EP 1974840 A4 20111109 - NICKEL POWDER, METHOD FOR PRODUCING SAME, AND POLYMER PTC DEVICE USING SUCH NICKEL POWDER
Title (en)
NICKEL POWDER, METHOD FOR PRODUCING SAME, AND POLYMER PTC DEVICE USING SUCH NICKEL POWDER
Title (de)
NICKELPULVER, VERFAHREN ZU DESSEN HERSTELLUNG UND SOLCH EIN NICKELPULVER VERWENDENDE POLYMER-PTC-VORRICHTUNG
Title (fr)
POUDRE DE NICKEL, SON PROCEDE DE PRODUCTION ET DISPOSITIF DE POLYMERE PTC UTILISANT UNE TELLE POUDRE DE NICKEL
Publication
Application
Priority
- JP 2006323720 W 20061128
- JP 2005344631 A 20051129
Abstract (en)
[origin: EP1974840A1] There is provided a nickel powder which is inexpensive, has low electrical resistance when kneaded with a resin, has good weatherability, and can be used as an electrically conductive particles which are used as electrically conductive fillers for an electrically conductive paste. The nickel powder contains 1 - 20 % by mass of cobalt and the balance which comprises nickel and unavoidable impurities and which is formed of secondary particles of aggregated primary particles, which powder is characterized in that the powder has an average primary particle diameter being in 1.0 - 3.0 µm, a ratio Ã/d 1 of a standard deviation à of a primary particle diameter to the average primary particle diameter d 1 being 0.4 or less, an average secondary particle diameter being 5-60 µm, a tap density being 1.0 - 3.5 g/mL, and a specific surface area being 2.0 m 2 /g or less.
IPC 8 full level
B22F 1/00 (2022.01); B22F 1/052 (2022.01); B22F 9/24 (2006.01); C22C 19/03 (2006.01); H01B 1/22 (2006.01); H01B 5/00 (2006.01); H01C 7/02 (2006.01)
CPC (source: EP KR US)
B22F 1/00 (2013.01 - EP KR US); B22F 1/052 (2022.01 - EP KR US); B22F 9/24 (2013.01 - EP KR); H01B 1/22 (2013.01 - EP KR); H01B 5/00 (2013.01 - KR); H01C 7/027 (2013.01 - EP US); H01C 17/06526 (2013.01 - EP); B22F 2999/00 (2013.01 - EP)
Citation (search report)
- [A] JP 2005240164 A 20050908 - SUMITOMO METAL MINING CO
- [A] US 2005072270 A1 20050407 - KATO TOSHIHIRO [JP], et al
- [E] EP 1768135 A1 20070328 - TYCO ELECTRONICS RAYCHEM KK [JP]
- See references of WO 2007063851A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1974840 A1 20081001; EP 1974840 A4 20111109; CN 101316673 A 20081203; CN 101316673 B 20111109; JP 2007146251 A 20070614; JP 4942333 B2 20120530; KR 101356377 B1 20140127; KR 20080072081 A 20080805; TW 200734086 A 20070916; TW I402116 B 20130721; WO 2007063851 A1 20070607
DOCDB simple family (application)
EP 06833524 A 20061128; CN 200680044694 A 20061128; JP 2005344631 A 20051129; JP 2006323720 W 20061128; KR 20087015681 A 20061128; TW 95144043 A 20061128