Method for preparing particles comprising metal oxide...

B - Operations – Transporting – 01 – J

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B01J 13/02 (2006.01) A01N 25/28 (2006.01) A61K 9/14 (2006.01) A61K 9/48 (2006.01) A61K 31/327 (2006.01) A61P 17/00 (2006.01)

Patent

CA 2677185

The invention relates to a process for coating a solid, water-insoluble particulate matter, with a metal oxide comprising: (a) contacting the solid, water-insoluble particulate matter with an ionic additive and an aqueous medium to obtain a dispersion of said particulate matter having positive charges on its surface; (b) subjecting the particulate matter to a coating procedure comprising precipitating a metal oxide salt onto the surface of the particulate matter to form a metal oxide layer thereon to thereby obtain particulate matter coated by a metal oxide coating layer; (c) repeating step (b) at least 4 more times; and (d) aging said coating layer. The invention further relates to particles comprising a particulate matter coated by a metal oxide layer, to a use of the particles for topical administration, and to a method for preventing, reducing, or eliminating pests at a locus, using the particles.

L'invention concerne une méthode utilisant un oxyde métallique pour enrober une matière particulaire solide insoluble dans l'eau. La méthode consiste à: a) placer la matière particulaire solide insoluble dans l'eau au contact d'un additif ionique et d'un milieu aqueux afin d'obtenir une dispersion de la matière particulaire présentant à sa surface des charges positives; b) soumettre la matière particulaire à un processus d'enrobage consistant à précipiter un sel d'oxyde métallique sur la surface de la matière particulaire afin d'y former une couche d'oxyde métallique pour obtenir une matière particulaire enrobée d'une couche d'oxyde métallique; c) répéter l'étape b) au moins quatre autres fois; et d) vieillir cette couche d'enrobage. L'invention concerne en outre: des particules comprenant une matière particulaire enrobée d'une couche d'oxyde métallique; l'utilisation de ces particules à des fins d'administration topique; et une méthode utilisant ces particules pour prévenir, réduire ou éradiquer des animaux nuisibles à un emplacement.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method for preparing particles comprising metal oxide... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preparing particles comprising metal oxide..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing particles comprising metal oxide... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2080571

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.