Global Patent Index - EP 1315842 A2

EP 1315842 A2 2003-06-04 - METHOD FOR PROTECTING THE SURFACE OF A MAGNESIUM MELT

Title (en)

METHOD FOR PROTECTING THE SURFACE OF A MAGNESIUM MELT

Title (de)

VERFAHREN ZUM SCHÜTZEN DER OBERFLÄCHE EINER MAGNESIUMSCHMELZE MITTELS KOHLENDIOXID

Title (fr)

PROCEDE DE PROTECTION DE LA SURFACE D'UNE MASSE FONDUE DE MAGNESIUM

Publication

EP 1315842 A2 (DE)

Application

EP 01974102 A

Priority

  • DE 10038543 A
  • EP 0108983 W

Abstract (en)

[origin: WO0212575A2] The invention relates to a method for protecting the surface of a magnesium melt, or a melt of an alloy with magnesium, whereby a protective layer is placed on the surface of the melt. The method is characterised in that carbon dioxide is placed on the surface of the relevant melt in solid form, for example, in the form of carbon dioxide snow or carbon dioxide pellets.

IPC 1-7 (main, further and additional classification)

C22B 26/22

IPC 8 full level (invention and additional information)

C22B 9/00 (2006.01); C22B 9/10 (2006.01); C22B 26/22 (2006.01)

CPC (invention and additional information)

C22B 9/103 (2013.01); C22B 9/006 (2013.01); C22B 26/22 (2013.01)

Citation (search report)

See references of WO 0212575A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0212575 A2 20020214; WO 0212575 A3 20020801; AU 9371601 A 20020218; DE 10038543 A1 20020214; EP 1315842 A2 20030604

INPADOC legal status


2006-07-19 [18R] REFUSED

- Effective date: 20060130

2004-04-07 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040220

2003-06-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030228

2003-06-04 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL LT LV MK RO SI