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:
Jun. 19, 2001
Filed:
Apr. 07, 1997
Applicant:
Inventors:
Ashok Sengupta, London, CA;
Kent E. Nielsen, Dorchester, CA;
Galina Barinshteyn, London, CA;
Kai Li, Arcadia, CA (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N 2/514 ; A61K 9/16 ; A61K 4/734 ; B01J 1/316 ;
U.S. Cl.
CPC ...
A01N 2/514 ; A61K 9/16 ; A61K 4/734 ; B01J 1/316 ;
Abstract
A process for encapsulating a partially water-miscible organic material within a polyurea or polyurethane shell is provided utilizing a water-soluble tertiary amine in the reaction dispersion. Microcapsules and methods of using microcapsules are also provided.