EP 3687716 A1 20200805 - METHOD OF MAKING SILVER-CONTAINING DISPERSIONS WITH NITROGENOUS BASES
Title (en)
METHOD OF MAKING SILVER-CONTAINING DISPERSIONS WITH NITROGENOUS BASES
Title (de)
VERFAHREN ZUR HERSTELLUNG SILBERHALTIGER DISPERSIONEN MIT STICKSTOFFHALTIGEN BASEN
Title (fr)
PROCÉDÉ DE FABRICATION DE DISPERSIONS CONTENANT DE L'ARGENT AVEC DES BASES AZOTÉES
Publication
Application
Priority
- US 201715713786 A 20170925
- US 201715713795 A 20170925
- US 2018050353 W 20180911
Abstract (en)
[origin: WO2019060166A1] A method is used to prepare silver nanoparticle cellulosic polymer composites. A cellulosic polymer, reducible silver ions in an amount of a weight ratio to the cellulosic polymer of 5: 1 to 50: 1, and an organic solvent are mixed. Each organic solvent has a boiling point at atmospheric pressure of 100°C to 500°C. The Hansen parameter (δτPolymer) of the cellulosic polymer is less than or equal to the Hansen parameter (δτSolvent) of the organic solvent. The resulting premix solution is heated to at least 75°C, and a (d) nitrogenous base is added to provide a concentration of the nitrogenous base in an equimolar amount or in molar excess in relation to the amount of reducible silver ions, thereby forming a silver nanoparticle cellulosic polymer composite. After cooling, the silver nanoparticle cellulosic polymer composite is isolated and re-dispersed in an organic solvent to provide a non-aqueous silver-containing dispersion.
IPC 8 full level
B22F 1/00 (2006.01); B22F 1/054 (2022.01); B22F 1/102 (2022.01); B22F 1/103 (2022.01); B22F 1/107 (2022.01); B22F 9/24 (2006.01); H05K 1/03 (2006.01); H05K 1/09 (2006.01)
CPC (source: EP US)
B22F 1/054 (2022.01 - EP US); B22F 1/056 (2022.01 - EP US); B22F 1/102 (2022.01 - EP US); B22F 1/103 (2022.01 - EP US); B22F 1/107 (2022.01 - EP US); B22F 9/24 (2013.01 - EP US); H05K 1/0393 (2013.01 - EP); H05K 1/097 (2013.01 - EP); H05K 2203/1545 (2013.01 - EP)
Citation (search report)
See references of WO 2019060166A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019060166 A1 20190328; CN 111163879 A 20200515; CN 111163879 B 20220506; EP 3687716 A1 20200805
DOCDB simple family (application)
US 2018050353 W 20180911; CN 201880062415 A 20180911; EP 18779896 A 20180911