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:
Jan. 18, 1977
Filed:
Nov. 13, 1974
Applicant:
Inventors:
Martin Kuhn, Birsfelden, CH;
Melvin Harris, Dornach, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
252316 ; 8 79 ; 424 19 ; 424 33 ; 424330 ; 424340 ; 427151 ; 427152 ; 427340 ;
Abstract
A process for the encapsulating of substances immiscible with water by dispersing the substance to be encapsulated in a distribution medium in the presence of a hydrate or bisulphite adduct of a polyacrolein or acrolein copolymer and reacting said hydrate or bisulphite adduct with a water-soluble, polyfunctional, monomeric or polymeric hydrophilic compound and, optionally, additionally with a curing agent or an aminoplast precondensate to form an insoluble capsule.