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公开(公告)号：DE4341576A1
公开(公告)日：1995-06-08
申请号：DE4341576
申请日：1993-12-07
Applicant: HOECHST AG
Inventor： WEHLE DETLEF DR , KREMER GERNOT DR , WIMMER IGNAZ
Abstract: According to the invention, the alkoxylation of compounds containing active H atoms is carried out in the presence of specific alkaline earth metal salts of alkyl- or alkenylsuccinic acid monoesters as catalyst. Alkoxylates having a narrow homologue distribution and good appearance are obtained.
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公开(公告)号：BR9202056A
公开(公告)日：1993-01-19
申请号：BR9202056
申请日：1992-05-29
Applicant: HOECHST AG
Inventor： WIMMER IGNAZ , KUPFER RAINER DR
IPC: B01J27/08 , C07B61/00 , C07C41/02 , C07C43/13 , C08G65/12 , C08G65/26 , C08G65/28 , C07C43/11 , C07C43/12 , C07C41/03 , C08G65/10 , B01J31/18
Abstract: In the process described for the preparation of alkoxylates having a narrow distribution of homologs by reaction of compounds containing at least one hydroxyl group with alkylene oxide, complex compounds of antimony pentahalide with a special Lewis base are used as the catalysts. Alkoxylates having a narrow distribution of homologs and good color quality are obtained at a high conversion.
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公开(公告)号：DE4117935A1
公开(公告)日：1992-12-03
申请号：DE4117935
申请日：1991-05-31
Applicant: HOECHST AG
Inventor： WIMMER IGNAZ , KUPFER RAINER DR
Abstract: In the process described for the preparation of alkoxylates having a narrow distribution of homologs by reaction of compounds containing at least one hydroxyl group with alkylene oxide, complex compounds of antimony pentahalide with a special Lewis base are used as the catalysts. Alkoxylates having a narrow distribution of homologs and good color quality are obtained at a high conversion.
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公开(公告)号：CS416091A3
公开(公告)日：1992-06-17
申请号：CS416091
申请日：1991-12-30
Applicant: HOECHST AG
Inventor： GEYMAYER PETER DR , LEIDL ERICH , WIMMER IGNAZ , ZELLHUBER LUDWIG
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公开(公告)号：BR9101578A
公开(公告)日：1991-12-10
申请号：BR9101578
申请日：1991-04-19
Applicant: HOECHST AG
Inventor： WIMMER IGNAZ
Abstract: In the process described, alkoxylation of compounds containing active hydrogen atoms using antimony pentahalides as catalyst is carried out such that first a catalyst premix is prepared by dissolving antimony pentahalide in a portion of the amount of the compound to be alkoxylated while maintaining a maximum temperature of 60 DEG C and a maximum antimony pentahalide concentration of 30 mol%, the catalyst premix prepared or a portion thereof is combined as the catalyst component with the remaining amount of the compound to be alkoxylated, and the starting mixture thus obtained is reacted with the alkylene oxide.
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Patent Agency Ranking
公开(公告)号：DE4012725A1
公开(公告)日：1991-10-24
申请号：DE4012725
申请日：1990-04-21
Applicant: HOECHST AG
Inventor： WIMMER IGNAZ
Abstract: In the process described, alkoxylation of compounds containing active hydrogen atoms using antimony pentahalides as catalyst is carried out such that first a catalyst premix is prepared by dissolving antimony pentahalide in a portion of the amount of the compound to be alkoxylated while maintaining a maximum temperature of 60 DEG C and a maximum antimony pentahalide concentration of 30 mol%, the catalyst premix prepared or a portion thereof is combined as the catalyst component with the remaining amount of the compound to be alkoxylated, and the starting mixture thus obtained is reacted with the alkylene oxide.
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公开(公告)号：BR9001939A
公开(公告)日：1991-07-30
申请号：BR9001939
申请日：1990-04-26
Applicant: HOECHST AG
Inventor： WIMMER IGNAZ , BILLENSTEIN SIEGFRIED
Abstract: In the novel process for the purification of an alkylene oxide adduct which has been prepared using halogen-containing metal catalysts and contains halogen-containing compounds and metals as impurities, the alkylene oxide adduct to be purified is treated with an excess of the alkali metal compound, and the alkaline mixture obtained is brought to a pH of not more than 7 using an acid, with the proviso that the amount of water present in the resulting product mixture is at least 0.1% by weight, relative to the weight of the product. This product mixture is freed from water and other solvents, as a result of which the salts insoluble in the alkylene oxide adduct precipitate in the form of coarse crystals and can be easily separated off to give the desired pure alkylene oxide adduct.
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公开(公告)号：MX156541A
公开(公告)日：1988-09-08
申请号：MX19498082
申请日：1982-10-28
Applicant: HOECHST AG
Inventor： BILLENSTEIN SIEGFRIED , FREUNDL HILDEGARD , WIMMER IGNAZ , GOHLKE FRITZ JOACHIM , MACENKA JOHANNES
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公开(公告)号：DE3701303A1
公开(公告)日：1988-07-28
申请号：DE3701303
申请日：1987-01-17
Applicant: HOECHST AG
Inventor： KLEBER ROLF DR , BILLENSTEIN SIEGFRIED DR , JAECKEL LOTHAR , WIMMER IGNAZ
Abstract: Compounds of the formula where R1 denotes a group of the formula +TR R2 denotes C1-C4-alkyl, R3 denotes hydrogen or methyl, n denotes a number from 5 to 100, m denotes an integer from 0 to 4 and x denotes the number of free valences of the particular R1 radical, a process for the preparation thereof, and the use thereof as fiber spin finishes.
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公开(公告)号：BR8206267A
公开(公告)日：1983-09-20
申请号：BR8206267
申请日：1982-10-27
Applicant: HOECHST AG
Inventor： BILLENSTEIN SIEGFRIED , FREUNDL HILDEGARD , WIMMER IGNAZ , GOHLKE FRITZ JOACHIM , MACENKA JOHANNES
IPC: C11D1/72 , B01D17/04 , B01D17/05 , C08G4/00 , C08G8/00 , C08G8/12 , C08G8/28 , C08G8/36 , C08G65/26 , C08G81/00 , C08L7/00 , C08L21/00 , C08L61/00 , C08L61/04 , C08L61/14 , C09K23/00 , C09K23/42 , C09K23/52 , C10G33/04 , C10L1/192 , C10L1/195 , C10L1/198 , C08G83/00 , C08G65/32
Abstract: The new compounds consist essentially of ethylene oxide/propylene oxide block polymer units and oxyalkyleneated alkylphenol/aldehyde resin units, which are linked by methylene groups. They are prepared by reacting a block polymer of ethylene oxide and propylene oxide and an oxyalkyleneated alkylphenol/aldehyde resin with formaldehyde. The new compounds constitute especially advantageous breaking agents for petroleum.
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