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

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：AU593325B2

公开(公告)日：1990-02-08

申请号：AU6879387

申请日：1987-02-13

Applicant: DEGUSSA

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

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：AT96808T

公开(公告)日：1993-11-15

申请号：AT86116805

申请日：1986-12-03

Applicant: DEGUSSA

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

IPC: C08B31/12 ,  D21H17/28

公开(公告)号：DE2239278A1

公开(公告)日：1974-02-21

申请号：DE2239278

申请日：1972-08-10

Applicant: DEGUSSA

Inventor： OFFERMANNS HERIBERT DR ,  WEIGERT WOLFGANG DR ,  WAGNER HANS DR ,  UDLUFT KLAUS DR

IPC: C07C69/18 ,  C07C20060101 ,  C07C67/00 ,  C07C69/12

公开(公告)号：ES2044833T3

公开(公告)日：1994-01-16

申请号：ES86116805

申请日：1986-12-03

Applicant: DEGUSSA

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

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：DE3689261D1

公开(公告)日：1993-12-09

申请号：DE3689261

申请日：1986-12-03

Applicant: DEGUSSA

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

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.