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    3.
    发明专利
    未知

    公开(公告)号：ES2061254T3

    公开(公告)日：1994-12-01

    申请号：ES91911955

    申请日：1991-06-22

    Applicant: HOECHST AG

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

    IPC: C09K15/32 ,  C07F9/6571 ,  C07F9/6574 ,  C08K5/53 ,  C08K5/5377 ,  C08L101/00

    Abstract: PCT No. PCT/EP91/01158 Sec. 371 Date Dec. 23, 1992 Sec. 102(e) Date Dec. 23, 1992 PCT Filed Jun. 22, 1991 PCT Pub. No. WO92/00306 PCT Pub. Date Jan. 9, 1992.A dibenzo-[c,e] [1,2] oxaphosphorine of the formula I and process of making said compound (I) wherein n=1 or 2 and in which R1 is a monovalent or divalent aromatic radical wherein a Grignard compound R1(MgHal)n is reacted with 6-chloro-6H-dibenzo[c,e][1,2] oxaphosphorine. This compound optionally with phenolic antioxidants, provides stabilization in polymers.

    6.
    发明专利
    未知

    公开(公告)号：ES2064730T3

    公开(公告)日：1995-02-01

    申请号：ES90907020

    申请日：1990-05-16

    Applicant: HOECHST AG

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

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

    Abstract: Process for preparing aryl esters of phosphonous acid of formula (V), where A is non-existent or a direct bond or a divalent hydrocarbon bridge with 1 to 6 carbon atoms, which can be substituted by the groups mentioned below, or a heteroatom, cycloalkylidene with 4 to 8 carbon atoms or phenylalkylidene with 7 to 12 carbon atoms, n is equal to 1 or 2, R as a monovalent residue denotes certain non-aromatic or aromatic hydrocarbon residues, the aromatic residues denoting substituents such as alkyl, alkoxy, alkylthio, dialkylamino, aryl, aryloxy or halogen, and as a divalent residue denotes a phenylene or naththylene residue, which can carry non-aromatic hydrocarbon residues as substituents, R is a non-aromatic hydrocarbon residue with 1 to 18 carbon atoms, aryl, arylmethyl, arylethyl or arylisopropyl, each aryl containing 6 to 10 carbon atoms, and R denotes hydrogen or one of the groups mentioned under R . In a first stage a halogenated hydrocarbon R (-Hal)n, in which R has the above-mentioned meaning, n = 1 or 2, and the halogen has an atomic weight of at least 35, is converted under Grignard conditions with at least molar quantities of magnesium to the corresponding organomagnesium compounds R (MgHal)n. These are reacted in a second stage with phosphoric acid-bis-arylester halides of formula (VI), where R , R and Hal have the above-mentioned meanings, to form the phosphonous acid arylester (V). The invention also relates to a plastics moulding material, in particular a polyolefin moulding material, containing the phosphonous acid arylester of formula (V). The properties of the moulding material are superior to those of materials which contain phosphonites produced by prior art techniques.

    PROCESS FOR THE PREPARATION OF ORGANOPHOSPHORUS DERIVATIVES OF 2,4-DITERT-BUTYLPHENOL, OF 4,4'-DIHALOMAGNESIUM COMPOUNDS OF BIPHENYL AND THE USE OF THE ORGANOPHOSPHORUS DERIVATIVES FOR THE STABILIZATION OF PLASTICS, IN PARTICULAR IN POLYOLEFIN MOLDING COMPOSITIONS
    9.
    发明专利
    PROCESS FOR THE PREPARATION OF ORGANOPHOSPHORUS DERIVATIVES OF 2,4-DITERT-BUTYLPHENOL, OF 4,4'-DIHALOMAGNESIUM COMPOUNDS OF BIPHENYL AND THE USE OF THE ORGANOPHOSPHORUS DERIVATIVES FOR THE STABILIZATION OF PLASTICS, IN PARTICULAR IN POLYOLEFIN MOLDING COMPOSITIONS 未知

    公开(公告)号：CA2006077A1

    公开(公告)日：1990-06-21

    申请号：CA2006077

    申请日：1989-12-20

    Applicant: HOECHST AG

    Inventor： BOHSHAR 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 ,  C07F9/547

    Abstract: KOE 88/F 370 Process for the preparation of organophosphorus derivatives of 2,4-di-tert-butylphenol, of 4,4'-dihalomagnesium compounds of biphenyl and the use of the organophosphorus derivatives for the stabilization of plastics A process for the preparation of organophosphorus derivatives of 2,4-di-tert-butylphenol with a high proportion of organophosphorus derivatives of biphenyl, which comprises reacting, in a first step, 4,4'-dihalobi-phenyl whose halogen has an atomic weight of at least 35, under Grignard conditions with magnesium to form the corresponding Grignard compound and this is further reacted in a second step with bis(2,4-di-tert-butyl-phenyl) chlorophosphite of the formula IV IV with the formation of a mixture in which at least 50% by weight of the phosphorus is combined in the form of tetrakis(2,4-di-tert-butylphenyl) 4,4'-biphenylene-diphosphonite of the formula I I, the bonding of the phosphorus being determined by 31P-NMR analysis. The invention further relates to a polyolefin molding composition containing tetrakis(2,4-di-tert-butylphenyl) 4,4'-biphenylenediphosphonite of the formula I which was prepared by reaction of a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 with magnesium to form the Grignard compound and by subsequent HOE 88/F 370K reaction with bis(2,4-di-tert-butylphenyl) chlorophosphite. The molding composition has improved properties relative to those molding compositions which contain the said phosphonite prepared by the prior art. The invention furthermore 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, during which a 4,4'-dihalobi-phenyl whose halogen has an atomic weight of at least 35 is reacted with fine-particle magnesium which is held in suspension.

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