The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 1977
Filed:
Mar. 27, 1972
Applicant:
Inventors:
Russel E Wellman, Pittsford, NY (US);
Robert W Brown, Rochester, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
252316 ; 1063 / ; 252 / ; 252 / ; 252314 ; 264-4 ; 427221 ; 427222 ;
Abstract
A method is provided for forming encapsulated particles comprising forming a dispersion of core material in a solution of wall material in a solvent; drowning said dispersion in at least one liquid which is miscible with the solvent and in which at least the wall material is substantially insoluble, to effect phase-separation of said wall material, whereby said wall material deposits about said core material forming a dilute dispersion of particles comprising said core material encapsulated with said wall material in said liquid, and recovering said encapsulated particles from said liquid.