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:
Sep. 24, 1991
Filed:
May. 21, 1990
Applicant:
Inventors:
Colette Meinard, Marseilles, FR;
Claude Taranta, Aix-en-Provence, FR;
Assignee:
Roussel Uclaf, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
42840221 ; 264-47 ; 42840222 ; 424408 ; 424462 ; 514963 ;
Abstract
An active principle microencapsulated in an envelope formed by interfacial polymerization of two non-miscible phases A and B, organic phase A comprising at least one water insoluble active principle which do not react with each other, a polyfunctional monomer a and a solvent for the active principle and aqueous phase B comprising a polyfunctional monomber b and a catalyst which allows a progressive diffusion of the active principle and protects the same from the environment.