公开(公告)号：ZA8805105B

公开(公告)日：1989-03-29

申请号：ZA8805105

申请日：1988-07-14

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  REINHARD STOBER ,  FISCHER WOLFGANG ,  WOLFGANG FISCHER ,  PIETER MICHAEL HUSS REIMUND ,  MICHAEL HUSS REIMUND PIETER

IPC: C08B37/00 ,  D21H17/24 ,  C08B

CPC classification number: C08B37/0087

公开(公告)号：ZA8805070B

公开(公告)日：1989-03-29

申请号：ZA8805070

申请日：1988-07-13

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  REINHARD STOBER ,  FISCHER WOLFGANG ,  WOLFGANG FISCHER ,  HUSS MICHAEL ,  MICHAEL HUSS ,  PIETER RAIMUND ,  RAIMUND PIETER

IPC: C08B31/12 ,  D21H17/28 ,  C08B

CPC classification number: C08B31/125

公开(公告)号：FI883618A

公开(公告)日：1989-02-14

申请号：FI883618

申请日：1988-08-02

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL ,  PIETER REIMUND

IPC: C08B37/00 ,  C08B37/14 ,  D21H17/24 ,  C08B

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.

公开(公告)号：FI883661A0

公开(公告)日：1988-08-05

申请号：FI883661

申请日：1988-08-05

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL ,  PIETER REIMUND

IPC: C08B31/12 ,  D21H17/28 ,  C08B

Abstract: The process entails reaction with alkylene epoxides in alkaline medium in the presence of water.

公开(公告)号：AU6879387A

公开(公告)日：1987-08-20

申请号：AU6879387

申请日：1987-02-13

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL ,  UDLUFT KLAUS

IPC: C08B31/12 ,  D21H17/28

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.

公开(公告)号：FI69458B

公开(公告)日：1985-10-31

申请号：FI813893

申请日：1981-12-04

Applicant: DEGUSSA

Inventor： FISCHER WOLFGANG ,  LANGER MANFRED ,  ROESSLER GERT

IPC: C07D303/36 ,  C07D301/32 ,  C08B31/12

Abstract: The reaction mixture obtained in the production of 2,3-epoxypropyltrialkylammonium chlorides by treatment of chlorohydroxypropyltrialkylammonium chlorides with alkaline acting materials in aqueous medium containing impurities which create problems in the subsequent use of the 2,3-epoxypropyltrialkylammonium chloride. According to the invention the reaction mixture is freed from these impurities by separating it from undissolved impurities by employing at least about 0.2 mole of 2,3-epoxypropyltrialkylammonium chloride per mole of water.

公开(公告)号：DE3103713A1

公开(公告)日：1982-09-02

申请号：DE3103713

申请日：1981-02-04

Applicant: DEGUSSA

Inventor： FISCHER WOLFGANG ,  LANGER MANFRED DIPL CHEM DR ,  ROESSLER GERT DIPL CHEM DR

IPC: C07D303/36 ,  C07D301/32

Abstract: The reaction mixture obtained in the production of 2,3-epoxypropyltrialkylammonium chlorides by treatment of chlorohydroxypropyltrialkylammonium chlorides with alkaline acting materials in aqueous medium containing impurities which create problems in the subsequent use of the 2,3-epoxypropyltrialkylammonium chloride. According to the invention the reaction mixture is freed from these impurities by separating it from undissolved impurities by employing at least about 0.2 mole of 2,3-epoxypropyltrialkylammonium chloride per mole of water.

公开(公告)号：FI813893L

公开(公告)日：1982-08-05

申请号：FI813893

申请日：1981-12-04

Applicant: DEGUSSA

Inventor： FISCHER WOLFGANG ,  LANGER MANFRED ,  ROESSLER GERT

IPC: C07D303/36 ,  C07D

Abstract: The reaction mixture obtained in the production of 2,3-epoxypropyltrialkylammonium chlorides by treatment of chlorohydroxypropyltrialkylammonium chlorides with alkaline acting materials in aqueous medium containing impurities which create problems in the subsequent use of the 2,3-epoxypropyltrialkylammonium chloride. According to the invention the reaction mixture is freed from these impurities by separating it from undissolved impurities by employing at least about 0.2 mole of 2,3-epoxypropyltrialkylammonium chloride per mole of water.

公开(公告)号：FI803318L

公开(公告)日：1981-06-13

申请号：FI803318

申请日：1980-10-22

Applicant: DEGUSSA

Inventor： FISCHER WOLFGANG ,  LANGER MANFRED ,  POHL GERHARD

IPC: C08B31/12 ,  C08B

Abstract: The known process for the production of cationic starch ethers by the reaction of starch with cationic etherifying agents in the presence of water in an alkaline medium is improved by reacting the starch at a temperature of about 50 DEG to 120 DEG C. with an alkylidene epoxide which has a tertiary amino group or quaternary ammonium group in a medium which contains about 10 to 35 weight percent water and about 0.2 to 2.0 weight percent calcium hydroxide or calcium oxide. There are produced in short reaction times yields not previously attainable.