EP 2274123 A2 20110119 - METALLIC NANOPARTICLES STABILISED WITH DERIVATISIED POLYETHYLENIMINES OR POLYVINYLAMINES
Title (en)
METALLIC NANOPARTICLES STABILISED WITH DERIVATISIED POLYETHYLENIMINES OR POLYVINYLAMINES
Title (de)
MIT DERIVATISIERTEN POLYETHYLENIMINEN ODER POLYVINYLAMINEN STABILISIERTE METALL-NANOPARTIKEL
Title (fr)
NANOPARTICULES MÉTALLIQUES STABILISÉES AVEC DES POLYÉTHYLÈNE IMINES OU DES POLYVINYLE AMINES DÉRIVÉES
Publication
Application
Priority
- EP 2009053114 W 20090317
- EP 08152996 A 20080319
- EP 09722099 A 20090317
Abstract (en)
[origin: WO2009115506A2] The invention relates to metal-nanoparticles and to methods for the production thereof in which a metallic salt solution is reduced by means of a reducing agent in the presence of the derivatised polyethylenimines or polyvinylamines. Metal salt solutions of two or more different metals can be reduced at the same time or successively. The metallic nanoparticles are obtained from two or more different metals. Metals are preferably silver, palladium and platinum. Suitable reducing agents are, for example, formic acid, formaldehyde, diethanolamine, 5-pentenic acids and sodium borohydride. Silver can be used in the form of silver oxide and/or silver nitrate, palladium can be used in the form of alkali tetrachloropalladate or palladium(ll)nitrate and platinum can be used in the form of alkali tetrachloroplatinate or tetraamine platinum(ll)nitrate.
IPC 8 full level
B22F 1/054 (2022.01); B22F 1/10 (2022.01); B22F 9/24 (2006.01); C01G 3/00 (2006.01); C01G 5/00 (2006.01); C01G 7/00 (2006.01); C01G 9/00 (2006.01); C01G 29/00 (2006.01); C01G 55/00 (2006.01); C09C 1/62 (2006.01)
CPC (source: EP US)
B22F 1/054 (2022.01 - EP US); B22F 1/10 (2022.01 - EP US); B22F 9/24 (2013.01 - EP US); B82Y 30/00 (2013.01 - EP US); C01G 3/00 (2013.01 - EP US); C01G 5/00 (2013.01 - EP US); C01G 7/00 (2013.01 - EP US); C01G 9/00 (2013.01 - EP US); C01G 29/00 (2013.01 - EP US); C01G 55/00 (2013.01 - EP US); C09C 1/62 (2013.01 - EP US); C01P 2002/01 (2013.01 - EP US); C01P 2002/84 (2013.01 - EP US); C01P 2004/04 (2013.01 - EP US); C01P 2004/64 (2013.01 - EP US); C01P 2006/40 (2013.01 - EP US)
Citation (search report)
See references of WO 2009115506A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009115506 A2 20090924; WO 2009115506 A3 20100506; CN 102036773 A 20110427; EP 2274123 A2 20110119; JP 2011517728 A 20110616; US 2011020170 A1 20110127
DOCDB simple family (application)
EP 2009053114 W 20090317; CN 200980118001 A 20090317; EP 09722099 A 20090317; JP 2011500188 A 20090317; US 93339709 A 20090317