A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
A01N 25/10 (2006.01) A01N 25/08 (2006.01) A01N 25/34 (2006.01) A01N 51/00 (2006.01) A01N 55/00 (2006.01)
Patent
CA 2452509
A method of producing lignin-based matrix microparticles for the controlled release of an agricultural active includes forming an emulsion of an organic solution in an aqueous solution, wherein the organic solution contains a lignin derivative and an agricultural active in a volatile organic solvent and the aqueous solution contains an emulsifier; and removing the organic solvent, thereby producing microparticles having a matrix comprising the lignin derivative within which the agricultural active is distributed. Small, spherical lignin-based matrix microparticles that release an agricultural active at a controlled rate are described, as are plants and plant propagation materials that are treated with such microparticles.
L'invention concerne un procédé de production de microparticules à matrice à base de lignine permettant une libération régulée d'un agent actif agricole. Ledit procédé consiste à former une émulsion d'une solution organique dans une solution aqueuse. La solution organique contient un dérivé de lignine et un agent actif agricole dans un solvant organique volatil et la solution aqueuse contient un émulsifiant. Le procédé consiste également à éliminer le solvant organique, et à produire ainsi des microparticules présentant une matrice et comprenant le dérivé de lignine à l'intérieur duquel l'agent actif agricole est distribué. L'invention concerne également des microparticules sphériques à matrice à base de lignine qui libèrent un agent actif agricole à un taux régulé, ainsi que des plantes et des matières de propagation de plantes traités avec lesdites microparticules.
Asrar Jawed
Ding Yiwei
Mcfadden Fincham
Monsanto Technology Llc
LandOfFree
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