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公开(公告)号:US3875186A
公开(公告)日:1975-04-01
申请号:US40508273
申请日:1973-10-10
Applicant: DEGUSSA
Inventor: HEIN HILMAR , JANZON KARLHEINZ , WEIGERT WOLFGANG , LIEDTKE CHRISTA , MULLER RUDOLF
IPC: C07D307/89 , B01J27/00 , C07B61/00 , C07C51/363 , C07C63/14
CPC classification number: C07C51/363 , C07C63/68
Abstract: Tetrabromophthalic anhydride is produced by brominating phthalic anhydride at elevated temperatures in the presence of sulfuric acid and a bromination catalyst using bromine and hydrogen peroxide as the brominating agent.
Abstract translation: 四溴邻苯二甲酸酐通过在硫酸和溴化催化剂的存在下在升高的温度下溴化邻苯二甲酸酐而使用溴和过氧化氢作为溴化剂来制备。
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公开(公告)号:CA1144936A
公开(公告)日:1983-04-19
申请号:CA342418
申请日:1979-12-20
Applicant: DEGUSSA
Inventor: SCHWARZ RUDOLF , KLEINSCHMIT PETER , LIEDTKE CHRISTA , WOLFF SIEGFRIED
IPC: C08L7/00 , C07F7/08 , C07F7/12 , C07F7/18 , C08G75/02 , C08G75/14 , C08K5/5425 , C08K5/548 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L101/00 , C08K5/54
Abstract: Bis-(silyl-ethyl)-oligosulphide obtained by reacting a vinyl silane having the formula (CH2=CH)m-SiR?R4-(m+n) wherein R represents chlorine, iodine, C1-C3-alkoxy, 2-methoxy-ethoxy, 2-ethoxy-ethoxy or hydroxy, R1 represents C1-C3-alkyl, phenyl or C5-C7-cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m + n is 1, 2 or 3, with sulphur and, when required, with hydrogen sulphide in a molar ratio ranging from 1:2.5 to 1:10 and of vinyl silane to hydrogen sulphide from 1:0 to 0:5 at a temperature between approximately 100 and 200.degree.C under a pressure ranging from 1 to 25 bars (total pressure at the reaction temperature) and in the presence of Sulphidation catalysts and when required hydrolysis or partial hydrolysis of the reaction product. The corresponding process of production and the use of a bis-(silyl-ethyl)-oligosulphide as a reinforcing additive (adhesion promoter) in a crosslinkable rubber mixture containing a silicate filler and when required carbon black as well as sulphur and other conventional mixture components are also disclosed.
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公开(公告)号:DD147945A5
公开(公告)日:1981-04-29
申请号:DD21746279
申请日:1979-12-07
Applicant: DEGUSSA
Inventor: SCHWARZ RUDOLF , KLEINSCHMIDT PETER , LIEDTKE CHRISTA , WOLFF SIEGFRIED
IPC: C08L7/00 , C07F7/08 , C07F7/12 , C07F7/18 , C08G75/02 , C08G75/14 , C08K5/5425 , C08K5/548 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L101/00
Abstract: Novel bis-(silylethyl)-oligosulphides are obtained by reacting a vinyl silane of the formula (CH2=CH)m-SiRn1R4-(m+n) in which R represents chlorine, bromine, iodine, C1-C3-alkoxy, 2-methoxyethoxy, 2-ethoxyethoxy or hydroxy, R1 represents C1-C3-alkyl, phenyl or C5-C7-cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m+n is 1, 2 or 3 with sulphur as well as in a given case hydrogen sulphide in molar ratios of vinyl silane to sulphur of from 1:2.5 to 1:10 and vinyl silane to hydrogen sulphide of from 1:0 to 1:5 at temperatures between about 100 DEG and 200 DEG C. under pressure of from 1 to 25 bars (total pressure at the reaction) temperature) and in the presence of sulphidation catalysts known per se, in a given case followed by hydrolysis or partial hydrolysis of the reaction products. The bis-(silylethyl)-oligosulphides are used as reinforcing additives (adhesive agents) in crosslinkable rubber mixtures containing silicate fillers and in a given case carbon black as well as in a given case sulphur and other customary constituents.
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公开(公告)号:MY8500457A
公开(公告)日:1985-12-31
申请号:MY8500457
申请日:1985-12-30
Applicant: DEGUSSA
Inventor: SCHWARZ RUDOLF , KLEINSCHMIT PETER , LIEDTKE CHRISTA , WOLFF SIEGFRIED
IPC: C08L7/00 , C07F7/08 , C07F7/12 , C07F7/18 , C08G75/02 , C08G75/14 , C08K5/5425 , C08K5/548 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L101/00 , C08K5/54
Abstract: Novel bis-(silylethyl)-oligosulphides are obtained by reacting a vinyl silane of the formula (CH2=CH)m-SiRn1R4-(m+n) in which R represents chlorine, bromine, iodine, C1-C3-alkoxy, 2-methoxyethoxy, 2-ethoxyethoxy or hydroxy, R1 represents C1-C3-alkyl, phenyl or C5-C7-cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m+n is 1, 2 or 3 with sulphur as well as in a given case hydrogen sulphide in molar ratios of vinyl silane to sulphur of from 1:2.5 to 1:10 and vinyl silane to hydrogen sulphide of from 1:0 to 1:5 at temperatures between about 100 DEG and 200 DEG C. under pressure of from 1 to 25 bars (total pressure at the reaction) temperature) and in the presence of sulphidation catalysts known per se, in a given case followed by hydrolysis or partial hydrolysis of the reaction products. The bis-(silylethyl)-oligosulphides are used as reinforcing additives (adhesive agents) in crosslinkable rubber mixtures containing silicate fillers and in a given case carbon black as well as in a given case sulphur and other customary constituents.
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公开(公告)号:DE2856229A1
公开(公告)日:1980-07-03
申请号:DE2856229
申请日:1978-12-27
Applicant: DEGUSSA
IPC: C08L7/00 , C07F7/08 , C07F7/12 , C07F7/18 , C08G75/02 , C08G75/14 , C08K5/5425 , C08K5/548 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L101/00 , C08L9/00 , C08K5/37 , C08K5/54
Abstract: Novel bis-(silylethyl)-oligosulphides are obtained by reacting a vinyl silane of the formula (CH2=CH)m-SiRn1R4-(m+n) in which R represents chlorine, bromine, iodine, C1-C3-alkoxy, 2-methoxyethoxy, 2-ethoxyethoxy or hydroxy, R1 represents C1-C3-alkyl, phenyl or C5-C7-cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m+n is 1, 2 or 3 with sulphur as well as in a given case hydrogen sulphide in molar ratios of vinyl silane to sulphur of from 1:2.5 to 1:10 and vinyl silane to hydrogen sulphide of from 1:0 to 1:5 at temperatures between about 100 DEG and 200 DEG C. under pressure of from 1 to 25 bars (total pressure at the reaction) temperature) and in the presence of sulphidation catalysts known per se, in a given case followed by hydrolysis or partial hydrolysis of the reaction products. The bis-(silylethyl)-oligosulphides are used as reinforcing additives (adhesive agents) in crosslinkable rubber mixtures containing silicate fillers and in a given case carbon black as well as in a given case sulphur and other customary constituents.
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公开(公告)号:DE2250550A1
公开(公告)日:1974-04-18
申请号:DE2250550
申请日:1972-10-14
Applicant: DEGUSSA
Inventor: HEIN HILMAR DIPL CHEM DR , JANZON KARLHEINZ DIPL CHEM DR , WEIGERT WOLFGANG DIPL CHEM DR , LIEDTKE CHRISTA , MUELLER RUDOLF
IPC: C07D307/89 , B01J27/00 , C07B61/00 , C07C51/363 , C07C63/18
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