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. 03, 1996
Filed:
Oct. 12, 1993
Applicant:
Inventors:
Stuart E Lebo, Jr, Schofield, WI (US);
William J Detroit, Schofield, WI (US);
Assignee:
Lignotech USA, Inc., Rothschild, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
424408 ; 71DI / ; 252589 ; 264-41 ; 264-43 ; 424418 ;
Abstract
A method for microencapsulating agriculturally active substances such as pesticides to provide improved resistance to environmental degradation, especially ultra-violet light. The method employs as the UV protectant lignosulfonates, such as sulfite lignin or sulfonated lignin, or alternately sulfonated lignite, sulfonated tannins, napthalene sulfonates or other related compounds in combination with a protein such as a high bloom gelatin to form a capsule wall. The capsule wall formed by the interaction of these components is durable and has an ultra-violet protectant as an integral part of its structure.