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1. EP2347021 - COLOURED GOLD ALLOY AND METHOD FOR FORMING THE SAME

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Office
European Patent Office
Application Number 09811780
Application Date 14.07.2009
Publication Number 2347021
Publication Date 27.07.2011
Publication Kind A1
IPC
C22C 5/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
5Alloys based on noble metals
02Alloys based on gold
A44C 1/00
AHUMAN NECESSITIES
44HABERDASHERY; JEWELLERY
CJEWELLERY; BRACELETS; OTHER PERSONAL ADORNMENTS; COINS
1Brooches or clips in their decorative or ornamental aspect
B44C 1/00
BPERFORMING OPERATIONS; TRANSPORTING
44DECORATIVE ARTS
CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
1Processes, not specifically provided for elsewhere, for producing decorative surface effects
C22F 1/14
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
14of noble metals or alloys based thereon
CPC
C22C 5/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
5Alloys based on noble metals
02Alloys based on gold
A44C 27/003
AHUMAN NECESSITIES
44HABERDASHERY; JEWELLERY
CPERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
27Making jewellery or other personal adornments
001Materials for manufacturing jewellery
002Metallic materials
003Metallic alloys
Applicants AUTIUM PTE LTD
Inventors LOH PENG CHUM
Designated States
Priority Data 2008065575 08.09.2008 SG
2008091381 11.12.2008 SG
Title
(DE) FARBIGE GOLDLEGIERUNG UND VERFAHREN ZU IHRER BILDUNG
(EN) COLOURED GOLD ALLOY AND METHOD FOR FORMING THE SAME
(FR) ALLIAGE D'OR COLORE ET PROCEDE DE FORMATION ASSOCIE
Abstract
(EN) A method for forming coloured gold alloy is disclosed. The method comprises coating a layer of oil on a gold alloy and heating the coated gold alloy at a temperature selected based on the colouring on the gold alloy desired until the colouring appears. The gold alloy comprises gold, titanium, and at least one other element. The titanium content in the alloy is more than 10 wt%.
(FR) L'invention concerne un procédé de formation d'un alliage d'or coloré. Ce procédé consiste à déposer une couche d'huile sur un alliage d'or et à chauffer ledit alliage revêtu à une température déterminée en fonction de la coloration d'alliage souhaitée, jusqu'à ce que cette coloration apparaisse. L'alliage en or contient de l'or, du titane et au moins un autre élément. La teneur en titane de l'alliage est supérieure à 10% en poids.
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