Preparation of microcapsules

Details Preparation of microcapsules Preparation of microcapsules

1973-01-02

1976-03-09

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

71 64F, 264 4, 424 32, 424 33, 424 35, 424 94, 426302, 427212, B01J 1302

Patent

active

039430634

ABSTRACT:
Microcapsules are made by (a.) dispersing or dissolving a core substance in a film-forming polymer solution, (b.) emulsifying in fine droplets the resulting dispersion or solution in a vehicle which is poorly miscible with the solvent of the polymer solution and which doesn't dissolve said polymer to prepare an emulsion, and (c.) adding to the emulsion a non-solvent for the polymer wherein the non-solvent is miscible with the solvent, poorly miscible with the vehicle, and does not dissolve the polymer, whereby the solvent is removed by being absorbed by non-solvent emulsion droplets to precipitate the polymer film around the core substance.

REFERENCES:
patent: 3173878 (1965-03-01), Reyes
patent: 3523907 (1970-08-01), Vrancken et al.
patent: 3576760 (1971-04-01), Gould et al.
patent: 3669899 (1972-06-01), Vassiliades et al.
patent: 3714065 (1973-01-01), Kitajima et al.
patent: 3737337 (1973-06-01), Schnoring et al.

Affiliated with

Also associated with

Rating

Preparation of microcapsules does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of microcapsules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of microcapsules will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-832125