Process for the preparation of dispersible colloidal systems of

Details Process for the preparation of dispersible colloidal systems of Process for the preparation of dispersible colloidal systems of

1990-10-04

1992-06-02

Lovering, Richard D.

Coating processes

Particles, flakes, or granules coated or encapsulated

Solid encapsulation process utilizing an emulsion or...

264 41, 264 46, 424469, 424485, 424486, 424487, 4284022, 42840221, 514965, A61K 951, B01J 1306, B01J

Patent

active

051185288

ABSTRACT:
The process according to the invention comprises: (1) the preparation of a liquid phase consisting essentially of a solution of the substance in a solvent or in a mixture of solvents to which may be added one or more surfactants, (2) the preparation of a second liquid phase consisting essentially of a non-solvent or a mixture of non-solvents for the substance and to which may be added one or more surfactants, the non-solvent or the mixture of non-solvents for the substance being miscible in all proportions with the solvent or the mixture of solvents for the substance, (3) the addition of one of the liquid phases prepared in (1) or (2) to the other with moderate stirring so as to produce a colloidal suspension of nanoparticles of the substance, and (4) is desired, the removal of all or part of the solvent or the mixture of solvents for the substance and of the non-solvent or the mixture of non-solvents for the substance so as to produce a colloidal suspension of nanoparticles of the desired concentration or to produce a powder of nanoparticles.

REFERENCES:
patent: 3691090 (1972-09-01), Kitajima et al.
patent: 4492720 (1985-01-01), Mosier
patent: 4585651 (1986-04-01), Beck et al.

Affiliated with

Also associated with

Rating

Process for the preparation of dispersible colloidal systems of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of dispersible colloidal systems of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of dispersible colloidal systems of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2227367