Title:
【発明の名称】微小孔質顆粒物質および洗剤組成物の製造方法
Document Type and Number:
Japanese Patent JP2002527578
Kind Code:
A
Abstract:
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° 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.
Inventors:
Srinivas, acanta
Paul, Ama, France
Paul, Ama, France
Application Number:
JP2000575976A
Publication Date:
August 27, 2002
Filing Date:
October 06, 1999
Export Citation:
Assignee:
THE PROCTER AND GAMBLE COMPANY
International Classes:
B01J2/02; B01J2/06; C11D3/04; C11D3/37; C11D3/382; C11D11/00; F26B5/06; (IPC1-7): C11D11/00; B01J2/06; C11D3/04; C11D3/37; C11D3/382; F26B5/06
Attorney, Agent or Firm:
Kenji Yoshitake (3 others)