Polymer compositions containing colloids of silver salts

A - Human Necessities – 61 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61L 29/16 (2006.01) A61L 27/30 (2006.01) A61L 27/34 (2006.01) A61L 27/54 (2006.01) A61L 29/08 (2006.01) A61L 29/10 (2006.01) A61L 31/08 (2006.01) A61L 31/10 (2006.01) A61L 31/16 (2006.01)

Patent

CA 2394214

The present invention relates to antimicrobial compositions, methods for the production of these compositions, and use of these compositions with medical devices, such as catheters, and implants. The compositions of the present invention advantageously provide varying release kinetics for the active ions in the compositions due to the different water solubilities of the ions, allowing antimicrobial release profiles to be tailored for a given application and providing for sustained antimicrobial activity over time. More particularly, the invention relates to polymer compositions containing colloids comprised of salts of one or more oligo-dynamic metal, such as silver. The process of the invention includes mixing a solution of one or more oligodynamic metal salts with a polymer solution or dispersion and precipitating a colloid of the salts by addition of other salts to the solution which react with some or all of the first metal salts. The compositions can be incorporated into articles or can be employed as a coating on articles such as medical devices.

L'invention concerne des compositions antimicrobiennes, des procédés d'obtention de ces compositions et leurs applications dans les appareils médicaux, tels que les cathéters, et des implants. Les compositions de l'invention apportent des cinétiques de libération différentes pour les ions actifs présents dans les compositions en raison des différentes hydrosolubilités des ions, entraînant des profils de libération antimicrobienne à définir pour une application donnée tout en assurant une activité antimicrobienne prolongée. L'invention concerne plus particulièrement des compositions polymères contenant des colloïdes se composant de sels d'un ou plusieurs métal(aux) oligodynamique(s), notamment l'argent. L'invention concerne aussi un procédé consistant à mélanger la solution d'un ou plusieurs sels métalliques oligodynamqiues avec une solution ou dispersion polymère et à précipiter un colloïde desdits sels par addition d'autres sels à la solution qui réagit à plusieurs ou tous les premiers sels métalliques. Les compostions peuvent être constituées d'articles ou utilisées comme revêtement recouvrant les articles, notamment les dispositifs médicaux.

LandOfFree

Say what you really think

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

Rating

Polymer compositions containing colloids of silver salts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymer compositions containing colloids of silver salts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer compositions containing colloids of silver salts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1970556

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