Global Patent Index - EP 1028928 A1

EP 1028928 A1 2000-08-23 - SINTERED SHAPED BODY REINFORCED WITH PLATELETS

Title (en)

SINTERED SHAPED BODY REINFORCED WITH PLATELETS

Title (de)

PLATELETVERSTÄRKTER SINTERFORMKÖRPER

Title (fr)

CORPS FRITTE RENFORCE PAR DES PLAQUETTES

Publication

EP 1028928 A1 (DE)

Application

EP 98963407 A

Priority

  • DE 19748232 A
  • EP 9806914 W

Abstract (en)

[origin: DE19850366A1] A novel sintered article comprises a stabilized tetragonal zirconium oxide-containing matrix material, a major amount of an aluminum oxide/chromium oxide solid solution and a minor amount of an alkali metal-, alkaline earth metal-, Cd-, Pb-, Hg-, and/or rare earth-substituted aluminum oxide/chromium oxide solid solution or aluminum oxide solid solution. A novel sintered article comprises 60-98 vol.% matrix material containing 2-40 vol.% stabilized tetragonal zirconium oxide; 67.1-99.2 vol.% aluminum oxide/chromium oxide solid solution; and 0.8-32.9 vol.% another solid solution chosen from La0.9Al11.76-xCrxO19, Me1Al11-xCrxO17, Me2Al12-xCrxO19, MeAl12-xCrxO19 and/or Me3Al11-xCrxO18, where Me1 = alkali metal, Me2 = alkaline earth metal, Me = Cd, Pb or Hg, Me3 = rare earth metal and x = 0.0007 to 0.045. Independent claims are also included for (i) processes for producing the above sintered article; and (ii) a sintered article with a stabilized tetragonal zirconium oxide-containing matrix material which contains platelets of Me1Al11O17, Me2Al12O19, MeAl12O19 and/or Me3Al12O18, where Me1 = alkali metal, Me2 = alkaline earth metal, Me = Cd, Pb or Hg, Me3 = rare earth metal.

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

C04B 35/80; A61L 27/00; C04B 35/119

IPC 8 full level (invention and additional information)

A61L 27/00 (2006.01); A61L 27/10 (2006.01); C04B 35/10 (2006.01); C04B 35/119 (2006.01); C04B 35/12 (2006.01); C04B 35/78 (2006.01); C04B 35/80 (2006.01)

CPC (invention and additional information)

C04B 35/6455 (2013.01); A61L 27/10 (2013.01); C04B 35/119 (2013.01); C04B 35/6263 (2013.01); C04B 35/803 (2013.01); C04B 2235/3201 (2013.01); C04B 2235/3205 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3227 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3241 (2013.01); C04B 2235/3243 (2013.01); C04B 2235/3246 (2013.01); C04B 2235/3284 (2013.01); C04B 2235/3296 (2013.01); C04B 2235/3843 (2013.01); C04B 2235/3856 (2013.01); C04B 2235/3886 (2013.01); C04B 2235/661 (2013.01); C04B 2235/72 (2013.01); C04B 2235/765 (2013.01); C04B 2235/77 (2013.01); C04B 2235/78 (2013.01); C04B 2235/785 (2013.01); C04B 2235/786 (2013.01); C04B 2235/80 (2013.01); C04B 2235/96 (2013.01)

Citation (search report)

See references of WO 9923048A1

Designated contracting state (EPC)

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

EPO simple patent family

DE 19850366 A1 19990506; DE 19850366 B4 20161215; EP 1028928 A1 20000823; JP 2001521874 A 20011113; US 6452957 B1 20020917; WO 9923048 A1 19990514

INPADOC legal status


2010-12-22 [18R] REFUSED

- Ref Legal Event Code: 18R

- Effective date: 20100816

2007-05-09 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20001009

2000-11-22 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20001009

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000531

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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