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1.发明专利
公开(公告)号：CA1068044A
公开(公告)日：1979-12-11
申请号：CA239929
申请日：1975-10-17
Applicant: HOECHST AG
Inventor： HUBER BERND , KLEINER HANS-JERG , NEUMAIER HUBERT
IPC: C08F220/44 , D01F6/18 , C08F220/46 , D01F6/40
Abstract: of the disclosure: The invention relates to filaments and fibers the filament-forming substance of which is a copolymer of from 35 to 85 weight % of acrylonitrile, from 5 to 45 weight % of vinyl chloride, vinyl bromide and/or vinylindene chloride, from 5 to 30 weight % of carboxyphospinic acid derivatives of the formula where R1 is lower alkyl having up to 8 carbon atoms, or CH2C1-, R2 is lower alkyl having up to 8 carbon atoms in which a hydrogen atom may be substituted by a halogen atom in case of R1 being CH2C1-, and R3 is hydrogen or methyl, from 0 to 15 weight % of other unsaturated compounds having an activated double bond; the weight percentages being relative to the total amount of monomers, and a process for their manufacture. The filaments obtained are self-extinguishing and excel furthermore by their thermostability and their high degree of whiteness.
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公开(公告)号：CA1199934A
公开(公告)日：1986-01-28
申请号：CA444347
申请日：1983-12-28
Applicant: HOECHST AG
Inventor： NEUMAIER HUBERT
Abstract: PROCESS FOR MAKING ARYLDICHLOROPHOSPHANES The disclosure relates to a process for making aryldichlorophosphanes of the general formula in which R1, R2 and R3 being identical or different each stand for a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms, a halogen atom, an aryl group or an aryloxy group by reacting an arene of the general formula in which R1, R2 und R3 have the meanings given above, with at least 4 mols phosphorus(III)chloride per mol arene in the presence of aluminum chloride, boiling the mixture over a period of several hours and subsequently precipitating the aluminum chloride by adding a complexing agent, filtering and distillatively working up the filtrate. More particularly, the disclosure provides for 0.05 to 0.9 mol aluminum chloride to be used per mol arene and for 1 - 3 mols finely ground alkali metal chloride to be used as the complexing agent per mol aluminum chloride.
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公开(公告)号：NO136790B
公开(公告)日：1977-08-01
申请号：NO182271
申请日：1971-05-13
Applicant: HOECHST AG
Inventor： NEUMAIER HUBERT , VOGT WILHELM , SENNEWALD KURT , SCHUELLER RICHARD , LENZ GUENTHER
IPC: C07C20060101 , C07C255/24 , C07C255/25 , C07C121/44
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公开(公告)号：DD114089A5
公开(公告)日：1975-07-12
申请号：DD17957374
申请日：1974-06-28
Applicant: HOECHST AG
Inventor： NEUMAIER HUBERT , FINKE MANFRED , SCHUELLER RICHARD
Abstract: Production of halogen-containing tertiary phosphine oxides of the general formula I R1O PARALLEL ANGLE P-R3 (I) R2 in which the substituents R1, R2 and R3, being identical or different, stand for an alkyl, alkenyl, aryl or aralkyl radical, at least one of those radicals containing at least one aliphatically combined halogen atom. The compounds are made by reacting one or more compounds of the general formula II R4O PARALLEL ANGLE P-R6 (II) R5 in which R4, R5 and R6, being identical or different, stand for an alkyl, alkenyl, aryl or aralkyl radical, at least one of those R4, R5 and R6 radicals containing an aliphatically combined hydroxyl group, with at least equivalent proportions, based on the number of hydroxyl groups, of gaseous hydrogen halide with agitation, if desired, at temperatures within the range about 100 DEG and 300 DEG C; freeing the reaction mixture, during the reaction or after termination thereof, from water originating from the reaction; and separating from the resulting reaction mixture the halogen-containing tertiary phosphine oxide by distillation or crystallization.
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公开(公告)号：CA1143383A
公开(公告)日：1983-03-22
申请号：CA355597
申请日：1980-07-07
Applicant: HOECHST AG
Inventor： OHORODNIK ALEXANDER , NEUMAIER HUBERT , GEHRMANN KLAUS
Abstract: PRODUCTION OF CHLOROACETYL CHLORIDE The invention relates to a process for making chloroacetyl chloride by subjecting acetyl chloride to a chlorination reaction. To this end, the invention provides for acetyl chloride in vapor form to be reacted with liquefied monochloroacetic acid in the presence of a stream of hydrogen chloride in a reaction zone heated to 110 to 180.degree. C with the resultant formation of chloroacetyl chloride, the acetyl chloride and monochloroacetic acid being used in stoechiometric proportions or the monochloroacetic acid being used in a molar excess. Next, the reaction mixture is treated so as to expel a mixture formed of chloroacetyl chloride and unreacted acetyl chloride and the acid chloride mixture is subjected to distillative treatment so as to separate chloroacetyl chloride therefrom.
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Patent Agency Ranking
公开(公告)号：CA1143382A
公开(公告)日：1983-03-22
申请号：CA357710
申请日：1980-08-06
Applicant: HOECHST AG
Inventor： OHORODNIK ALEXANDER , NEUMAIER HUBERT , GEHRMANN KLAUS
IPC: C07F9/34
Abstract: PRODUCTION OF 2-CHLOROFORMYLETHYLMETHYL- PHOSPHINIC ACID CHLORIDES The invention relates to a process for making 2-chloroformylethylmethylphosphinic acid chlorides of the general formula: in which R1 and R2 each stand for hydrogen or CH3. To this end, methyldichlorophosphane is reacted with acrylic acid, methacrylic acid or crotonic acid at elevated temperature. More particularly, a solution of methyldichlorophosphane in phosphorus trichloride, the solution originating from a reaction of phosphorus trichloride with methane at temperatures higher than 500.degree. C, is used. The reaction is effected at temperatures within the range 50 to 90.degree. C in the presence of hydrogen chloride; and the phosphorus trichloride is distilled off.
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公开(公告)号：CA1030161A
公开(公告)日：1978-04-25
申请号：CA222998
申请日：1975-03-25
Applicant: HOECHST AG
Inventor： LIPPSMEIER BERND , HESTERMANN KLAUS , NEUMAIER HUBERT
IPC: C07F9/53
Abstract: Production of tertiary phosphine oxides of the general formula (I): (I) in which the substituents R1 and R2, being identical or different, each stand for an alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl or aryl radical having from 1 to 18 carbon atoms. The phosphine oxides are made by splitting off formaldehyde and hydrogen halide at temperatures within the range about 150 DEG and 350 DEG C, in the presence of hydrogen halide, from a molten compound of the general formula (II): (II) in which R1 and R2 have the meanings given above and X stands for halogen; separating the formaldehyde and hydrogen split off from the reaction mixture, and treating the resulting crude product so as to separate the compound of general formula (I) therefrom.
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公开(公告)号：CA1030160A
公开(公告)日：1978-04-25
申请号：CA222635
申请日：1975-03-20
Applicant: HOECHST AG
Inventor： LIPPSMEIER BERND , HESTERMANN KLAUS , NEUMAIER HUBERT
Abstract: 1481897 Preparing halogen-containing tertiary phosphine oxides HOECHST AG 27 Feb 1975 [16 March 1974] 8259/75 Heading C2P A halogen-containing tertiary phosphine oxide of the general formula in which R 1 stands for an alkyl, halogenoalkyl, alkenyl, halogenoalkenyl, alkinyl or halogenoalkinyl radical, each of these radicals containing up to 18 carbon atoms, or stands for a cycloalkyl, a halogenated cycloalkyl, an aryl, a halogenated aryl, an aralkyl or a halogenated aralkyl radical, and X stands for halogen, is obtained by subjecting a compound of the general formula [(HOCH 2 ) 3 PR]+X- in which R stands for an alkyl, halogenoalkyl, alkenyl, halogenoalkenyl, alkinyl or halogenoalkinyl radical, each of these radicals containing up to 18 carbon atoms, or stands for a cycloalkyl, a halogenated cycloalkyl, an aryl, a halogenated aryl, an aralkyl or a halogenated aralkyl, or a - CH 2 OH- radical, and X stands for halogen, to thermal treatment in the presence of a hydrogen halide at atmospheric or at elevated pressure so as to split off water and formaldehyde in vapour form therefrom, freeing the resulting reaction mixture from the said components in vapour form, terminating the reaction, stripping off any residual hydrogen halide from the reaction mixture by introducing an inert gas, e.g. nitrogen, CO 2 or argon, and submitting the remaining crude acidic product to distillation or recrystallization. The water and formaldehyde are preferably split off thermally at between 130 to 250 C. at atmospheric pressure or under a pressure of up to 20 atmospheres gauge and the hydrogen halide is generally used in an amount which is less than stoichiometric with respect to the number of OH groups in the starting material. The water and formaldehyde may be split off from a melt or from a solution of the starting material in an inert solvent which forms an azeotrope with water in which case they may be removed continuously from the reaction mixture in admixture with the inert solvent. The crude acidic product may be neutralized with a metal carbonate and the water of neutralization removed, prior to the final distillation or crystallization step.
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公开(公告)号：CA1112666A
公开(公告)日：1981-11-17
申请号：CA327860
申请日：1979-05-18
Applicant: HOECHST AG
Inventor： NEUMAIER HUBERT
Abstract: PRODUCTION OF HALOGENOMETHYLPHOSPHINIC ACID HALIDES The invention relates to a process for making halogenomethylphosphinic acid halides of the general formula: XCH2(R)P(O)X in which R stands for an alkyl, halogenoalkyl, aralkyl, halogenoaralkyl, aryl or halogenoaryl group with up to 18 carbon atoms and X stands for a halogen atom. The compounds are made by reacting an organyldihalogenophosphane of the general formula: in which R and X have the meanings given above, with trioxane in the presence of a Lewis acid or protonic acid as a catalyst, the reaction being effected at temperatures of 80 to 250.degree.C.
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公开(公告)号：CA1083179A
公开(公告)日：1980-08-05
申请号：CA262143
申请日：1976-09-27
Applicant: HOECHST AG
Inventor： STAENDEKE HORST , NEUMAIER HUBERT
Abstract: PRODUCTION OF DIALKYLPHOSPHINE OXIDES. Production of dialkylphosphine oxides of the general formula: in which R1 and R2 each stand for an alkyl group having from 1 to 4 carbon atoms by subjecting a dialkylchlorophosphine of the general formula: in which R1 and R2 have the meanings given above, or an addition product thereof with hydrogen chloride, to alcoholysis with an aliphatic C1 - C4 alcohol in the presence of a protective gas at temperatures between -30 and +30.degree.C, and subjecting the resulting alcoholysate to thermolysis. The compounds are more specifically produced by continuously adding the dialkylchlorophosphine component to the alcohol; subjecting the resulting alcoholysate to thermolysis in a heated separation zone; introducing into the separation zone, countercurrently to the alcoholysate, 10 to 150 l/h of a protective gas, per liter of alcoholysate; removing simultaneously from the separation zone the gaseous thermolysis products and, separately from said products, an alcoholic solution containing desirable final product; neutralizing the alcoholic solution and recovering the final product from said solution in known manner.
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