|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||C08K-003/34 C08K-003/36 C09C-001/42|
|미국특허분류(USC)||524/447; 524/425; 524/791; 524/445; 106/487|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 10|
This invention is directed to a method of stabilizing high solid slurries, like kaolin slurries, the method comprises causticizing the sodium polycrylate or polyacrylic acid used in a dispersant blend to a pH of above 9. The method comprises a homogeneous dispersant blend of sodium carbonate, sodium polyacrylate, sodium silicate, and sodium hydroxide. This invention is also directed to a method of stabilizing high solid slurries, like kaolin slurries, by adding sodium polyacrylate at an acidic pH range or polyacrylic acid solution to the slurries: and ad...
1. A method of stabilizing a hydrous kaolin slurry containing greater than 65% hydrous kaolin by weight comprising adding a dispersant blend comprising sodium carbonate in an amount of from 5% to 50% by weight, sodium polyacrylate and/or polyacrylic acid in an amount of from 15% to 45% by weight, sodium silicate in an amount of from 15% to 55% by weight, and sodium hydroxide in an amount of from greater than 0% to 25% by weight, based on the weight of the dispersant blend to said hydrous kaolin slurry, said hydrous kaolin slurry being devoid of a phospha...