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公开(公告)号：DE3886843D1
公开(公告)日：1994-02-17
申请号：DE3886843
申请日：1988-06-30
Applicant: DEGUSSA
Inventor： STOBER REINHARD DR , FISCHER WOLFGANG , HUSS MICHAEL , PIETER REIMUND DR
Abstract: The process entails reaction with alkylene epoxides in alkaline medium in the presence of water.
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公开(公告)号：FI90984B
公开(公告)日：1994-01-14
申请号：FI883618
申请日：1988-08-02
Applicant: DEGUSSA
Inventor： STOBER REINHARD , FISCHER WOLFGANG , HUSS MICHAEL , PIETER REIMUND
Abstract: The process entails reaction with alkylene epoxides in alkaline medium in the presence of water at 5 to 60 DEG C and in the presence of a finely divided hydrophilic silica.
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公开(公告)号：IN169654B
公开(公告)日：1991-11-30
申请号：IN570CA1988
申请日：1988-07-07
Applicant: DEGUSSA
Inventor： STOBER REINHARD , FISCHER WOLFGANG , HUSS MICHAEL , PIETER REIMUND
Abstract: The process entails reaction with alkylene epoxides in alkaline medium in the presence of water at 5 to 60 DEG C and in the presence of a finely divided hydrophilic silica.
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公开(公告)号：AU609504B2
公开(公告)日：1991-05-02
申请号：AU2032688
申请日：1988-08-02
Applicant: DEGUSSA
Inventor： STOBER REINHARD DR , FISCHER WOLFGANG , HUSS MICHAEL , PIETER RAIMUND DR
Abstract: The process entails reaction with alkylene epoxides in alkaline medium in the presence of water.
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公开(公告)号：FI82840C
公开(公告)日：1991-04-25
申请号：FI870249
申请日：1987-01-21
Applicant: DEGUSSA
Inventor： STOBER REINHARD , FISCHER WOLFGANG , HUSS MICHAEL
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Patent Agency Ranking
公开(公告)号：FI884450A
公开(公告)日：1989-04-04
申请号：FI884450
申请日：1988-09-28
Applicant: DEGUSSA
Inventor： STOBER REINHARD , BISCHOFF DIETMAR , HUSS MICHAEL
IPC: C08B11/145 , C08B
Abstract: The ethers are prepared by reacting alkylene epoxides with cellulose or derivatives thereof in alkaline medium in the presence of water. Cationisation agents employed are alkylene epoxides or mixtures thereof with the general formulae in which n is 1, 2 or 3, R , R and R are identical or different alkyl radicals with 1 to 18 carbon atoms or R is the benzyl radical or -C2H4OH, and X is chloride, bromide, sulphate or acetate.
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公开(公告)号：DE3604796A1
公开(公告)日：1987-08-20
申请号：DE3604796
申请日：1986-02-15
Applicant: DEGUSSA
Inventor： STOBER REINHARD DR , FISCHER WOLFGANG , HUSS MICHAEL , UDLUFT KLAUS DR
Abstract: A dry process for preparation of cationic starch ethers by reaction of starch with alkylidene epoxides in the presence of water in an alkaline medium at a temperature of 5 DEG to 40 DEG C. in the presence of a finely divided silica.
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公开(公告)号：DE3604795A1
公开(公告)日：1987-08-20
申请号：DE3604795
申请日：1986-02-15
Applicant: DEGUSSA
Inventor： STOBER REINHARD DR , FISCHER WOLFGANG , HUSS MICHAEL
Abstract: A process for the dry cationization of galactomannans by reaction with alkylidene epoxides in an alkaline medium in the presence of water at 5 DEG to 60 DEG C. and in the presence of finely divided, hydrophilic silicic acid.
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公开(公告)号：ZA200110146B
公开(公告)日：2003-03-10
申请号：ZA200110146
申请日：2001-12-10
Applicant: DEGUSSA
Inventor： FUCHS RAINER , HUSS MICHAEL
IPC: B01J27/16 , B01J31/04 , C07C409/24 , C07C409/26 , C07C
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公开(公告)号：CA2377243A1
公开(公告)日：2001-06-21
申请号：CA2377243
申请日：2000-11-18
Applicant: DEGUSSA
Inventor： HUSS MICHAEL , FUCHS RAINER
IPC: B01J27/16 , B01J31/04 , C07C409/24 , C07C409/26 , C07C409/00
Abstract: The invention relates to a method for producing a peroxyacetic acid or peroxypropionic acid solution by reacting acetic acid or propionic acid with hydrogen peroxide in the presence of a polyphosphoric acid catalyst. The catalyst used in the inventive method is a water-free solution that is obtained by dissolving 0.1 to 99 % by weight, especially 1 to 35 % by weight (based on the solution) of a polyphosphoric acid in the carboxylic acid that is to be converted to the peroxycarboxylic acid. The catalyst solution is preferably produced using molten polyphosphoric acid on the site of producti on of the same.
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