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:
Jul. 30, 1985
Filed:
Oct. 13, 1983
Applicant:
Inventors:
Dale R Shackle, Chillicothe, OH (US);
Michael J Cousin, Ashville, OH (US);
Gary D Pack, Waverly, OH (US);
Assignee:
The Mead Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B32B / ;
U.S. Cl.
CPC ...
42840222 ; 264-47 ; 346215 ; 424 33 ; 427 541 ;
Abstract
A method for producing microcapsules by interfacial photopolymerization is disclosed wherein a wall-forming monomer is present in both the continuous and the discontinuous phases of a dispersed system, at least one of the phases contains a photoinitiator; polymeric capsule walls which ensheath discrete droplets constituting the discontinuous phase are formed by photopolymerization; in accordance with one embodiment, the discontinuous phase is an oil and a polyfunctional isocyanate prepolymer is added to the discontinuous oil phase as an emulsion stabilizer to enhance wall formation.