

    申请号：FI952202

    申请日：1995-05-08

    Applicant: HOECHST AG

    Inventor： LOTZ ANDREAS ,  BOEHSHAR MANFRED

    IPC: A23C9/133 ,  A23C9/156 ,  A23L2/60 ,  A23L27/30 ,  A23L

    Abstract: Sweetening agent comprises one or more sweeteners (I) and one or more deoxy sugars (II). Also claimed is the prepn. of the agent are produced by mixing (I) and (II) in powder form, opt. by spray drying an aq. soln. contg. (I) and (II). Pref. (I) is acesulfam K, aspartame, Na cyclamate, saccharin, neohesperidine, dihydrochalcone, trichlorogalacto-sucrose, alitame, thaumatin and stevioside, esp. mixts. of acesulfam K with aspartame or Na cyclamate. (II) is rhamnose or fucose.

    20.
    发明专利
    未知

    公开(公告)号：NO895141L

    公开(公告)日：1990-06-22

    申请号：NO895141

    申请日：1989-12-20

    Applicant: HOECHST AG

    Inventor： BOEHSHAR MANFRED ,  KLEINER HANS-JERG ,  WALDMANN KARL ,  PFAHLER GERHARD

    IPC: C09K15/32 ,  C07F3/02 ,  C07F9/40 ,  C07F9/48 ,  C08K5/53 ,  C08K5/5393 ,  C08L23/00 ,  C08L23/02

    Abstract: Process for the preparation of organophosphorus derivatives of 2,4-di-t-butylphenol having a high content of organophosphorus derivatives of biphenyl, characterised in that, in the first step, a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 is reacted under Grignard conditions with magnesium to give the corresponding Grignard compound, which is further reacted, in a second step, with bis(2,4-di-t-butylphenyl) chlorophosphite of the formula IV … … to form a mixture in which at least 50% by weight of the phosphorus is bound in the form of tetrakis(2,4-di-t-butylphenyl)-4,4'-biphenylene diphosphonite of the formula I … … the bonding of the phosphorus being determined by P-NMR analysis. … The invention furthermore relates to a polyolefin moulding composition which contains tetrakis(2,4-di-t-butylphenyl)- 4,4'-biphenylene diphosphonite of the formula I prepared by reacting a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35, with magnesium to give the Grignard compound and subsequent reaction thereof with bis(2,4-di-t-butylphenyl) chlorophosphite. … The moulding composition has improved properties compared with moulding compositions which contain said phosphonite prepared in accordance with the prior art. … The invention also relates to a process for the preparation of 4,4'-dihalomagnesium compounds of biphenyl by reacting a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 with magnesium in the absence of an entrainer, in which process a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 is reacted with finely divided magnesium kept in suspension.

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