发明名称 |
AQUEOUS SUSPENSION OF A CELLULOSE ETHER, METHOD FOR THE PRODUCTION THEREOF, AND A DRY BLEND |
摘要 |
This invention relates to a suspension of a water-soluble, nonionic cellulose ether having a fairly low content of an electrolytic salt exhibiting a high stability and a low viscosity. The suspension having a pH-value of below 8.0, contains 10-30 % by weight of a water-soluble, nonionic cellulose ether, and 10-22 % by weight of an electrolytic salt, wherein the electrolytic salt contains a) 10-90 % by weight of a salt of polyphosphate having 3-12 phosphate groups, and b) 10-90 % by weight of a salt selected from the group consisting of ortophosphate, pyrophosphate, sulphate, carbonate and a mixture thereof. The suspension is advantageously produced by adding a dry blend containing the water-soluble cellulose ether in cross-linked form and the electrolytic salt to water.
|
申请公布号 |
WO0248254(A8) |
申请公布日期 |
2003.02.13 |
申请号 |
WO2001SE02653 |
申请日期 |
2001.11.30 |
申请人 |
AKZO NOBEL NV;BOSTROEM, PETER;KARLSSON, GUNVOR |
发明人 |
BOSTROEM, PETER;KARLSSON, GUNVOR |
分类号 |
C08L1/26;C08J3/05;C08K3/32;(IPC1-7):C08L1/26 |
主分类号 |
C08L1/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|