发明名称 |
METHOD FOR MAKING A NANOPOROUS GRANULAR MATERIAL AND A DETERGENT COMPOSITION |
摘要 |
A process for producing a starting material in a granular form and in a nanoporous anhydrous state, a process for improving the water-solubility and controlled release characteristics of a detergent material, and a detergent composition are disclosed. In one aspect, a process for producing a starting material in a granular form and in a nanoporous anhydrous state includes obtaining a starting material in a form of a dispersion or solution in a sublimable solvent or mixtures of sublimable solvents, forming graded droplets by atomization, freezing the graded droplets in a freezing medium at a controlled freezing rate of a least 100 DEG C per second to form frozen droplets and drying the frozen droplets by vacuum sublimation to obtain freeze-dried granules of the starting material in a nanoporous anhydrous state. The starting material in dispersion or solution form has a viscosity suitable for atomization and formation of graded droplets.
|
申请公布号 |
WO0022083(A1) |
申请公布日期 |
2000.04.20 |
申请号 |
WO1999US23297 |
申请日期 |
1999.10.06 |
申请人 |
THE PROCTER & GAMBLE COMPANY;ACHANTA, SRINIVAS;FRANCE, PAUL, AMAT |
发明人 |
ACHANTA, SRINIVAS;FRANCE, PAUL, AMAT |
分类号 |
F26B5/06;B01J2/02;B01J2/06;C11D3/04;C11D3/37;C11D3/382;C11D11/00;(IPC1-7):C11D11/00 |
主分类号 |
F26B5/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|