公开(公告)号：US3557084A

公开(公告)日：1971-01-19

申请号：US3557084D

申请日：1968-06-20

Applicant: KEEVER CO

Inventor： HYLDON ROY G ,  HIGH ROBERT L ,  ANKLAM FREDRICK H

IPC: C08B31/18 ,  D21H17/28

CPC classification number: D21H17/28 ,  C08B31/18

Abstract: A SULFITE-CARBONYL STARCH COMPLEX IS PREPARED BY EFFECTING THE INTERACTION OF A CARBONYL-ENRICHED STARCH AND SULFITE IONS. THE CARBONYL STARCH MAY BE A DIALDEHYDE STARCH, MAY BE A CARBONYL-ENRICHED PRODUCT OF THE HYPOCHLORITE OXIDATION OF STARCH, AND THE LIKE. A PREFERRED EMBODIMENT OF THE INVENTION INVOLVES INTERACTING A CARBONYL STARCH AND SULFITE IONS IN AN AQUEOUS SLURRY OF A CARBONYL STARCH CONTAINING ABOUT 1% DISSOLVED SODIUM SULFITE (BASED ON STARCH WEIGHT) AND AT A PH OF ABOUT 6-10.

公开(公告)号：US3450692A

公开(公告)日：1969-06-17

申请号：US3450692D

申请日：1965-02-05

Applicant: KEEVER CO

Inventor： HYLDON ROY G ,  FINK DORIS E ,  ABOUL-SAAD HALIM G

IPC: C08B31/18 ,  C08B19/04 ,  C13L1/08

CPC classification number: C08B31/18