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1. WO2007147094 - NOVEL POLYMER-NANO/MICROPARTICLE COMPOSITES

Publication Number WO/2007/147094
Publication Date 21.12.2007
International Application No. PCT/US2007/071295
International Filing Date 15.06.2007
IPC
A61K 31/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31Medicinal preparations containing organic active ingredients
CPC
A61K 33/38
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
33Medicinal preparations containing inorganic active ingredients
24Heavy metals; Compounds thereof
38Silver; Compounds thereof
B82Y 30/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
30Nanotechnology for materials or surface science, e.g. nanocomposites
Y10T 442/2525
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
442Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
20Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
2525Coating or impregnation functions biologically [e.g., insect repellent, antiseptic, insecticide, bactericide, etc.]
Applicants
  • THE PENN STATE RESEARCH FOUNDATION [US]/[US] (AllExceptUS)
  • SAMBHY, Varun [IN]/[US] (UsOnly)
  • SEN, Ayusman [US]/[US] (UsOnly)
Inventors
  • SAMBHY, Varun
  • SEN, Ayusman
Agents
  • CITKOWSKI, Ronald, W.
Priority Data
11/763,14114.06.2007US
60/814,09015.06.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NOVEL POLYMER-NANO/MICROPARTICLE COMPOSITES
(FR) NOUVEAUX COMPOSITES DE POLYMÈRE-NANO/MICROPARTICULES
Abstract
(EN)
Polymeric materials, including polymers and polymer-composite materials, are useful for a variety of applications including biocidal coatings. Representative examples include a composite of silver salt particles and an ionic polymer. A novel process was developed whereby the counter-ion of an ionic polymer is precipitated as a metal salt, so as to form metal salt nanoparticles or microparticles within a polymer matrix. In other examples, polymers having cross-linkable silicon-containing groups form stable biocidal coatings on various substrates, including textiles. Biocidal activity may arise from silver salt particles (or other biocidal particles), ions (such as biocidal anions), membrane disruption by charged species, or some combination thereof. Further, bromide ions, such as provided by silver bromide particles, may impart fire retardant properties to textile substrates.
(FR)
Les matières polymériques, dont les polymères et les matières composites à base de polymère, sont utiles pour un grand nombre d'applications dont des revêtements biocides. Les exemples représentatifs comprennent un composite de particules de sel d'argent et d'un polymère ionique. Il a été développé un nouveau procédé consistant à faire précipiter le contre-ion d'un polymère ionique sous forme d'un sel d'argent, de façon à former des nanoparticules ou microparticules de sel de métal à l'intérieur d'une matrice en polymère. Dans d'autres exemples, des polymères ayant des groupes réticulables contenant du silicium forment des revêtements biocides stables sur différents substrats, dont des textiles. L'activité biocide peut provenir de particules de sel d'argent (ou d'autres particules biocides), d'ions (tels que des anions biocides), de la rupture de la membrane par des espèces chargées ou d'une certaine combinaison de ceux-ci. En outre, les ions bromure, tels que des ions bromure fournis par des particules de bromure d'argent, peuvent conférer des propriétés ignifuges aux substrats textiles.
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