EP 2420583 A3 20120704 - Perfectly white, tarnish-proof noble metal jewellery alloy

Title (en)

Perfectly white, tarnish-proof noble metal jewellery alloy

Title (de)

Ideal-weiße, anlaufbeständige Edelmetall-Schmucklegierung

Title (fr)

Alliage de bijou en métal précieux blanc idéal et résistant

Publication

EP 2420583 A3 20120704 (DE)

Application

EP 11005688 A 20110712

Priority

DE 102010026930 A 20100712
DE 202010010147 U 20100712

Abstract (en)

[origin: EP2420583A2] The ideal-white, tarnish-resistant precious metal jewellery alloy comprises rhodium (40-70 wt.%), platinum (60-30 wt.%), and ruthenium, iridium and/or gold (20 wt.%), and/or palladium (30 wt.%), where total portion of rhodium, platinum and additives is 100% and the platinum is replaced through palladium.

IPC 8 full level

C22C 5/04 (2006.01)

CPC (source: EP)

C22C 5/04 (2013.01); A44C 27/003 (2013.01)

Citation (search report)

[XI] DE 102008050135 A1 20100408 - UMICORE GALVANOTECHNIK GMBH [DE]
[X] US 3779728 A 19731218 - HANSEN J, et al
[X] US 2005265888 A1 20051201 - LIANG JIANG [US], et al
[I] US 2008232999 A1 20080925 - FOGEL KENNETH D [US]
[X] MASSALSKI, T.B.: "Binary alloy phase diagrams", vol. 3, 1 January 1990, ASM INTERNATIONAL, USA, ISBN: 0-87170-406-4, XP002675554

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)

EP 2420583 A2 20120222; EP 2420583 A3 20120704; EP 2420583 A8 20120516; EP 2420583 B1 20161102; EP 3135781 A1 20170301

DOCDB simple family (application)

EP 11005688 A 20110712; EP 16002040 A 20110712