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:
Aug. 15, 1978
Filed:
Apr. 28, 1977
Applicant:
Inventor:
Norman W Thomas, Warren, NJ (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; A01N / ;
U.S. Cl.
CPC ...
71115 ; 71 6 / ; 71DI / ;
Abstract
A controlled-release composition comprising discrete particles of water-leachable herbicide occupying the voids, or channels, of a particulate, substantially water-impermeable, porous, cellulose ester carrier is provided with enhanced resistance to water leaching of the herbicide component thereof following sintering of the herbicide contained in the composition. The herbicide-filled cellulose ester composition can be prepared by the method which comprises: