A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 6/10 (2006.01) A01N 59/00 (2006.01) C08K 5/00 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2338154
The invention concerns an elastomer system having biocide properties and useful, in particular, for impression, for example, dental impressions. The invention aims at providing an efficient system for destroying microbes, without adversely affecting the crosslinking properties and the mechanical qualities of RTV 2 elastomers. Said system comprises an RTV 2 silicone, preferably SiH/SiVi polyaddition product and a biocide selected among active chlorine precursors, preferably among N-chloramines. The system may include functional additives (silicone fillers, alumina, paraffin, vaseline oil). As for the biocide, it can be provided with an adjuvant using antiseptic quaternary ammonium, even with EDTA-type complexing agents. The invention is useful for impressions in dentistry.
L'invention concerne un système élastomère ayant des propriétés biosides et utilisable, notamment, pour la prise d'empreintes, par exemple, dentaires. Le but visé est de fournir un système performant quant à la destruction des microbes, sans que cela ne nuise aux propriétés de réticulation et aux qualités mécaniques des élastomères EVF 2. Ainsi, le système revendiqué comprend un silicone EVF 2, de préférence polyaddition SiH/SiVi et un biocide choisi parmi les précurseurs de chlore actif, de préférence parmi les N-chloramines. Le système peut comprendre des additifs fonctionnels (charges siliciques, alumines, paraffine, huile de vaseline). Le biocide peut quant à lui être adjuvanté à l'aide d'ammoniums quaternaires antiseptiques, voire à l'aide de complexants type EDTA. Application: prise d'empreintes dentaires.
Del Torto Marco
Pusineri Christian
Bluestar Silicones France
Rhodia Chimie
Robic
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